Real-life SDN and network automation architectures and solutions that work outside of the cozy environment of vendor-branded PowerPoint.Software Gone Wild by ipSpace.netnoemail@noemail.org (Ivan Pepelnjak)Thu, 15 Jan 2026 07:16:21 GMTHugo https://gohugo.io/https://blog.ipspace.net/tag/software-gone-wild/en-usno(C) ipSpace.netSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationA podcast focusing on real-life SDN, NFV and SDDC architectures and solutions that work outside of the cozy environment of vendor-branded PowerPoint. SDN and NFV for real-life networksipSpace.netdevnull@ipspace.netipSpace.netIETF v6ops Working Group with Nick Buragliohttps://blog.ipspace.net/2025/12/v6ops-ietf-working-group/?utm_source=atom_feedSoftware Gone WildpodcastIPv6Thu, 11 Dec 2025 08:03:00 +0100https://blog.ipspace.net/2025/12/v6ops-ietf-working-group/<p>The first IPv6 specs were published in 1995, and yet 30 years later, we still have a pretty active <a href="https://datatracker.ietf.org/wg/v6ops/about/">IETF working group</a> focused on &ldquo;<em>developing guidelines for the deployment and operation of new and existing IPv6 networks.</em>&rdquo; (taken from the <a href="https://datatracker.ietf.org/doc/charter-ietf-v6ops/05/">old charter</a>; they <a href="https://datatracker.ietf.org/doc/charter-ietf-v6ops/06/">updated it</a> in late October 2025). Why is it taking so long, and what problems are they trying to solve?</p> <p>Nick Buraglio, one of the working group chairs, provided some answers in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_203-IETF_v6ops_Working_Group_with_Nick_Buraglio.mp3">Episode 203</a> of the Software Gone Wild podcast.</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_203-IETF_v6ops_Working_Group_with_Nick_Buraglio.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noThe first IPv6 specs were published in 1995, and yet 30 years later, we still have a pretty active IETF working group focused on &ldquo;developing guidelines for the deployment and operation of new and existing IPv6 networks.&rdquo; (taken from the old charter; they updated it in late October 2025). Why is it taking so long, and what problems are they trying to solve? Nick Buraglio, one of the working group chairs, provided some answers in Episode 203 of the Software Gone Wild podcast. Listen to the podcastipSpace.netThe first IPv6 specs were published in 1995, and yet 30 years later, we still have a pretty active IETF working group focused on &ldquo;developing guidelines for the deployment and operation of new and existing IPv6 networks.&rdquo; (taken from the old charter; they updated it in late October 2025). Why is it taking so long, and what problems are they trying to solve? Nick Buraglio, one of the working group chairs, provided some answers in Episode 203 of the Software Gone Wild podcast. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationUsing netlab for Classroom Training with Sander Steffannhttps://blog.ipspace.net/2025/11/using-netlab-ipv6-training/?utm_source=atom_feedSoftware Gone WildpodcastnetlabFri, 14 Nov 2025 07:17:00 +0100https://blog.ipspace.net/2025/11/using-netlab-ipv6-training/<p>In March 2024, I received my <a href="https://github.com/ipspace/netlab/pull/1050">first PR</a> from an airplane: <a href="https://www.linkedin.com/in/sandersteffann/">Sander Steffann</a> was flying to South Africa to deliver an Ansible training and fixed a minor annoyance in the then-new multilab feature.</p> <p>Of course, I wanted to know more about his setup, but it took us over a year and a half till we managed to sit down (virtually) and chat about it, the state of IPv6, the impact of CG-NAT on fraud prevention, and why digital twins don&rsquo;t make sense in large datacenter migrations.</p> <p>For more details, listen to Episode 202 of Software Gone Wild.</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_202-Using_netlab_for_Training.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noIn March 2024, I received my first PR from an airplane: Sander Steffann was flying to South Africa to deliver an Ansible training and fixed a minor annoyance in the then-new multilab feature. Of course, I wanted to know more about his setup, but it took us over a year and a half till we managed to sit down (virtually) and chat about it, the state of IPv6, the impact of CG-NAT on fraud prevention, and why digital twins don&rsquo;t make sense in large datacenter migrations. For more details, listen to Episode 202 of Software Gone Wild. Listen to the podcastipSpace.netIn March 2024, I received my first PR from an airplane: Sander Steffann was flying to South Africa to deliver an Ansible training and fixed a minor annoyance in the then-new multilab feature. Of course, I wanted to know more about his setup, but it took us over a year and a half till we managed to sit down (virtually) and chat about it, the state of IPv6, the impact of CG-NAT on fraud prevention, and why digital twins don&rsquo;t make sense in large datacenter migrations. For more details, listen to Episode 202 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationWorking for a Vendor with David Geehttps://blog.ipspace.net/2025/10/working-for-vendor-david-gee/?utm_source=atom_feedSoftware Gone WildpodcastTue, 7 Oct 2025 08:23:00 +0200https://blog.ipspace.net/2025/10/working-for-vendor-david-gee/<p>When I first met David Gee, he worked for a large system integrator. A few years later, he moved to a networking vendor, worked for a few of them, then for a software vendor, and finally decided to start his own system integration business.</p> <p>Obviously, I wanted to know what drove him to make those changes, what lessons he learned working in various parts of the networking industry, and what (looking back with perfect hindsight) he would have changed.</p><div class='jump-link'><a href='https://blog.ipspace.net/2025/10/working-for-vendor-david-gee/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhen I first met David Gee, he worked for a large system integrator. A few years later, he moved to a networking vendor, worked for a few of them, then for a software vendor, and finally decided to start his own system integration business. Obviously, I wanted to know what drove him to make those changes, what lessons he learned working in various parts of the networking industry, and what (looking back with perfect hindsight) he would have changed.Read more &hellip;ipSpace.netWhen I first met David Gee, he worked for a large system integrator. A few years later, he moved to a networking vendor, worked for a few of them, then for a software vendor, and finally decided to start his own system integration business. Obviously, I wanted to know what drove him to make those changes, what lessons he learned working in various parts of the networking industry, and what (looking back with perfect hindsight) he would have changed.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationLabbing Network Technology Details with netlabhttps://blog.ipspace.net/2025/09/labbing-network-technology-details/?utm_source=atom_feedSoftware Gone WildnetlabpodcastWed, 10 Sep 2025 08:08:00 GMThttps://blog.ipspace.net/2025/09/labbing-network-technology-details/<p>It&rsquo;s been over four years since I published the <a href="/2021/04/bringing-young-blood-in-networking/">last Software Gone Wild episode</a>. In the meantime, I spent most of my time developing an <a href="https://netlab.tools/">open-source labbing tool</a>, so it should be no surprise that the first post-hiatus episode focused on a <em>netlab</em> use case: how Ethan Banks (of the <a href="https://packetpushers.net/">PacketPushers</a> fame) is using the tool to quickly check the technology details for his <a href="https://packetpushers.net/podcast/n-is-for-networking/">N is for Networking</a> podcast.</p> <p>As expected, our discussion took us all over the place, including (according to Riverside AI):</p><div class='jump-link'><a href='https://blog.ipspace.net/2025/09/labbing-network-technology-details/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIt&rsquo;s been over four years since I published the last Software Gone Wild episode. In the meantime, I spent most of my time developing an open-source labbing tool, so it should be no surprise that the first post-hiatus episode focused on a netlab use case: how Ethan Banks (of the PacketPushers fame) is using the tool to quickly check the technology details for his N is for Networking podcast. As expected, our discussion took us all over the place, including (according to Riverside AI):Read more &hellip;ipSpace.netIt&rsquo;s been over four years since I published the last Software Gone Wild episode. In the meantime, I spent most of my time developing an open-source labbing tool, so it should be no surprise that the first post-hiatus episode focused on a netlab use case: how Ethan Banks (of the PacketPushers fame) is using the tool to quickly check the technology details for his N is for Networking podcast. As expected, our discussion took us all over the place, including (according to Riverside AI):Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBringing New Engineers into Networking on Software Gone Wildhttps://blog.ipspace.net/2021/04/bringing-young-blood-in-networking/?utm_source=atom_feedSoftware Gone WildtrainingpodcastFri, 9 Apr 2021 06:34:00 GMThttps://blog.ipspace.net/2021/04/bringing-young-blood-in-networking/<p>As I started <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild podcast</a> in June 2014, I wanted to help networking engineers grow beyond the traditional networking technologies. It&rsquo;s only fitting to conclude this project almost seven years and 116 episodes later with a similar theme <a href="https://www.linkedin.com/in/avifreedman/">Avi Freedman</a> proposed when we started discussing podcast topics in late 2020: how do we make networking attractive to young engineers.</p> <p><a href="https://www.ipspace.net/Author:Elisa_Jasinska">Elisa Jasinska</a> and <a href="https://www.linkedin.com/in/roopa-prabhu-5678541/">Roopa Prabhu</a> joined Avi and me, and we had a lively discussion that I hope you&rsquo;ll find interesting.</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_116-Starting_in_Networking.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noAs I started Software Gone Wild podcast in June 2014, I wanted to help networking engineers grow beyond the traditional networking technologies. It&rsquo;s only fitting to conclude this project almost seven years and 116 episodes later with a similar theme Avi Freedman proposed when we started discussing podcast topics in late 2020: how do we make networking attractive to young engineers. Elisa Jasinska and Roopa Prabhu joined Avi and me, and we had a lively discussion that I hope you&rsquo;ll find interesting. Listen to the podcastipSpace.netAs I started Software Gone Wild podcast in June 2014, I wanted to help networking engineers grow beyond the traditional networking technologies. It&rsquo;s only fitting to conclude this project almost seven years and 116 episodes later with a similar theme Avi Freedman proposed when we started discussing podcast topics in late 2020: how do we make networking attractive to young engineers. Elisa Jasinska and Roopa Prabhu joined Avi and me, and we had a lively discussion that I hope you&rsquo;ll find interesting. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFreeRTR Deep Dive on Software Gone Wildhttps://blog.ipspace.net/2021/01/freertr-deep-dive/?utm_source=atom_feedBGPIP routingSoftware Gone WildpodcastFri, 29 Jan 2021 06:31:00 GMThttps://blog.ipspace.net/2021/01/freertr-deep-dive/<p><em>This podcast introduction was written by <a href="https://www.ipspace.net/Expert:Nick_Buraglio">Nick Buraglio</a>, the host of today&rsquo;s podcast.</em></p> <p>In today&rsquo;s evolving landscape of whitebox, brightbox, and software routing, a small but incredibly comprehensive routing platform called <a href="http://freerouter.nop.hu/">FreeRTR</a> has quietly been <a href="https://connect.geant.org/2020/01/17/rare-project-bringing-back-the-network-innovation-within-research-and-education-community">evolving</a> out of a research and education service provider network in Hungary. </p> <p><a href="https://www.stubarea51.net/about-me/">Kevin Myers</a> of <a href="https://www.iparchitechs.com/">IPArchitechs</a> brought this to my attention around <a href="https://forwardingplane.net/2019/03/02/freertr-as-a-lab-environment/">March of 2019</a>, at which point I went <a href="https://github.com/buraglio/SRv6-Net">straight to work with it</a> to see how far it could be pushed.</p><div class='jump-link'><a href='https://blog.ipspace.net/2021/01/freertr-deep-dive/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. In today&rsquo;s evolving landscape of whitebox, brightbox, and software routing, a small but incredibly comprehensive routing platform called FreeRTR has quietly been evolving out of a research and education service provider network in Hungary.  Kevin Myers of IPArchitechs brought this to my attention around March of 2019, at which point I went straight to work with it to see how far it could be pushed.Read more &hellip;ipSpace.netThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. In today&rsquo;s evolving landscape of whitebox, brightbox, and software routing, a small but incredibly comprehensive routing platform called FreeRTR has quietly been evolving out of a research and education service provider network in Hungary.  Kevin Myers of IPArchitechs brought this to my attention around March of 2019, at which point I went straight to work with it to see how far it could be pushed.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationStreaming Telemetry with Avi Freedman on Software Gone Wildhttps://blog.ipspace.net/2020/12/streaming-telemetry-software-gone-wild/?utm_source=atom_feednetwork managementpodcastSoftware Gone WildFri, 18 Dec 2020 06:36:00 GMThttps://blog.ipspace.net/2020/12/streaming-telemetry-software-gone-wild/<p>Remember <a href="/2020/12/updated-ansible-parsing-content/">my rant</a> how &ldquo;<em>fail fast, fail often sounds great in a VC pitch deck, and sucks when you have to deal with its results</em>&rdquo;? Streaming telemetry is no exception to this rule, and <a href="https://www.linkedin.com/in/avifreedman/">Avi Freedman</a> (CEO of Kentik) has been on the receiving end of this gizmo long enough to have to deal with several generations of experiments&hellip; and formed a few strong opinions.</p> <p>Unfortunately Avi is still a bit more diplomatic than <a href="https://www.youtube.com/watch?v=oebqlzblfyo">Artur Bergman</a> &ndash; another CEO I love for his blunt statements &ndash; but based on his <a href="/2017/09/nfd16-first-impressions/">NFD16 presentation</a> I expected a lively debate, and I was definitely not disappointed.</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_114-Streaming_Telemetry.mp3">Enjoy the podcast</a></div> devnull@ipspace.net (ipSpace.net)noRemember my rant how &ldquo;fail fast, fail often sounds great in a VC pitch deck, and sucks when you have to deal with its results&rdquo;? Streaming telemetry is no exception to this rule, and Avi Freedman (CEO of Kentik) has been on the receiving end of this gizmo long enough to have to deal with several generations of experiments&hellip; and formed a few strong opinions. Unfortunately Avi is still a bit more diplomatic than Artur Bergman &ndash; another CEO I love for his blunt statements &ndash; but based on his NFD16 presentation I expected a lively debate, and I was definitely not disappointed. Enjoy the podcastipSpace.netRemember my rant how &ldquo;fail fast, fail often sounds great in a VC pitch deck, and sucks when you have to deal with its results&rdquo;? Streaming telemetry is no exception to this rule, and Avi Freedman (CEO of Kentik) has been on the receiving end of this gizmo long enough to have to deal with several generations of experiments&hellip; and formed a few strong opinions. Unfortunately Avi is still a bit more diplomatic than Artur Bergman &ndash; another CEO I love for his blunt statements &ndash; but based on his NFD16 presentation I expected a lively debate, and I was definitely not disappointed. Enjoy the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFaucet Deep Dive on Software Gone Wildhttps://blog.ipspace.net/2020/10/faucet-deep-dive/?utm_source=atom_feedOpenFlowSDNpodcastSoftware Gone WildFri, 9 Oct 2020 06:32:00 GMThttps://blog.ipspace.net/2020/10/faucet-deep-dive/<p><em>This podcast introduction was written by <a href="https://www.ipspace.net/Expert:Nick_Buraglio">Nick Buraglio</a>, the host of today&rsquo;s podcast.</em></p> <p>In the original days of this podcast, there were heavy, deep discussions about this new protocol called “OpenFlow”. Like many of our most creative innovations in the IT field, OpenFlow came from an academic research project that aimed to change the way that we as operators managed, configured, and even thought about networking fundamentals.</p> <p>For the most part, this project did what it intended, but once the marketing machine realized the flexibility of the technology and its potential to completely change the way we think about vendors, networks, provisioning, and management of networking, they were off to the races.</p> <p>We all know what happened next.</p><div class='jump-link'><a href='https://blog.ipspace.net/2020/10/faucet-deep-dive/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. In the original days of this podcast, there were heavy, deep discussions about this new protocol called “OpenFlow”. Like many of our most creative innovations in the IT field, OpenFlow came from an academic research project that aimed to change the way that we as operators managed, configured, and even thought about networking fundamentals. For the most part, this project did what it intended, but once the marketing machine realized the flexibility of the technology and its potential to completely change the way we think about vendors, networks, provisioning, and management of networking, they were off to the races. We all know what happened next.Read more &hellip;ipSpace.netThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. In the original days of this podcast, there were heavy, deep discussions about this new protocol called “OpenFlow”. Like many of our most creative innovations in the IT field, OpenFlow came from an academic research project that aimed to change the way that we as operators managed, configured, and even thought about networking fundamentals. For the most part, this project did what it intended, but once the marketing machine realized the flexibility of the technology and its potential to completely change the way we think about vendors, networks, provisioning, and management of networking, they were off to the races. We all know what happened next.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBGP Navel Gazing on Software Gone Wildhttps://blog.ipspace.net/2020/06/bgp-navel-gazing/?utm_source=atom_feedBGPpodcastSoftware Gone WildThu, 25 Jun 2020 05:57:00 GMThttps://blog.ipspace.net/2020/06/bgp-navel-gazing/<p><em>This podcast introduction was written by <a href="https://www.ipspace.net/Expert:Nick_Buraglio">Nick Buraglio</a>, the host of today&rsquo;s podcast.</em></p> <p>As we all know, BGP runs the networked world. It is a protocol that has existed and operated in the vast expanse of the internet in one form or another since early 1990s, and despite the fact that it has been extended, enhanced, twisted, and warped into performing a myriad of tasks that one would never have imagined in the silver era of internetworking, it has remained largely unchanged in its operational core.</p> <p>The world as we know it would never exist without BGP, and because of the fact that it is such a widely deployed protocol with such a solid track record of “just working”, the transition to a better security model surrounding it has been extraordinarily slow to modernize.</p><div class='jump-link'><a href='https://blog.ipspace.net/2020/06/bgp-navel-gazing/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. As we all know, BGP runs the networked world. It is a protocol that has existed and operated in the vast expanse of the internet in one form or another since early 1990s, and despite the fact that it has been extended, enhanced, twisted, and warped into performing a myriad of tasks that one would never have imagined in the silver era of internetworking, it has remained largely unchanged in its operational core. The world as we know it would never exist without BGP, and because of the fact that it is such a widely deployed protocol with such a solid track record of “just working”, the transition to a better security model surrounding it has been extraordinarily slow to modernize.Read more &hellip;ipSpace.netThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. As we all know, BGP runs the networked world. It is a protocol that has existed and operated in the vast expanse of the internet in one form or another since early 1990s, and despite the fact that it has been extended, enhanced, twisted, and warped into performing a myriad of tasks that one would never have imagined in the silver era of internetworking, it has remained largely unchanged in its operational core. The world as we know it would never exist without BGP, and because of the fact that it is such a widely deployed protocol with such a solid track record of “just working”, the transition to a better security model surrounding it has been extraordinarily slow to modernize.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSuzieQ with Dinesh Dutt and Justin Pietsch on Software Gone Wildhttps://blog.ipspace.net/2020/06/suzieq-deep-dive/?utm_source=atom_feednetwork managementpodcastSoftware Gone WildFri, 12 Jun 2020 06:34:00 GMThttps://blog.ipspace.net/2020/06/suzieq-deep-dive/<p>In early May 2020 I <a href="/2020/05/suzieq-useful-network-management-system/">wrote a blog post introducing SuzieQ</a>, a <a href="https://github.com/netenglabs/suzieq">network observability platform</a> Dinesh Dutt worked on for the last few years. If that blog post made you look for more details, you might like the <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_111-SuzieQ.mp3">Episode 111</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a> in which we went deeper and covered these topics:</p> <ul> <li>How does SuzieQ collect data</li> <li>What data is it collecting from network devices</li> <li>What can you do with that data</li> <li>How can you customize and extend SuzieQ</li> </ul> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_111-SuzieQ.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noIn early May 2020 I wrote a blog post introducing SuzieQ, a network observability platform Dinesh Dutt worked on for the last few years. If that blog post made you look for more details, you might like the Episode 111 of Software Gone Wild in which we went deeper and covered these topics: How does SuzieQ collect data What data is it collecting from network devices What can you do with that data How can you customize and extend SuzieQ Listen to the podcastipSpace.netIn early May 2020 I wrote a blog post introducing SuzieQ, a network observability platform Dinesh Dutt worked on for the last few years. If that blog post made you look for more details, you might like the Episode 111 of Software Gone Wild in which we went deeper and covered these topics: How does SuzieQ collect data What data is it collecting from network devices What can you do with that data How can you customize and extend SuzieQ Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSmart NICs with Silvano Gai on Software Gone Wildhttps://blog.ipspace.net/2020/05/smartnic-pensando-podcast/?utm_source=atom_feedswitchingpodcastSDNSoftware Gone WildFri, 15 May 2020 07:01:00 GMThttps://blog.ipspace.net/2020/05/smartnic-pensando-podcast/<p>A while ago we discussed a <a href="/2018/09/smart-or-dumb-nics-on-software-gone-wild/">software-focused view of Network Interface Cards</a> (NICs) with Luke Gorrie, and a <a href="/2019/03/smart-nics-and-related-linux-kernel/">hardware-focused view of them</a> with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox).</p> <p>Why would anyone want to implement features in hardware and not in software, and what would be the best hardware implementation? We discussed these dilemmas with Silvano Gai in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_110-Pensando.mp3">Episode 110</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild podcast</a>.</p><div class='jump-link'><a href='https://blog.ipspace.net/2020/05/smartnic-pensando-podcast/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago we discussed a software-focused view of Network Interface Cards (NICs) with Luke Gorrie, and a hardware-focused view of them with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox). Why would anyone want to implement features in hardware and not in software, and what would be the best hardware implementation? We discussed these dilemmas with Silvano Gai in Episode 110 of Software Gone Wild podcast.Read more &hellip;ipSpace.netA while ago we discussed a software-focused view of Network Interface Cards (NICs) with Luke Gorrie, and a hardware-focused view of them with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox). Why would anyone want to implement features in hardware and not in software, and what would be the best hardware implementation? We discussed these dilemmas with Silvano Gai in Episode 110 of Software Gone Wild podcast.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOverlay Networking with Ouroboros on Software Gone Wildhttps://blog.ipspace.net/2020/04/podcast-ouroboros/?utm_source=atom_feedoverlay networkspodcastSD-WANSoftware Gone WildFri, 24 Apr 2020 07:10:00 GMThttps://blog.ipspace.net/2020/04/podcast-ouroboros/<p><em>This podcast introduction was written by <a href="https://www.ipspace.net/Expert:Nick_Buraglio">Nick Buraglio</a>, the host of today&rsquo;s podcast.</em></p> <hr> <p>As private overlays are becoming more and more prevalent and as SD-WAN systems and technologies advance, it remains critical that we continue to investigate how we think about internetworking. Even with platforms such as <a href="https://github.com/slackhq/nebula">Slack Nebula</a>, <a href="https://zerotier.com/">Zerotier</a>, or the <a href="https://www.wireguard.com/">wireguard</a> based <a href="https://tailscale.com/">TailScale</a> becoming a mainstream staple of many businesses, the question of “what is next” is being asked by an ambitious group of researchers.</p><div class='jump-link'><a href='https://blog.ipspace.net/2020/04/podcast-ouroboros/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. As private overlays are becoming more and more prevalent and as SD-WAN systems and technologies advance, it remains critical that we continue to investigate how we think about internetworking. Even with platforms such as Slack Nebula, Zerotier, or the wireguard based TailScale becoming a mainstream staple of many businesses, the question of “what is next” is being asked by an ambitious group of researchers.Read more &hellip;ipSpace.netThis podcast introduction was written by Nick Buraglio, the host of today&rsquo;s podcast. As private overlays are becoming more and more prevalent and as SD-WAN systems and technologies advance, it remains critical that we continue to investigate how we think about internetworking. Even with platforms such as Slack Nebula, Zerotier, or the wireguard based TailScale becoming a mainstream staple of many businesses, the question of “what is next” is being asked by an ambitious group of researchers.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetDev 0x13 on Software Gone Wildhttps://blog.ipspace.net/2020/01/netdev-0x13-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 10 Jan 2020 09:07:00 +0100https://blog.ipspace.net/2020/01/netdev-0x13-on-software-gone-wild/ <p>The last <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a> podcast recorded in 2019 <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_108-NetDev_0x13.mp3">focused on advances in Linux networking</a> - in particular on interesting stuff presented at NetDev 0x13 conference in Prague. The guests (in alphabetical first name order) <a href="https://datatracker.ietf.org/person/Jamal%20Hadi%20Salim">Jamal Hadi Salim</a>, <a href="https://www.linkedin.com/in/shrijeet-mukherjee-b275/">Shrijeet Mukherjee</a>, <a href="https://www.linkedin.com/in/sowmini/">Sowmini Varadhan</a>, and <a href="https://www.linkedin.com/in/tom-herbert/">Tom Herbert</a> shared their favorite topics, and commented on the future of Linux networking.<div class='jump-link'><a href='https://blog.ipspace.net/2020/01/netdev-0x13-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThe last Software Gone Wild podcast recorded in 2019 focused on advances in Linux networking - in particular on interesting stuff presented at NetDev 0x13 conference in Prague. The guests (in alphabetical first name order) Jamal Hadi Salim, Shrijeet Mukherjee, Sowmini Varadhan, and Tom Herbert shared their favorite topics, and commented on the future of Linux networking.Read more &hellip;ipSpace.netThe last Software Gone Wild podcast recorded in 2019 focused on advances in Linux networking - in particular on interesting stuff presented at NetDev 0x13 conference in Prague. The guests (in alphabetical first name order) Jamal Hadi Salim, Shrijeet Mukherjee, Sowmini Varadhan, and Tom Herbert shared their favorite topics, and commented on the future of Linux networking.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationIP Fabric with Gian-Paolo Boarina on Software Gone Wildhttps://blog.ipspace.net/2019/11/ip-fabric-with-gian-paolo-boarina-on/?utm_source=atom_feedautomationintent-based networkingpodcastSoftware Gone WildFri, 29 Nov 2019 08:45:00 +0100https://blog.ipspace.net/2019/11/ip-fabric-with-gian-paolo-boarina-on/<p>No, we were not talking about IP fabrics in general - <a href="https://ipfabric.io/"><strong>IP Fabric</strong></a> is a network management software (oops, <em>network assurance platform</em>) Gian Paolo <a href="https://www.ifconfig.it/hugo/2019/10/ip-fabric-ambassador/">discovered a while ago</a> and thoroughly tested in the meantime.</p> <p>He was kind enough to share what he found in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_107-IP_Fabric.mp3">Episode 107</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a>, and as Chris Young succinctly summarized: &ldquo;<em>it&rsquo;s really sad what we still get excited about something 30 years after it was first promised</em>&rdquo;&hellip; but maybe this time it really works ;)</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_107-IP_Fabric.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noNo, we were not talking about IP fabrics in general - IP Fabric is a network management software (oops, network assurance platform) Gian Paolo discovered a while ago and thoroughly tested in the meantime. He was kind enough to share what he found in Episode 107 of Software Gone Wild, and as Chris Young succinctly summarized: &ldquo;it&rsquo;s really sad what we still get excited about something 30 years after it was first promised&rdquo;&hellip; but maybe this time it really works ;) Listen to the podcastipSpace.netNo, we were not talking about IP fabrics in general - IP Fabric is a network management software (oops, network assurance platform) Gian Paolo discovered a while ago and thoroughly tested in the meantime. He was kind enough to share what he found in Episode 107 of Software Gone Wild, and as Chris Young succinctly summarized: &ldquo;it&rsquo;s really sad what we still get excited about something 30 years after it was first promised&rdquo;&hellip; but maybe this time it really works ;) Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenBGPD with Claudio Jeker on Software Gone Wildhttps://blog.ipspace.net/2019/10/openbgpd-with-claudio-jeker-on-software/?utm_source=atom_feedpodcastBGPSoftware Gone WildFri, 25 Oct 2019 08:39:00 +0200https://blog.ipspace.net/2019/10/openbgpd-with-claudio-jeker-on-software/ <p>Everyone is talking about <a href="https://www.ipspace.net/FRRouting_Architecture_and_Features">FRRouting suite</a> these days, while hidden somewhere in the background <a href="http://www.openbgpd.org/">OpenBGPD</a> has been making continuous progress for years. Interestingly, OpenBGPD project was started for the same reason FRR was forked - developers were unhappy with Zebra or Quagga routing suite and decided to fix it.</p> <p>We discussed the history of OpenBGPD, its current deployments and future plans with <a href="https://www.netnod.se/claudio-jeker">Claudio Jeker</a>, one of the main OpenBGPD developers, in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_106-OpenBGP.mp3">Episode 106</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a>.</p> <div class="jump-link" data-markdown="1"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_106-OpenBGP.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noEveryone is talking about FRRouting suite these days, while hidden somewhere in the background OpenBGPD has been making continuous progress for years. Interestingly, OpenBGPD project was started for the same reason FRR was forked - developers were unhappy with Zebra or Quagga routing suite and decided to fix it. We discussed the history of OpenBGPD, its current deployments and future plans with Claudio Jeker, one of the main OpenBGPD developers, in Episode 106 of Software Gone Wild. Listen to the podcastipSpace.netEveryone is talking about FRRouting suite these days, while hidden somewhere in the background OpenBGPD has been making continuous progress for years. Interestingly, OpenBGPD project was started for the same reason FRR was forked - developers were unhappy with Zebra or Quagga routing suite and decided to fix it. We discussed the history of OpenBGPD, its current deployments and future plans with Claudio Jeker, one of the main OpenBGPD developers, in Episode 106 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNet2Text: Natural-Language Interface to Network Operationshttps://blog.ipspace.net/2019/09/net2text-natural-language-interface-to/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 27 Sep 2019 09:24:00 +0200https://blog.ipspace.net/2019/09/net2text-natural-language-interface-to/ <p>Sick-and-tired of intent-based GUIs that are barely better than CiscoWorks on steroids? How about asking Siri-like assistant queries about network state in somewhat-limited English and getting replies back in full-blown sentences?</p> <p class="warn">Warning: you might be <a href="/2017/09/self-driving-networks-with-kireeti/">reentering</a> the land of unicorns driving flying DeLoreans... but then keep in mind what <a href="https://en.wikipedia.org/wiki/Clarke%27s_three_laws">Arthur Clarke had to say on this topic</a> ;).</p> <p>Welcome to <a href="https://net2text.ethz.ch/">Net2Text</a>, another proof-of-concept tool created by the group led by <a href="https://vanbever.eu/">Laurent Vanbever</a>… who joined us for a short chat to discuss it, resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_105-Net2Text.mp3">Episode 105</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a>.</p> <div class="jump-link" data-markdown="1"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_105-Net2Text.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noSick-and-tired of intent-based GUIs that are barely better than CiscoWorks on steroids? How about asking Siri-like assistant queries about network state in somewhat-limited English and getting replies back in full-blown sentences? Warning: you might be reentering the land of unicorns driving flying DeLoreans... but then keep in mind what Arthur Clarke had to say on this topic ;). Welcome to Net2Text, another proof-of-concept tool created by the group led by Laurent Vanbever… who joined us for a short chat to discuss it, resulting in Episode 105 of Software Gone Wild. Listen to the podcastipSpace.netSick-and-tired of intent-based GUIs that are barely better than CiscoWorks on steroids? How about asking Siri-like assistant queries about network state in somewhat-limited English and getting replies back in full-blown sentences? Warning: you might be reentering the land of unicorns driving flying DeLoreans... but then keep in mind what Arthur Clarke had to say on this topic ;). Welcome to Net2Text, another proof-of-concept tool created by the group led by Laurent Vanbever… who joined us for a short chat to discuss it, resulting in Episode 105 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationIntent-Based Networking with Batfish on Software Gone Wildhttps://blog.ipspace.net/2019/09/intent-based-networking-with-batfish-on/?utm_source=atom_feedintent-based networkingpodcastSoftware Gone WildFri, 6 Sep 2019 08:08:00 +0200https://blog.ipspace.net/2019/09/intent-based-networking-with-batfish-on/<p>Imagine you would have a system that would read network device configurations, figure out how those devices might be connected, reverse-engineer the network topology, and be able to answer questions like &ldquo;<em>what would happen if this link fails</em>&rdquo; or &ldquo;<em>do I have fully-redundant network</em>&rdquo; or even &ldquo;<em>how will this configuration change impact my network</em>&rdquo;. Welcome to <a href="https://www.batfish.org/">Batfish</a>.</p> <p>Interested? You&rsquo;ll find more in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_104-Batfish.mp3">Episode 104</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild/">Software Gone Wild</a>.</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_104-Batfish.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noImagine you would have a system that would read network device configurations, figure out how those devices might be connected, reverse-engineer the network topology, and be able to answer questions like &ldquo;what would happen if this link fails&rdquo; or &ldquo;do I have fully-redundant network&rdquo; or even &ldquo;how will this configuration change impact my network&rdquo;. Welcome to Batfish. Interested? You&rsquo;ll find more in Episode 104 of Software Gone Wild. Listen to the podcastipSpace.netImagine you would have a system that would read network device configurations, figure out how those devices might be connected, reverse-engineer the network topology, and be able to answer questions like &ldquo;what would happen if this link fails&rdquo; or &ldquo;do I have fully-redundant network&rdquo; or even &ldquo;how will this configuration change impact my network&rdquo;. Welcome to Batfish. Interested? You&rsquo;ll find more in Episode 104 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationDevice Configuration Synthesis with NetComplete on Software Gone Wildhttps://blog.ipspace.net/2019/06/device-configuration-synthesis-with/?utm_source=atom_feedautomationpodcastSDNSoftware Gone WildFri, 21 Jun 2019 08:30:00 +0200https://blog.ipspace.net/2019/06/device-configuration-synthesis-with/<p>When I was still at university the <a href="https://en.wikipedia.org/wiki/Fourth-generation_programming_language">fourth-generation programming languages</a> were all the hype, prompting us to make jokes along the lines &ldquo;fifth generation will implement <em>do what I don&rsquo;t know how</em>&rdquo;</p> <p>The <a href="https://nsg.ee.ethz.ch/home/">research team working in Networked Systems Group</a> at ETH Zurich headed by prof. <a href="https://www.vanbever.eu/">Laurent Vanbever</a> got pretty close. The <a href="https://netcomplete.ethz.ch/">description of their tool</a> says:</p><div class='jump-link'><a href='https://blog.ipspace.net/2019/06/device-configuration-synthesis-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhen I was still at university the fourth-generation programming languages were all the hype, prompting us to make jokes along the lines &ldquo;fifth generation will implement do what I don&rsquo;t know how&rdquo; The research team working in Networked Systems Group at ETH Zurich headed by prof. Laurent Vanbever got pretty close. The description of their tool says:Read more &hellip;ipSpace.netWhen I was still at university the fourth-generation programming languages were all the hype, prompting us to make jokes along the lines &ldquo;fifth generation will implement do what I don&rsquo;t know how&rdquo; The research team working in Networked Systems Group at ETH Zurich headed by prof. Laurent Vanbever got pretty close. The description of their tool says:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationProgrammable Packet Forwarding Pipelines Using P4 on Software Gone Wildhttps://blog.ipspace.net/2019/05/programmable-packet-forwarding/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 17 May 2019 07:04:00 +0200https://blog.ipspace.net/2019/05/programmable-packet-forwarding/ <p>Every time a new simple programming language is invented, we go through the same predictable cycle:</p> <ul><li>Tons of hype;</li> <li>Unbounded enthusiasm when people who never worked in target environment realize they could get something simple done in a short time;</li> <li>Ever-worsening headaches as the enthusiasts try to get a real job done with the shiny new tool;</li> <li>Disappointment;</li> <li>A more powerful language is invented to replace the old one.</li> </ul> <p>A few years ago we experienced the same cycle when OpenFlow was the-one-tool-to-bind-them all.<div class='jump-link'><a href='https://blog.ipspace.net/2019/05/programmable-packet-forwarding/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noEvery time a new simple programming language is invented, we go through the same predictable cycle: Tons of hype; Unbounded enthusiasm when people who never worked in target environment realize they could get something simple done in a short time; Ever-worsening headaches as the enthusiasts try to get a real job done with the shiny new tool; Disappointment; A more powerful language is invented to replace the old one. A few years ago we experienced the same cycle when OpenFlow was the-one-tool-to-bind-them all.Read more &hellip;ipSpace.netEvery time a new simple programming language is invented, we go through the same predictable cycle: Tons of hype; Unbounded enthusiasm when people who never worked in target environment realize they could get something simple done in a short time; Ever-worsening headaches as the enthusiasts try to get a real job done with the shiny new tool; Disappointment; A more powerful language is invented to replace the old one. A few years ago we experienced the same cycle when OpenFlow was the-one-tool-to-bind-them all.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationUsing Faucet to Build SC18 Network with OpenFlowhttps://blog.ipspace.net/2019/04/using-faucet-to-build-sc18-network-with/?utm_source=atom_feedpodcastSDNOpenFlowSoftware Gone WildFri, 19 Apr 2019 08:53:00 +0200https://blog.ipspace.net/2019/04/using-faucet-to-build-sc18-network-with/ <p>Remember how Nick Buraglio tried to <a href="/2015/12/running-open-daylight-in-production/">use OpenDaylight to build a small part of SuperComputing conference network</a>… and ended up with a programmable patch panel?</p> <p>This time he repeated the experiment using <a href="https://faucet.nz/">Faucet SDN Controller</a> – an OpenFlow controller focused on getting the job done – and <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_101-Faucet_at_SC18.mp3">described his experience in Episode 101</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <p>We started with the usual “<em>what problem were you trying to solve” </em>and quickly started teasing apart the architecture and got geekily focused on interesting things like:<div class='jump-link'><a href='https://blog.ipspace.net/2019/04/using-faucet-to-build-sc18-network-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noRemember how Nick Buraglio tried to use OpenDaylight to build a small part of SuperComputing conference network… and ended up with a programmable patch panel? This time he repeated the experiment using Faucet SDN Controller – an OpenFlow controller focused on getting the job done – and described his experience in Episode 101 of Software Gone Wild. We started with the usual “what problem were you trying to solve” and quickly started teasing apart the architecture and got geekily focused on interesting things like:Read more &hellip;ipSpace.netRemember how Nick Buraglio tried to use OpenDaylight to build a small part of SuperComputing conference network… and ended up with a programmable patch panel? This time he repeated the experiment using Faucet SDN Controller – an OpenFlow controller focused on getting the job done – and described his experience in Episode 101 of Software Gone Wild. We started with the usual “what problem were you trying to solve” and quickly started teasing apart the architecture and got geekily focused on interesting things like:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationMultipath TCP on Software Gone Wildhttps://blog.ipspace.net/2019/03/multipath-tcp-on-software-gone-wild/?utm_source=atom_feedpodcastTCPSoftware Gone WildFri, 22 Mar 2019 10:24:00 +0100https://blog.ipspace.net/2019/03/multipath-tcp-on-software-gone-wild/<p>I mentioned Multipath TCP (MP-TCP) numerous times in the past but I never managed to get beyond &ldquo;<em>this is the thing that might solve some TCP multihoming challenges</em>&rdquo; We fixed this omission in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_100-Multipath_TCP.mp3">Episode 100</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> with <a href="https://www.linkedin.com/in/christophpaasch/">Christoph Paasch</a> (software engineer @ Apple) and <a href="https://www.linkedin.com/in/matmartineau/">Mat Martineau</a> from Open Source Technology Center @ Intel.</p><div class='jump-link'><a href='https://blog.ipspace.net/2019/03/multipath-tcp-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noI mentioned Multipath TCP (MP-TCP) numerous times in the past but I never managed to get beyond &ldquo;this is the thing that might solve some TCP multihoming challenges&rdquo; We fixed this omission in Episode 100 of Software Gone Wild with Christoph Paasch (software engineer @ Apple) and Mat Martineau from Open Source Technology Center @ Intel.Read more &hellip;ipSpace.netI mentioned Multipath TCP (MP-TCP) numerous times in the past but I never managed to get beyond &ldquo;this is the thing that might solve some TCP multihoming challenges&rdquo; We fixed this omission in Episode 100 of Software Gone Wild with Christoph Paasch (software engineer @ Apple) and Mat Martineau from Open Source Technology Center @ Intel.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSmart NICs and Related Linux Kernel Infrastructurehttps://blog.ipspace.net/2019/03/smart-nics-and-related-linux-kernel/?utm_source=atom_feedpodcastSDNswitchingSoftware Gone WildFri, 1 Mar 2019 09:15:00 +0100https://blog.ipspace.net/2019/03/smart-nics-and-related-linux-kernel/ <p>A while ago we did a <a href="/2018/09/smart-or-dumb-nics-on-software-gone-wild/">podcast with Luke Gorrie</a> in which he explained why he’d love to have simple, dumb, and easy-to-work-with Ethernet NICs. What about the other side of the coin – smart NICs with their own CPU, RAM and operating system? Do they make sense, when and why would you use them, and how would you integrate them with Linux kernel?</p> <p>We discussed these challenges with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox) in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_99-Smart_NICs.mp3">Episode 99</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2019/03/smart-nics-and-related-linux-kernel/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago we did a podcast with Luke Gorrie in which he explained why he’d love to have simple, dumb, and easy-to-work-with Ethernet NICs. What about the other side of the coin – smart NICs with their own CPU, RAM and operating system? Do they make sense, when and why would you use them, and how would you integrate them with Linux kernel? We discussed these challenges with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox) in Episode 99 of Software Gone Wild.Read more &hellip;ipSpace.netA while ago we did a podcast with Luke Gorrie in which he explained why he’d love to have simple, dumb, and easy-to-work-with Ethernet NICs. What about the other side of the coin – smart NICs with their own CPU, RAM and operating system? Do they make sense, when and why would you use them, and how would you integrate them with Linux kernel? We discussed these challenges with Or Gerlitz (Mellanox), Andy Gospodarek (Broadcom) and Jiri Pirko (Mellanox) in Episode 99 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationHigh-Speed IPsec on Snabb Switch on Software Gone Wildhttps://blog.ipspace.net/2019/02/high-speed-ipsec-on-snabb-switch-on/?utm_source=atom_feedpodcastswitchingIPsecSoftware Gone WildvirtualizationFri, 22 Feb 2019 08:41:00 +0100https://blog.ipspace.net/2019/02/high-speed-ipsec-on-snabb-switch-on/ <p>In previous <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> episodes we covered <a href="/2014/09/snabb-switch-deep-dive-on-software-gone/">Snabb Switch</a> and numerous applications running on it, from <a href="/2014/12/l2vpn-over-ipv6-with-snabb-switch-on/">L2VPN</a> to <a href="/2016/03/x86-based-switching-at-ludicrous-speed/">4over6 gateway</a> and <a href="/2016/12/snabb-switch-with-vmx-control-plane-on/">integration with Juniper vMX code</a>.</p> <p>In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_98-IPsec_on_Snabb_Switch.mp3">Episode 98</a> we focused on another interesting application developed by <a href="https://mr.gy/">Max Rottenkolber</a>: <a href="https://github.com/inters/vita">high-speed VPN gateway using IPsec on top of Snabb Switch</a> (<a href="https://mr.gy/blog/snabb-esp.html">details</a>). Enjoy!</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_98-IPsec_on_Snabb_Switch.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noIn previous Software Gone Wild episodes we covered Snabb Switch and numerous applications running on it, from L2VPN to 4over6 gateway and integration with Juniper vMX code. In Episode 98 we focused on another interesting application developed by Max Rottenkolber: high-speed VPN gateway using IPsec on top of Snabb Switch (details). Enjoy! Listen to the podcastipSpace.netIn previous Software Gone Wild episodes we covered Snabb Switch and numerous applications running on it, from L2VPN to 4over6 gateway and integration with Juniper vMX code. In Episode 98 we focused on another interesting application developed by Max Rottenkolber: high-speed VPN gateway using IPsec on top of Snabb Switch (details). Enjoy! Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Reliability Engineering on Software Gone Wildhttps://blog.ipspace.net/2019/01/network-reliability-engineering-on/?utm_source=atom_feedautomationpodcastSoftware Gone WildTue, 22 Jan 2019 07:58:00 +0100https://blog.ipspace.net/2019/01/network-reliability-engineering-on/<p>In summer 2018 Juniper started talking about another forward-looking concept: Network Reliability Engineering. We wanted to find out whether that&rsquo;s another <a href="/2017/09/self-driving-networks-with-kireeti/"><em>unicorn driving DeLorean with flux capacitors</em></a> or something more tangible, so we invited Matt Oswalt, the author of <a href="https://forums.juniper.net/t5/Enterprise-Cloud-and/The-Network-Reliability-Engineer-s-Manifesto/ba-p/329020">Network Reliability Engineer&rsquo;s Manifesto</a> to talk about it in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_97-Network_Reliability_Engineering.mp3">Episode 97</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p><div class='jump-link'><a href='https://blog.ipspace.net/2019/01/network-reliability-engineering-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn summer 2018 Juniper started talking about another forward-looking concept: Network Reliability Engineering. We wanted to find out whether that&rsquo;s another unicorn driving DeLorean with flux capacitors or something more tangible, so we invited Matt Oswalt, the author of Network Reliability Engineer&rsquo;s Manifesto to talk about it in Episode 97 of Software Gone Wild.Read more &hellip;ipSpace.netIn summer 2018 Juniper started talking about another forward-looking concept: Network Reliability Engineering. We wanted to find out whether that&rsquo;s another unicorn driving DeLorean with flux capacitors or something more tangible, so we invited Matt Oswalt, the author of Network Reliability Engineer&rsquo;s Manifesto to talk about it in Episode 97 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationUsing Math in Networking on Software Gone Wildhttps://blog.ipspace.net/2018/12/using-math-in-networking-on-software/?utm_source=atom_feedpodcastSoftware Gone WildThu, 13 Dec 2018 08:54:00 +0100https://blog.ipspace.net/2018/12/using-math-in-networking-on-software/ <p>We love to claim that we’re <em>engineers </em>and yet sometimes we have no clue how technology we use really works and what its limitations are… quite often because understanding those limitations would involve diving pretty deep into math (<a href="https://www.ipspace.net/Network_Connectivity,_Graph_Theory,_and_Reliable_Network_Design">graphs</a>, <a href="https://www.ipspace.net/Queuing">queuing</a> and <a href="https://www.ipspace.net/Reliability_Theory:_Networking_through_a_Systems_Analysis_Lens">system reliability</a> quickly come to mind).<div class='jump-link'><a href='https://blog.ipspace.net/2018/12/using-math-in-networking-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWe love to claim that we’re engineers and yet sometimes we have no clue how technology we use really works and what its limitations are… quite often because understanding those limitations would involve diving pretty deep into math (graphs, queuing and system reliability quickly come to mind).Read more &hellip;ipSpace.netWe love to claim that we’re engineers and yet sometimes we have no clue how technology we use really works and what its limitations are… quite often because understanding those limitations would involve diving pretty deep into math (graphs, queuing and system reliability quickly come to mind).Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFrom Excel to Network Infrastructure as Code with Carl Buchmannhttps://blog.ipspace.net/2018/11/from-excel-to-network-infrastructure-as/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 23 Nov 2018 08:17:00 +0100https://blog.ipspace.net/2018/11/from-excel-to-network-infrastructure-as/<p>After a series of forward-looking podcast episodes we returned to real life and talked with <a href="https://www.linkedin.com/in/carl-buchmann-6b436727/">Carl Buchmann</a> about his network automation journey, from managing upgrades with Excel and using Excel as the configuration consistency tool to network-infrastructure-as-code concepts he <a href="/2018/02/automation-isnt-about-building-button/">described in a guest blog post in February 2018</a></p><div class='jump-link'><a href='https://blog.ipspace.net/2018/11/from-excel-to-network-infrastructure-as/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noAfter a series of forward-looking podcast episodes we returned to real life and talked with Carl Buchmann about his network automation journey, from managing upgrades with Excel and using Excel as the configuration consistency tool to network-infrastructure-as-code concepts he described in a guest blog post in February 2018Read more &hellip;ipSpace.netAfter a series of forward-looking podcast episodes we returned to real life and talked with Carl Buchmann about his network automation journey, from managing upgrades with Excel and using Excel as the configuration consistency tool to network-infrastructure-as-code concepts he described in a guest blog post in February 2018Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,Automationnetdev 0x12 Update on Software Gone Wildhttps://blog.ipspace.net/2018/10/netdev-0x12-update-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 26 Oct 2018 08:27:00 +0200https://blog.ipspace.net/2018/10/netdev-0x12-update-on-software-gone-wild/ <p><a name="_GoBack"></a>In recent years Linux networking started evolving at an amazing pace. You can hear about all the cool new stuff at <a href="https://netdevconf.org/">netdev conference</a>… or listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_94-NetDev_Update.mp3">Episode 94</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> to get a CliffsNotes version.</p> <p><a href="https://www.linkedin.com/in/roopa-prabhu-5678541/">Roopa Prabhu</a>, <a href="https://datatracker.ietf.org/person/Jamal%20Hadi%20Salim">Jamal Hadi Salim</a>, and <a href="https://www.linkedin.com/in/tom-herbert/">Tom Herbert</a> joined Nick Buraglio and myself and we couldn’t help diverging into the beauties of <em>tc</em>, and the intricacies of low-latency forwarding before coming back on track and started discussing cool stuff like:<div class='jump-link'><a href='https://blog.ipspace.net/2018/10/netdev-0x12-update-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn recent years Linux networking started evolving at an amazing pace. You can hear about all the cool new stuff at netdev conference… or listen to Episode 94 of Software Gone Wild to get a CliffsNotes version. Roopa Prabhu, Jamal Hadi Salim, and Tom Herbert joined Nick Buraglio and myself and we couldn’t help diverging into the beauties of tc, and the intricacies of low-latency forwarding before coming back on track and started discussing cool stuff like:Read more &hellip;ipSpace.netIn recent years Linux networking started evolving at an amazing pace. You can hear about all the cool new stuff at netdev conference… or listen to Episode 94 of Software Gone Wild to get a CliffsNotes version. Roopa Prabhu, Jamal Hadi Salim, and Tom Herbert joined Nick Buraglio and myself and we couldn’t help diverging into the beauties of tc, and the intricacies of low-latency forwarding before coming back on track and started discussing cool stuff like:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSmart or Dumb NICs on Software Gone Wildhttps://blog.ipspace.net/2018/09/smart-or-dumb-nics-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 21 Sep 2018 08:26:00 +0200https://blog.ipspace.net/2018/09/smart-or-dumb-nics-on-software-gone-wild/ <p>Hardware vendors are always making their silicon more complex and feature-rich. Is that a great idea or a disaster waiting to happen? We asked <a href="http://www.lukego.com/">Luke Gorrie</a>, the lead developer of <a href="https://github.com/snabbco/snabb">Snabb Switch</a> (an open-source user-land virtual switch written in Lua) about his opinions on the topic.</p> <p><strong>TL&amp;DL version</strong>: Give me a dumb NIC, software can do everything else.</p> <p>If you want to know more, listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_93-Smart_or_Dumb_NICs.mp3">Episode 93</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_93-Smart_or_Dumb_NICs.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noHardware vendors are always making their silicon more complex and feature-rich. Is that a great idea or a disaster waiting to happen? We asked Luke Gorrie, the lead developer of Snabb Switch (an open-source user-land virtual switch written in Lua) about his opinions on the topic. TL&amp;DL version: Give me a dumb NIC, software can do everything else. If you want to know more, listen to Episode 93 of Software Gone Wild. Listen to the podcastipSpace.netHardware vendors are always making their silicon more complex and feature-rich. Is that a great idea or a disaster waiting to happen? We asked Luke Gorrie, the lead developer of Snabb Switch (an open-source user-land virtual switch written in Lua) about his opinions on the topic. TL&amp;DL version: Give me a dumb NIC, software can do everything else. If you want to know more, listen to Episode 93 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationIs BGP Good Enough with Dinesh Dutt on Software Gone Wildhttps://blog.ipspace.net/2018/08/is-bgp-good-enough-with-dinesh-dutt-on/?utm_source=atom_feedpodcastdata centerBGPSoftware Gone WildFri, 31 Aug 2018 08:48:00 +0200https://blog.ipspace.net/2018/08/is-bgp-good-enough-with-dinesh-dutt-on/<p>In recent <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> episodes we explored emerging routing protocols trying to address the specific needs of highly-meshed data center fabrics &ndash; <a href="/2018/03/data-center-routing-with-rift-on/">RIFT</a> and <a href="/2018/04/openfabric-with-russ-white-on-software/">OpenFabric</a>. In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_92-Is_BGP_Good_Enough.mp3">Episode 92</a> with Dinesh Dutt we decided to revisit the basics trying to answer a seemingly simple question: do we really need new routing protocols?</p><div class='jump-link'><a href='https://blog.ipspace.net/2018/08/is-bgp-good-enough-with-dinesh-dutt-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn recent Software Gone Wild episodes we explored emerging routing protocols trying to address the specific needs of highly-meshed data center fabrics &ndash; RIFT and OpenFabric. In Episode 92 with Dinesh Dutt we decided to revisit the basics trying to answer a seemingly simple question: do we really need new routing protocols?Read more &hellip;ipSpace.netIn recent Software Gone Wild episodes we explored emerging routing protocols trying to address the specific needs of highly-meshed data center fabrics &ndash; RIFT and OpenFabric. In Episode 92 with Dinesh Dutt we decided to revisit the basics trying to answer a seemingly simple question: do we really need new routing protocols?Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSnabb Switch Update on Software Gone Wildhttps://blog.ipspace.net/2018/06/snabb-switch-update-on-software-gone/?utm_source=atom_feedpodcastswitchingSoftware Gone WildvirtualizationFri, 8 Jun 2018 08:26:00 +0200https://blog.ipspace.net/2018/06/snabb-switch-update-on-software-gone/ <p>In 2014, we did a series of podcasts on <a href="https://github.com/snabbco/snabb">Snabb Switch</a> (<a href="/2014/06/snabb-switch-and-nfv-on-openstack-in/">Snabb Switch and OpenStack</a>, <a href="/2014/09/snabb-switch-deep-dive-on-software-gone/">Deep Dive</a>), a software-only switch <a href="/2016/03/x86-based-switching-at-ludicrous-speed/">delivering 10-20 Gbps of forwarded bandwidth per x86 core</a>. In the meantime, Snabb community slowly expanded, optimized the switching code, <a href="/2016/12/snabb-switch-with-vmx-control-plane-on/">built a number of solutions</a> on top of the packet forwarding core, and even forked a just-in-time Lua compiler to get better performance.</p> <p>To find out the details, listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_91-Snabb_Update.mp3">Episode 91</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> in which <a href="http://www.ipspace.net/Expert:Luke_Gorrie">Luke Gorrie</a> explained how far <a href="https://github.com/snabbco/snabb">the Snabb project</a> has progressed in the last four years.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_91-Snabb_Update.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noIn 2014, we did a series of podcasts on Snabb Switch (Snabb Switch and OpenStack, Deep Dive), a software-only switch delivering 10-20 Gbps of forwarded bandwidth per x86 core. In the meantime, Snabb community slowly expanded, optimized the switching code, built a number of solutions on top of the packet forwarding core, and even forked a just-in-time Lua compiler to get better performance. To find out the details, listen to Episode 91 of Software Gone Wild in which Luke Gorrie explained how far the Snabb project has progressed in the last four years. Listen to the podcastipSpace.netIn 2014, we did a series of podcasts on Snabb Switch (Snabb Switch and OpenStack, Deep Dive), a software-only switch delivering 10-20 Gbps of forwarded bandwidth per x86 core. In the meantime, Snabb community slowly expanded, optimized the switching code, built a number of solutions on top of the packet forwarding core, and even forked a just-in-time Lua compiler to get better performance. To find out the details, listen to Episode 91 of Software Gone Wild in which Luke Gorrie explained how far the Snabb project has progressed in the last four years. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Automation with Nornir (formerly Brigade) on Software Gone Wildhttps://blog.ipspace.net/2018/05/network-automation-with-brigade-on/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 4 May 2018 08:46:00 +0200https://blog.ipspace.net/2018/05/network-automation-with-brigade-on/ <p>David Barroso was sick-and-tired of using <a href="https://en.wikipedia.org/wiki/ZX_Spectrum">ZX Spectrum</a> of Network Automation and decided to create an alternative with similar functionality but a proper programming language instead of YAML dictionaries masquerading as one. The result: <a href="https://github.com/nornir-automation/nornir">Nornir</a>, an interesting network automation tool formerly known as Brigade we discussed in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_90-Brigade.mp3">Episode 90</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2018/05/network-automation-with-brigade-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noDavid Barroso was sick-and-tired of using ZX Spectrum of Network Automation and decided to create an alternative with similar functionality but a proper programming language instead of YAML dictionaries masquerading as one. The result: Nornir, an interesting network automation tool formerly known as Brigade we discussed in Episode 90 of Software Gone Wild.Read more &hellip;ipSpace.netDavid Barroso was sick-and-tired of using ZX Spectrum of Network Automation and decided to create an alternative with similar functionality but a proper programming language instead of YAML dictionaries masquerading as one. The result: Nornir, an interesting network automation tool formerly known as Brigade we discussed in Episode 90 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenFabric with Russ White on Software Gone Wildhttps://blog.ipspace.net/2018/04/openfabric-with-russ-white-on-software/?utm_source=atom_feedpodcastdata centerfabricIP routingSoftware Gone WildFri, 20 Apr 2018 08:36:00 +0200https://blog.ipspace.net/2018/04/openfabric-with-russ-white-on-software/<p>Continuing the series of <a href="/2018/03/data-center-routing-with-rift-on/">data center routing protocol podcasts</a>, we sat down with Russ White (of the CCDE fame), author of another proposal: <a href="https://tools.ietf.org/html/draft-white-openfabric-05">OpenFabric</a>.</p> <p>As always, we started with the &ldquo;<em>what&rsquo;s wrong with what we have right now, like using BGP as a better IGP</em>&rdquo; question, resulting in &ldquo;<em>BGP is becoming the trash can of the Internet</em>&rdquo;.</p><div class='jump-link'><a href='https://blog.ipspace.net/2018/04/openfabric-with-russ-white-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noContinuing the series of data center routing protocol podcasts, we sat down with Russ White (of the CCDE fame), author of another proposal: OpenFabric. As always, we started with the &ldquo;what&rsquo;s wrong with what we have right now, like using BGP as a better IGP&rdquo; question, resulting in &ldquo;BGP is becoming the trash can of the Internet&rdquo;.Read more &hellip;ipSpace.netContinuing the series of data center routing protocol podcasts, we sat down with Russ White (of the CCDE fame), author of another proposal: OpenFabric. As always, we started with the &ldquo;what&rsquo;s wrong with what we have right now, like using BGP as a better IGP&rdquo; question, resulting in &ldquo;BGP is becoming the trash can of the Internet&rdquo;.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationData Center Routing with RIFT on Software Gone Wildhttps://blog.ipspace.net/2018/03/data-center-routing-with-rift-on/?utm_source=atom_feedpodcastdata centerIP routingSoftware Gone WildFri, 30 Mar 2018 09:33:00 +0200https://blog.ipspace.net/2018/03/data-center-routing-with-rift-on/<p>Years ago Petr Lapukhov decided that it&rsquo;s a waste of time to try to make OSPF or IS-IS work in large-scale data center leaf-and-spine fabrics and figured out how to <a href="/2016/02/using-bgp-in-data-center-fabrics/">use BGP as a better IGP</a>.</p> <p>In the meantime, old-time routing gurus started designing routing protocols targeting a specific environment: highly meshed leaf-and-spine fabrics. First in the list: Routing in Fat Trees (RIFT).</p><div class='jump-link'><a href='https://blog.ipspace.net/2018/03/data-center-routing-with-rift-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noYears ago Petr Lapukhov decided that it&rsquo;s a waste of time to try to make OSPF or IS-IS work in large-scale data center leaf-and-spine fabrics and figured out how to use BGP as a better IGP. In the meantime, old-time routing gurus started designing routing protocols targeting a specific environment: highly meshed leaf-and-spine fabrics. First in the list: Routing in Fat Trees (RIFT).Read more &hellip;ipSpace.netYears ago Petr Lapukhov decided that it&rsquo;s a waste of time to try to make OSPF or IS-IS work in large-scale data center leaf-and-spine fabrics and figured out how to use BGP as a better IGP. In the meantime, old-time routing gurus started designing routing protocols targeting a specific environment: highly meshed leaf-and-spine fabrics. First in the list: Routing in Fat Trees (RIFT).Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationLinux Interfaces on Software Gone Wildhttps://blog.ipspace.net/2018/03/linux-interfaces-on-software-gone-wild/?utm_source=atom_feedpodcastswitchingSoftware Gone WildFri, 9 Mar 2018 09:39:00 +0100https://blog.ipspace.net/2018/03/linux-interfaces-on-software-gone-wild/ <p>Continuing the <a href="/2018/01/packet-forwarding-on-linux-on-software/">Linux networking discussion we had in Episode 86</a>, we focused on Linux interfaces in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_87-Linux_Network_Interfaces.mp3">Episode 87</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> with Roopa Prabhu and David Ahern.</p> <p>We started with simple questions like “<em>what is an interface</em>” and “<em>how do they get such weird names in some Linux distributions</em>” which quickly turned into a complex discussion about kernel objects and <strong>udev</strong>, and details of implementing logical interfaces that are associated with ASIC front-panel physical ports.<div class='jump-link'><a href='https://blog.ipspace.net/2018/03/linux-interfaces-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noContinuing the Linux networking discussion we had in Episode 86, we focused on Linux interfaces in Episode 87 of Software Gone Wild with Roopa Prabhu and David Ahern. We started with simple questions like “what is an interface” and “how do they get such weird names in some Linux distributions” which quickly turned into a complex discussion about kernel objects and udev, and details of implementing logical interfaces that are associated with ASIC front-panel physical ports.Read more &hellip;ipSpace.netContinuing the Linux networking discussion we had in Episode 86, we focused on Linux interfaces in Episode 87 of Software Gone Wild with Roopa Prabhu and David Ahern. We started with simple questions like “what is an interface” and “how do they get such weird names in some Linux distributions” which quickly turned into a complex discussion about kernel objects and udev, and details of implementing logical interfaces that are associated with ASIC front-panel physical ports.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPacket Forwarding on Linux on Software Gone Wildhttps://blog.ipspace.net/2018/01/packet-forwarding-on-linux-on-software/?utm_source=atom_feedpodcastscalabilityIP routingSoftware Gone WildCumulus LinuxFri, 19 Jan 2018 08:20:00 +0100https://blog.ipspace.net/2018/01/packet-forwarding-on-linux-on-software/<p>Linux operating system is used as the foundation for numerous network operating systems including Arista EOS and Cumulus Linux. It provides most networking constructs we grew familiar with including interfaces, VLANs, routing tables, VRFs and contexts, but they behave slightly differently from what we&rsquo;re used to.</p> <p>In <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_86-Packet_Forwarding_on_Linux.mp3">Episode 86</a> Roopa Prabhu and David Ahern explained the fundamentals of packet forwarding on Linux, and the differences between Linux and more traditional network operating systems.</p><div class='jump-link'><a href='https://blog.ipspace.net/2018/01/packet-forwarding-on-linux-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noLinux operating system is used as the foundation for numerous network operating systems including Arista EOS and Cumulus Linux. It provides most networking constructs we grew familiar with including interfaces, VLANs, routing tables, VRFs and contexts, but they behave slightly differently from what we&rsquo;re used to. In Software Gone Wild Episode 86 Roopa Prabhu and David Ahern explained the fundamentals of packet forwarding on Linux, and the differences between Linux and more traditional network operating systems.Read more &hellip;ipSpace.netLinux operating system is used as the foundation for numerous network operating systems including Arista EOS and Cumulus Linux. It provides most networking constructs we grew familiar with including interfaces, VLANs, routing tables, VRFs and contexts, but they behave slightly differently from what we&rsquo;re used to. In Software Gone Wild Episode 86 Roopa Prabhu and David Ahern explained the fundamentals of packet forwarding on Linux, and the differences between Linux and more traditional network operating systems.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationHow Did NETCONF Start on Software Gone Wildhttps://blog.ipspace.net/2017/12/how-did-netconf-start-on-software-gone/?utm_source=atom_feedautomationNETCONFpodcastSoftware Gone WildFri, 1 Dec 2017 09:17:00 +0100https://blog.ipspace.net/2017/12/how-did-netconf-start-on-software-gone/ <p>A long while ago Marcel Wiget sent me an interesting email along the lines “<em>I think you should do a </em><a href="http://www.ipspace.net/Podcast/Software_Gone_Wild"><em>Software Gone Wild</em></a><em> podcast with </em><a href="https://www.linkedin.com/in/phil-shafer-b324bb86/"><em>Phil Shafer</em></a><em>, the granddaddy of NETCONF</em>”</p> <p>Not surprisingly, as we started discovering the history behind NETCONF we quickly figured out that all the API and automation hype being touted these days is nothing new – some engineers have been doing that stuff for almost 20 years.<div class='jump-link'><a href='https://blog.ipspace.net/2017/12/how-did-netconf-start-on-software-gone/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA long while ago Marcel Wiget sent me an interesting email along the lines “I think you should do a Software Gone Wild podcast with Phil Shafer, the granddaddy of NETCONF” Not surprisingly, as we started discovering the history behind NETCONF we quickly figured out that all the API and automation hype being touted these days is nothing new – some engineers have been doing that stuff for almost 20 years.Read more &hellip;ipSpace.netA long while ago Marcel Wiget sent me an interesting email along the lines “I think you should do a Software Gone Wild podcast with Phil Shafer, the granddaddy of NETCONF” Not surprisingly, as we started discovering the history behind NETCONF we quickly figured out that all the API and automation hype being touted these days is nothing new – some engineers have been doing that stuff for almost 20 years.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationEthernet History on Software Gone Wildhttps://blog.ipspace.net/2017/10/ethernet-history-on-software-gone-wild/?utm_source=atom_feedpodcastSoftware Gone WildLANFri, 27 Oct 2017 09:10:00 +0200https://blog.ipspace.net/2017/10/ethernet-history-on-software-gone-wild/ <p>During Cisco Live Berlin 2017 <a href="https://www.linkedin.com/in/petergjones/">Peter Jones</a> (chair of several IEEE task forces) and myself went on a journey through 40 years of Ethernet history (and Token Bus and a few other choice technologies).</p> <p>The sound quality is what you could expect from something recorded on a show floor with pigeons flying around, but I hope you’ll still enjoy our chat.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_84-Ethernet_History.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noDuring Cisco Live Berlin 2017 Peter Jones (chair of several IEEE task forces) and myself went on a journey through 40 years of Ethernet history (and Token Bus and a few other choice technologies). The sound quality is what you could expect from something recorded on a show floor with pigeons flying around, but I hope you’ll still enjoy our chat. Listen to the podcastipSpace.netDuring Cisco Live Berlin 2017 Peter Jones (chair of several IEEE task forces) and myself went on a journey through 40 years of Ethernet history (and Token Bus and a few other choice technologies). The sound quality is what you could expect from something recorded on a show floor with pigeons flying around, but I hope you’ll still enjoy our chat. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetworking Trends Discussion with Andrew Lerner and Simon Richard: Part 2https://blog.ipspace.net/2017/10/networking-trends-discussion-with/?utm_source=atom_feeddesignpodcastdata centerSoftware Gone WildFri, 6 Oct 2017 09:29:00 +0200https://blog.ipspace.net/2017/10/networking-trends-discussion-with/ <p>In June 2017, we concluded the <a href="http://www.ipspace.net/Building_Next-Generation_Data_Center">Building Next Generation Data Center</a> online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner.</p> <p>In the <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_83-Networking_Trends_with_Gartner_-_Part_2.mp3">second half of our discussion</a> (first half is <a href="/2017/09/networking-trends-discussion-with/">here</a>) we focused on these topics:<div class='jump-link'><a href='https://blog.ipspace.net/2017/10/networking-trends-discussion-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn June 2017, we concluded the Building Next Generation Data Center online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner. In the second half of our discussion (first half is here) we focused on these topics:Read more &hellip;ipSpace.netIn June 2017, we concluded the Building Next Generation Data Center online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner. In the second half of our discussion (first half is here) we focused on these topics:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSelf-Driving Networks with Kireeti Kompellahttps://blog.ipspace.net/2017/09/self-driving-networks-with-kireeti/?utm_source=atom_feedautomationpodcastSDNSoftware Gone WildFri, 22 Sep 2017 09:40:00 +0200https://blog.ipspace.net/2017/09/self-driving-networks-with-kireeti/ <p>A while ago I got a kind email from Kireeti Kompella, CTO @ Juniper Networks, saying “<em>A colleague sent me an email of yours regarding SDN, the trough of disillusionment, and the rise of automation. Here's a more dramatic view: the Self-Driving Network -- one whose operation is totally automated.</em>” </p> <p>Even though <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast focuses on practical ideas that you could deploy relatively soon in your network, we decided to make an exception and talk about (as one of my friends described it) a unicorn driving a flying DeLorean with a flux capacitor.<div class='jump-link'><a href='https://blog.ipspace.net/2017/09/self-driving-networks-with-kireeti/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago I got a kind email from Kireeti Kompella, CTO @ Juniper Networks, saying “A colleague sent me an email of yours regarding SDN, the trough of disillusionment, and the rise of automation. Here's a more dramatic view: the Self-Driving Network -- one whose operation is totally automated.” Even though Software Gone Wild podcast focuses on practical ideas that you could deploy relatively soon in your network, we decided to make an exception and talk about (as one of my friends described it) a unicorn driving a flying DeLorean with a flux capacitor.Read more &hellip;ipSpace.netA while ago I got a kind email from Kireeti Kompella, CTO @ Juniper Networks, saying “A colleague sent me an email of yours regarding SDN, the trough of disillusionment, and the rise of automation. Here's a more dramatic view: the Self-Driving Network -- one whose operation is totally automated.” Even though Software Gone Wild podcast focuses on practical ideas that you could deploy relatively soon in your network, we decided to make an exception and talk about (as one of my friends described it) a unicorn driving a flying DeLorean with a flux capacitor.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetworking Trends Discussion with Andrew Lerner and Simon Richardhttps://blog.ipspace.net/2017/09/networking-trends-discussion-with/?utm_source=atom_feedpodcastdata centerSoftware Gone WildFri, 8 Sep 2017 09:38:00 +0200https://blog.ipspace.net/2017/09/networking-trends-discussion-with/ <p>In June 2017, we concluded the <a href="http://www.ipspace.net/Building_Next-Generation_Data_Center">Building Next Generation Data Center</a> online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner. </p> <p>During the first 45 minutes, we <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_81-Networking_Trends_with_Gartner_-_Part_1.mp3">covered a lot of topics including</a>:<div class='jump-link'><a href='https://blog.ipspace.net/2017/09/networking-trends-discussion-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn June 2017, we concluded the Building Next Generation Data Center online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner. During the first 45 minutes, we covered a lot of topics including:Read more &hellip;ipSpace.netIn June 2017, we concluded the Building Next Generation Data Center online course with a roundtable discussion with Andrew Lerner, Research Vice President, Networking, and Simon Richard, Research Director, Data Center Networking @ Gartner. During the first 45 minutes, we covered a lot of topics including:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPacket Fabric on Software Gone Wildhttps://blog.ipspace.net/2017/06/packet-fabric-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 9 Jun 2017 10:33:00 +0200https://blog.ipspace.net/2017/06/packet-fabric-on-software-gone-wild/ <p><a name="_GoBack"></a>Imagine a service provider that allows you to provision 100GE point-to-point circuit between any two of their POPs through a web site and delivers in seconds (assuming you’ve already solved the physical connectivity problem). That’s the whole idea of SDN, right? Only not so many providers got there yet.<div class='jump-link'><a href='https://blog.ipspace.net/2017/06/packet-fabric-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noImagine a service provider that allows you to provision 100GE point-to-point circuit between any two of their POPs through a web site and delivers in seconds (assuming you’ve already solved the physical connectivity problem). That’s the whole idea of SDN, right? Only not so many providers got there yet.Read more &hellip;ipSpace.netImagine a service provider that allows you to provision 100GE point-to-point circuit between any two of their POPs through a web site and delivers in seconds (assuming you’ve already solved the physical connectivity problem). That’s the whole idea of SDN, right? Only not so many providers got there yet.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationStart Using OpenConfig with NAPALM on Software Gone Wildhttps://blog.ipspace.net/2017/05/start-using-openconfig-with-napalm-on/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 26 May 2017 10:42:00 +0200https://blog.ipspace.net/2017/05/start-using-openconfig-with-napalm-on/ <p><a href="/2017/02/openconfig-from-basics-to/">OpenConfig</a> sounds like a great idea, but unfortunately only a <a href="/2016/09/juniper-is-serious-about-openconfig-and/">few vendors support it</a>, and it doesn’t run on all their platforms, and you need the latest-and-greatest software release. Not exactly a set of conditions that would encourage widespread adoption.</p> <p>Things might change with the OpenConfig data models supported in NAPALM. Imagine you could parse router configurations or show printouts into OpenConfig data structures, or use OpenConfig to configure Cisco IOS routers running a decade old software.<div class='jump-link'><a href='https://blog.ipspace.net/2017/05/start-using-openconfig-with-napalm-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noOpenConfig sounds like a great idea, but unfortunately only a few vendors support it, and it doesn’t run on all their platforms, and you need the latest-and-greatest software release. Not exactly a set of conditions that would encourage widespread adoption. Things might change with the OpenConfig data models supported in NAPALM. Imagine you could parse router configurations or show printouts into OpenConfig data structures, or use OpenConfig to configure Cisco IOS routers running a decade old software.Read more &hellip;ipSpace.netOpenConfig sounds like a great idea, but unfortunately only a few vendors support it, and it doesn’t run on all their platforms, and you need the latest-and-greatest software release. Not exactly a set of conditions that would encourage widespread adoption. Things might change with the OpenConfig data models supported in NAPALM. Imagine you could parse router configurations or show printouts into OpenConfig data structures, or use OpenConfig to configure Cisco IOS routers running a decade old software.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Testing on Software Gone Wildhttps://blog.ipspace.net/2017/05/network-testing-on-software-gone-wild/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 12 May 2017 12:45:00 +0200https://blog.ipspace.net/2017/05/network-testing-on-software-gone-wild/<p>Network automation and orchestration is a great idea&hellip; but how do you verify that what your automation script wants to do won&rsquo;t break the network? In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_78-Network_Testing.mp3">Episode 78</a> of Software Gone Wild we discussed the intricacies of testing network automation solutions with <a href="https://twitter.com/plajjan">Kristian Larsson</a> (developer of <a href="/2013/11/terastream-part-2-lightweight-4over6/">Terastream</a> orchestration softare) and <a href="http://www.ipspace.net/Author:David_Barroso">David Barroso</a> of the <a href="/2015/06/napalm-integrating-ansible-with-network/">NAPALM</a> and <a href="/2015/10/sdn-internet-router-is-in-production-on/">SDN Internet Router</a> fame.</p><div class='jump-link'><a href='https://blog.ipspace.net/2017/05/network-testing-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noNetwork automation and orchestration is a great idea&hellip; but how do you verify that what your automation script wants to do won&rsquo;t break the network? In Episode 78 of Software Gone Wild we discussed the intricacies of testing network automation solutions with Kristian Larsson (developer of Terastream orchestration softare) and David Barroso of the NAPALM and SDN Internet Router fame.Read more &hellip;ipSpace.netNetwork automation and orchestration is a great idea&hellip; but how do you verify that what your automation script wants to do won&rsquo;t break the network? In Episode 78 of Software Gone Wild we discussed the intricacies of testing network automation solutions with Kristian Larsson (developer of Terastream orchestration softare) and David Barroso of the NAPALM and SDN Internet Router fame.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSalt and SaltStack on Software Gone Wildhttps://blog.ipspace.net/2017/04/salt-and-saltstack-on-software-gone-wild/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 28 Apr 2017 10:07:00 +0200https://blog.ipspace.net/2017/04/salt-and-saltstack-on-software-gone-wild/ <p>Ansible, Puppet, Chef, Git, GitLab… the <a href="http://www.ipspace.net/Network_Automation_Tools">list of tools you can supposedly use to automate your network</a> is endless, and there’s a new kid on the block every few months. </p> <p>In Episode 77 of Software Gone Wild we <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_77-Salt_and_SaltStack.mp3">explored Salt, its internal architecture, and how you can use it</a> with <a href="http://www.mirceaulinic.net">Mircea Ulinic</a>, a happy Salt user/contributor working for Cloudflare, and <a href="https://twitter.com/whiteinge">Seth House</a>, developer @ SaltStack, the company behind Salt.<div class='jump-link'><a href='https://blog.ipspace.net/2017/04/salt-and-saltstack-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noAnsible, Puppet, Chef, Git, GitLab… the list of tools you can supposedly use to automate your network is endless, and there’s a new kid on the block every few months. In Episode 77 of Software Gone Wild we explored Salt, its internal architecture, and how you can use it with Mircea Ulinic, a happy Salt user/contributor working for Cloudflare, and Seth House, developer @ SaltStack, the company behind Salt.Read more &hellip;ipSpace.netAnsible, Puppet, Chef, Git, GitLab… the list of tools you can supposedly use to automate your network is endless, and there’s a new kid on the block every few months. In Episode 77 of Software Gone Wild we explored Salt, its internal architecture, and how you can use it with Mircea Ulinic, a happy Salt user/contributor working for Cloudflare, and Seth House, developer @ SaltStack, the company behind Salt.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationProgrammable ASICs on Software Gone Wildhttps://blog.ipspace.net/2017/04/programmable-asics-on-software-gone-wild/?utm_source=atom_feedpodcastswitchingSoftware Gone WildFri, 14 Apr 2017 08:24:00 +0200https://blog.ipspace.net/2017/04/programmable-asics-on-software-gone-wild/ <p>During Cisco Live Europe 2017 (where I got thanks to the <a href="http://techfieldday.com/event/cleur17/">Tech Field Day crew kindly inviting me</a>) I had a nice chat with Peter Jones, principal engineer @ Cisco Systems. We started with a totally tangential discussion on why startups fail, and quickly got back to flexible hardware and why one would want to have it in a switch.<div class='jump-link'><a href='https://blog.ipspace.net/2017/04/programmable-asics-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noDuring Cisco Live Europe 2017 (where I got thanks to the Tech Field Day crew kindly inviting me) I had a nice chat with Peter Jones, principal engineer @ Cisco Systems. We started with a totally tangential discussion on why startups fail, and quickly got back to flexible hardware and why one would want to have it in a switch.Read more &hellip;ipSpace.netDuring Cisco Live Europe 2017 (where I got thanks to the Tech Field Day crew kindly inviting me) I had a nice chat with Peter Jones, principal engineer @ Cisco Systems. We started with a totally tangential discussion on why startups fail, and quickly got back to flexible hardware and why one would want to have it in a switch.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNETCONF on Cisco Campus Switches on Software Gone Wildhttps://blog.ipspace.net/2017/03/netconf-on-cisco-campus-switches-on/?utm_source=atom_feedautomationNETCONFpodcastSoftware Gone WildFri, 31 Mar 2017 13:00:00 +0200https://blog.ipspace.net/2017/03/netconf-on-cisco-campus-switches-on/ <p>During Cisco Live Europe (huge thanks to <a href="http://techfieldday.com/event/cleur17/">Tech Field Day crew for bringing me there</a>) I had a chat with Jeff McLaughlin about NETCONF support on Cisco IOS XE, in particular on the campus switches.</p> <p>We started with the obvious question “<em>why would someone want to have NETCONF on a campus switch</em>”, continued with “<em>why would you use NETCONF and not REST API</em>”, and diverted into “<em>who loves regular expressions</em>”. Teasing aside, we discussed:<div class='jump-link'><a href='https://blog.ipspace.net/2017/03/netconf-on-cisco-campus-switches-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noDuring Cisco Live Europe (huge thanks to Tech Field Day crew for bringing me there) I had a chat with Jeff McLaughlin about NETCONF support on Cisco IOS XE, in particular on the campus switches. We started with the obvious question “why would someone want to have NETCONF on a campus switch”, continued with “why would you use NETCONF and not REST API”, and diverted into “who loves regular expressions”. Teasing aside, we discussed:Read more &hellip;ipSpace.netDuring Cisco Live Europe (huge thanks to Tech Field Day crew for bringing me there) I had a chat with Jeff McLaughlin about NETCONF support on Cisco IOS XE, in particular on the campus switches. We started with the obvious question “why would someone want to have NETCONF on a campus switch”, continued with “why would you use NETCONF and not REST API”, and diverted into “who loves regular expressions”. Teasing aside, we discussed:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTCP in the Data Center and Beyond on Software Gone Wildhttps://blog.ipspace.net/2017/03/tcp-in-data-center-and-beyond-on/?utm_source=atom_feedpodcastTCPdata centerSoftware Gone WildFri, 17 Mar 2017 08:39:00 +0100https://blog.ipspace.net/2017/03/tcp-in-data-center-and-beyond-on/ <p>In autumn 2016 I embarked on a quest to figure out how TCP really works and whether big buffers in data center switches make sense. One of the obvious stops on this journey was a chat with Thomas Graf, Linux Core Team member and a founding member of the <a href="/2016/10/fast-linux-packet-forwarding-with/">Cilium project</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2017/03/tcp-in-data-center-and-beyond-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn autumn 2016 I embarked on a quest to figure out how TCP really works and whether big buffers in data center switches make sense. One of the obvious stops on this journey was a chat with Thomas Graf, Linux Core Team member and a founding member of the Cilium project.Read more &hellip;ipSpace.netIn autumn 2016 I embarked on a quest to figure out how TCP really works and whether big buffers in data center switches make sense. One of the obvious stops on this journey was a chat with Thomas Graf, Linux Core Team member and a founding member of the Cilium project.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationCloudScale ASICs on Software Gone Wildhttps://blog.ipspace.net/2017/03/cloudscale-asics-on-software-gone-wild/?utm_source=atom_feedpodcastswitchingdata centerSoftware Gone WildFri, 3 Mar 2017 14:09:00 +0100https://blog.ipspace.net/2017/03/cloudscale-asics-on-software-gone-wild/ <p><a name="_GoBack"></a>Last year Cisco launched a new series of Nexus 9000 switches with table sizes that didn’t match any of the known merchant silicon ASICs. It was obvious they had to be using their own silicon – the CloudScale ASIC. Lukas Krattiger was kind enough to describe some of the details last November, resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_73-CloudScale_ASICs.mp3">Episode 73</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <p>For even more details, watch the <a href="https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=94032">Cisco Nexus 9000 Architecture</a> Cisco Live presentation.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_73-CloudScale_ASICs.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noLast year Cisco launched a new series of Nexus 9000 switches with table sizes that didn’t match any of the known merchant silicon ASICs. It was obvious they had to be using their own silicon – the CloudScale ASIC. Lukas Krattiger was kind enough to describe some of the details last November, resulting in Episode 73 of Software Gone Wild. For even more details, watch the Cisco Nexus 9000 Architecture Cisco Live presentation. Listen to the podcastipSpace.netLast year Cisco launched a new series of Nexus 9000 switches with table sizes that didn’t match any of the known merchant silicon ASICs. It was obvious they had to be using their own silicon – the CloudScale ASIC. Lukas Krattiger was kind enough to describe some of the details last November, resulting in Episode 73 of Software Gone Wild. For even more details, watch the Cisco Nexus 9000 Architecture Cisco Live presentation. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenConfig: From Basics to Implementationshttps://blog.ipspace.net/2017/02/openconfig-from-basics-to/?utm_source=atom_feedautomationpodcastSoftware Gone WildJunosFri, 17 Feb 2017 08:24:00 +0100https://blog.ipspace.net/2017/02/openconfig-from-basics-to/ <p>In 2013, large-scale cloud providers and ISPs decided they had enough of the glacial IETF process of generating YANG models used to describe device configuration and started <a href="http://www.openconfig.net/">OpenConfig</a> – a customer-only initiative that quickly created data models covering typical use cases of the founding members (aka “What Does Google Need”).<div class='jump-link'><a href='https://blog.ipspace.net/2017/02/openconfig-from-basics-to/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn 2013, large-scale cloud providers and ISPs decided they had enough of the glacial IETF process of generating YANG models used to describe device configuration and started OpenConfig – a customer-only initiative that quickly created data models covering typical use cases of the founding members (aka “What Does Google Need”).Read more &hellip;ipSpace.netIn 2013, large-scale cloud providers and ISPs decided they had enough of the glacial IETF process of generating YANG models used to describe device configuration and started OpenConfig – a customer-only initiative that quickly created data models covering typical use cases of the founding members (aka “What Does Google Need”).Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationLinux Networking Update from NetDev Conference on Software Gone Wildhttps://blog.ipspace.net/2017/02/linux-networking-update-from-netdev/?utm_source=atom_feedpodcastNFVSoftware Gone WildFri, 3 Feb 2017 09:22:00 +0100https://blog.ipspace.net/2017/02/linux-networking-update-from-netdev/ <p>When I <a href="/2016/10/fast-linux-packet-forwarding-with/">recorded the first podcast with Thomas Graf</a> we both found it so much fun that we decided to do it again. Thomas had attended the <a href="http://netdevconf.org/1.2/">NetDev 1.2 conference</a> so when we met in November 2016 we warmed up with <em>What’s NetDev </em>and then started discussing the hot new networking stuff being added to Linux kernel:<div class='jump-link'><a href='https://blog.ipspace.net/2017/02/linux-networking-update-from-netdev/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhen I recorded the first podcast with Thomas Graf we both found it so much fun that we decided to do it again. Thomas had attended the NetDev 1.2 conference so when we met in November 2016 we warmed up with What’s NetDev and then started discussing the hot new networking stuff being added to Linux kernel:Read more &hellip;ipSpace.netWhen I recorded the first podcast with Thomas Graf we both found it so much fun that we decided to do it again. Thomas had attended the NetDev 1.2 conference so when we met in November 2016 we warmed up with What’s NetDev and then started discussing the hot new networking stuff being added to Linux kernel:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTo Drop or To Delay, That’s the Question on Software Gone Wildhttps://blog.ipspace.net/2017/01/to-drop-or-to-delay-thats-question-on/?utm_source=atom_feedpodcastQoSSoftware Gone WildFri, 27 Jan 2017 09:02:00 +0100https://blog.ipspace.net/2017/01/to-drop-or-to-delay-thats-question-on/<p>A while ago I decided it's time to figure out <a href="/2016/09/policing-or-shaping-it-depends/">whether it's better to drop or to delay TCP packets</a>, and quickly figured out you get 12 opinions (usually with no real arguments supporting them) if you ask 10 people. Fortunately, I know someone who deals with TCP performance for living, and <a href="https://www.snellman.net/blog/">Juho Snellman</a> was kind enough to agree to record another podcast.</p> <div class="update"> Update 2017-03-31: Added <em>More information</em> section </div><div class='jump-link'><a href='https://blog.ipspace.net/2017/01/to-drop-or-to-delay-thats-question-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago I decided it's time to figure out whether it's better to drop or to delay TCP packets, and quickly figured out you get 12 opinions (usually with no real arguments supporting them) if you ask 10 people. Fortunately, I know someone who deals with TCP performance for living, and Juho Snellman was kind enough to agree to record another podcast. Update 2017-03-31: Added More information section Read more &hellip;ipSpace.netA while ago I decided it's time to figure out whether it's better to drop or to delay TCP packets, and quickly figured out you get 12 opinions (usually with no real arguments supporting them) if you ask 10 people. Fortunately, I know someone who deals with TCP performance for living, and Juho Snellman was kind enough to agree to record another podcast. Update 2017-03-31: Added More information section Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationVXLAN Ping and Traceroutehttps://blog.ipspace.net/2017/01/vxlan-ping-and-traceroute/?utm_source=atom_feedVXLANpodcastSoftware Gone WildFri, 13 Jan 2017 12:58:00 +0100https://blog.ipspace.net/2017/01/vxlan-ping-and-traceroute/ <p><a name="_GoBack"></a>From the moment <a href="/2011/08/finally-mac-over-ip-based-vcloud/">Cisco and VMware announced VXLAN</a> some networking engineers complained that they'd lose visibility into the end-to-end path. It took a long while, but finally the troubleshooting tools started appearing in VXLAN environment: NVO3 working group defined Fault Managemnet framework for overlay networks and Cisco implemented at least parts of it in recent Nexus OS releases.</p> <p>You'll find more details in <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_69-VXLAN_Telemetry.mp3">Episode 69</a> recorded with <a href="https://www.ipspace.net/Author:Lukas_Krattiger">Lukas Krattiger</a> in November 2016 (you can also watch <a href="http://www.ipspace.net/VXLAN_Technical_Deep_Dive">VXLAN Technical Deep Dive</a> webinar to learn more about VXLAN).</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_69-VXLAN_Telemetry.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noFrom the moment Cisco and VMware announced VXLAN some networking engineers complained that they'd lose visibility into the end-to-end path. It took a long while, but finally the troubleshooting tools started appearing in VXLAN environment: NVO3 working group defined Fault Managemnet framework for overlay networks and Cisco implemented at least parts of it in recent Nexus OS releases. You'll find more details in Software Gone Wild Episode 69 recorded with Lukas Krattiger in November 2016 (you can also watch VXLAN Technical Deep Dive webinar to learn more about VXLAN). Listen to the podcastipSpace.netFrom the moment Cisco and VMware announced VXLAN some networking engineers complained that they'd lose visibility into the end-to-end path. It took a long while, but finally the troubleshooting tools started appearing in VXLAN environment: NVO3 working group defined Fault Managemnet framework for overlay networks and Cisco implemented at least parts of it in recent Nexus OS releases. You'll find more details in Software Gone Wild Episode 69 recorded with Lukas Krattiger in November 2016 (you can also watch VXLAN Technical Deep Dive webinar to learn more about VXLAN). Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSnabb Switch with vMX Control Plane on Software Gone Wildhttps://blog.ipspace.net/2016/12/snabb-switch-with-vmx-control-plane-on/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 9 Dec 2016 07:52:00 +0100https://blog.ipspace.net/2016/12/snabb-switch-with-vmx-control-plane-on/ <p>In Software Gone Wild Episode 52 <a href="/2016/03/x86-based-switching-at-ludicrous-speed/">Katerina Barone-Adesi explained how Igalia implemented 4-over-6 tunnel termination (lwAFTR) with Snabb Switch</a>. Their solution focused on very fast data plane and had no real control plane.</p> <p>No problem – there are plenty of stable control planes on the market, all we need is some glue.<div class='jump-link'><a href='https://blog.ipspace.net/2016/12/snabb-switch-with-vmx-control-plane-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIn Software Gone Wild Episode 52 Katerina Barone-Adesi explained how Igalia implemented 4-over-6 tunnel termination (lwAFTR) with Snabb Switch. Their solution focused on very fast data plane and had no real control plane. No problem – there are plenty of stable control planes on the market, all we need is some glue.Read more &hellip;ipSpace.netIn Software Gone Wild Episode 52 Katerina Barone-Adesi explained how Igalia implemented 4-over-6 tunnel termination (lwAFTR) with Snabb Switch. Their solution focused on very fast data plane and had no real control plane. No problem – there are plenty of stable control planes on the market, all we need is some glue.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationStackStorm 101 on Software Gone Wildhttps://blog.ipspace.net/2016/11/stackstorm-101-on-software-gone-wild/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 25 Nov 2016 09:34:00 +0100https://blog.ipspace.net/2016/11/stackstorm-101-on-software-gone-wild/ <p><a name="_GoBack"></a>A few weeks ago Matt Oswalt wrote an <a href="https://keepingitclassless.net/2016/10/principles-of-automation/">interesting blog post on principles of automation</a>, and we quickly agreed it’s a nice starting point for a podcast episode. </p> <p>In the meantime Matt moved to <a href="https://stackstorm.com/">StackStorm</a> team so that became the second focus of our chat… and then we figured out it would be great to bring in Matt Stone (the hero of <a href="/2014/10/cumulus-linux-in-real-life-on-software/">Episode 13</a>).<div class='jump-link'><a href='https://blog.ipspace.net/2016/11/stackstorm-101-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA few weeks ago Matt Oswalt wrote an interesting blog post on principles of automation, and we quickly agreed it’s a nice starting point for a podcast episode. In the meantime Matt moved to StackStorm team so that became the second focus of our chat… and then we figured out it would be great to bring in Matt Stone (the hero of Episode 13).Read more &hellip;ipSpace.netA few weeks ago Matt Oswalt wrote an interesting blog post on principles of automation, and we quickly agreed it’s a nice starting point for a podcast episode. In the meantime Matt moved to StackStorm team so that became the second focus of our chat… and then we figured out it would be great to bring in Matt Stone (the hero of Episode 13).Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBecoming a Programmer on Software Gone Wildhttps://blog.ipspace.net/2016/11/becoming-programmer-on-software-gone/?utm_source=atom_feedpodcastSoftware Gone WildFri, 11 Nov 2016 08:54:00 +0100https://blog.ipspace.net/2016/11/becoming-programmer-on-software-gone/ <p><a name="_GoBack"></a>During our <a href="/2016/08/software-defined-navel-gazing/">summer team-building podcast</a> we agreed it would be fun to record a few episodes along the “<em>how do I become a programmer</em>” theme and figured out that Elisa Jasinska would be a perfect first candidate.</p> <p>A few weeks ago we finally got together and started our chat with campfire stories remembering how we got started with networking and programming.<div class='jump-link'><a href='https://blog.ipspace.net/2016/11/becoming-programmer-on-software-gone/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noDuring our summer team-building podcast we agreed it would be fun to record a few episodes along the “how do I become a programmer” theme and figured out that Elisa Jasinska would be a perfect first candidate. A few weeks ago we finally got together and started our chat with campfire stories remembering how we got started with networking and programming.Read more &hellip;ipSpace.netDuring our summer team-building podcast we agreed it would be fun to record a few episodes along the “how do I become a programmer” theme and figured out that Elisa Jasinska would be a perfect first candidate. A few weeks ago we finally got together and started our chat with campfire stories remembering how we got started with networking and programming.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNAPALM Update on Software Gone Wildhttps://blog.ipspace.net/2016/10/napalm-update-on-software-gone-wild/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 28 Oct 2016 07:41:00 +0200https://blog.ipspace.net/2016/10/napalm-update-on-software-gone-wild/ <p><a name="_GoBack"></a>We did a <a href="/2015/06/napalm-integrating-ansible-with-network/">podcast describing NAPALM</a>, an open-source multi-vendor abstraction library, a while ago, and as the project made significant progress in the meantime, it was time for a short update.</p> <p>NAPALM started as a library that <strong>abstracted the intricacies of network device configuration management</strong>. Initially it supported configuration replace and merge; in the meantime, they added support for diffs and rollbacks<div class='jump-link'><a href='https://blog.ipspace.net/2016/10/napalm-update-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWe did a podcast describing NAPALM, an open-source multi-vendor abstraction library, a while ago, and as the project made significant progress in the meantime, it was time for a short update. NAPALM started as a library that abstracted the intricacies of network device configuration management. Initially it supported configuration replace and merge; in the meantime, they added support for diffs and rollbacksRead more &hellip;ipSpace.netWe did a podcast describing NAPALM, an open-source multi-vendor abstraction library, a while ago, and as the project made significant progress in the meantime, it was time for a short update. NAPALM started as a library that abstracted the intricacies of network device configuration management. Initially it supported configuration replace and merge; in the meantime, they added support for diffs and rollbacksRead more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFast Linux Packet Forwarding with Thomas Graf on Software Gone Wildhttps://blog.ipspace.net/2016/10/fast-linux-packet-forwarding-with/?utm_source=atom_feedpodcastswitchingSoftware Gone WildperformancevirtualizationFri, 14 Oct 2016 07:22:00 +0200https://blog.ipspace.net/2016/10/fast-linux-packet-forwarding-with/ <p>We did several podcasts describing how one could get stellar packet forwarding performance on x86 servers reimplementing the whole forwarding stack outside of kernel (<a href="/2014/09/snabb-switch-deep-dive-on-software-gone/">Snabb Switch</a>) or bypassing the Linux kernel and moving the packet processing into userspace (<a href="/2015/04/pfring-deep-dive-with-luca-deri-on/">PF_Ring</a>). </p> <p>Now let’s see if it’s possible to improve the Linux kernel forwarding performance. <a href="https://www.linkedin.com/in/thomas-graf-73104547">Thomas Graf</a>, one of the authors of <a href="https://github.com/cilium/cilium">Cilium</a> claims it can be done and explained the intricate details in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_64-Cilium_with_Thomas_Graf.mp3">Episode 64</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2016/10/fast-linux-packet-forwarding-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWe did several podcasts describing how one could get stellar packet forwarding performance on x86 servers reimplementing the whole forwarding stack outside of kernel (Snabb Switch) or bypassing the Linux kernel and moving the packet processing into userspace (PF_Ring). Now let’s see if it’s possible to improve the Linux kernel forwarding performance. Thomas Graf, one of the authors of Cilium claims it can be done and explained the intricate details in Episode 64 of Software Gone Wild.Read more &hellip;ipSpace.netWe did several podcasts describing how one could get stellar packet forwarding performance on x86 servers reimplementing the whole forwarding stack outside of kernel (Snabb Switch) or bypassing the Linux kernel and moving the packet processing into userspace (PF_Ring). Now let’s see if it’s possible to improve the Linux kernel forwarding performance. Thomas Graf, one of the authors of Cilium claims it can be done and explained the intricate details in Episode 64 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationDistributed On-Demand Network Testing (ToDD) with Matt Oswalthttps://blog.ipspace.net/2016/09/distributed-on-demand-network-testing/?utm_source=atom_feedautomationpodcastSoftware Gone WildFri, 30 Sep 2016 07:56:00 +0200https://blog.ipspace.net/2016/09/distributed-on-demand-network-testing/<p>In March 2016 my friend Matt Oswalt announced a <a href="https://keepingitclassless.net/2016/03/test-driven-network-automation/">distributed network testing framework</a> that he used for validation in his network automation / continuous integration projects. Initial tests included ping and DNS probes, and he <a href="https://keepingitclassless.net/2016/05/introducing-http-testing-todd/">added HTTP testing</a> in May 2016.</p> <p>The project continues to grow (and already got <a href="https://github.com/toddproject">its own Github</a> and <a href="https://todd.readthedocs.io/en/latest/">documentation</a> page) and Matt was kind enough to share the news and future plans in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_63-ToDD.mp3">Episode 63</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <p>To ask questions about the project, join the <a href="https://networktocode.slack.com/messages/todd/">Todd channel on networktocode Slack team</a> (self-registration at <a href="http://slack.networktocode.com/">slack.networktocode.com</a>)</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_63-ToDD.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noIn March 2016 my friend Matt Oswalt announced a distributed network testing framework that he used for validation in his network automation / continuous integration projects. Initial tests included ping and DNS probes, and he added HTTP testing in May 2016. The project continues to grow (and already got its own Github and documentation page) and Matt was kind enough to share the news and future plans in Episode 63 of Software Gone Wild. To ask questions about the project, join the Todd channel on networktocode Slack team (self-registration at slack.networktocode.com) Listen to the podcastipSpace.netIn March 2016 my friend Matt Oswalt announced a distributed network testing framework that he used for validation in his network automation / continuous integration projects. Initial tests included ping and DNS probes, and he added HTTP testing in May 2016. The project continues to grow (and already got its own Github and documentation page) and Matt was kind enough to share the news and future plans in Episode 63 of Software Gone Wild. To ask questions about the project, join the Todd channel on networktocode Slack team (self-registration at slack.networktocode.com) Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationWhitebox Switching at LinkedIn with Russ White on Software Gone Wildhttps://blog.ipspace.net/2016/09/whitebox-switching-at-linkedin-with/?utm_source=atom_feedpodcastswitchingdata centerSoftware Gone WildFri, 16 Sep 2016 08:09:00 +0200https://blog.ipspace.net/2016/09/whitebox-switching-at-linkedin-with/ <p><a name="_GoBack"></a>When LinkedIn announced their <a href="https://engineering.linkedin.com/blog/2016/02/falco-decoupling-switching-hardware-and-software-pigeon">Project Falco</a> I knew exactly what one of my future <a href="https://engineering.linkedin.com/blog/2016/02/falco-decoupling-switching-hardware-and-software-pigeon">Software Gone Wild</a> podcasts would be: a chat with <a href="https://www.linkedin.com/in/riw777">Russ White</a> (Mr. CCDE, now network architect @ LinkedIn).</p> <p>It took us a long while (and then the summer break intervened) but I finally got it published: <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_62-Whitebox_Switching_at_LinkedIn.mp3">Episode 62</a> is waiting for you.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_62-Whitebox_Switching_at_LinkedIn.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noWhen LinkedIn announced their Project Falco I knew exactly what one of my future Software Gone Wild podcasts would be: a chat with Russ White (Mr. CCDE, now network architect @ LinkedIn). It took us a long while (and then the summer break intervened) but I finally got it published: Episode 62 is waiting for you. Listen to the podcastipSpace.netWhen LinkedIn announced their Project Falco I knew exactly what one of my future Software Gone Wild podcasts would be: a chat with Russ White (Mr. CCDE, now network architect @ LinkedIn). It took us a long while (and then the summer break intervened) but I finally got it published: Episode 62 is waiting for you. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenStack on VMware NSX on Software Gone Wildhttps://blog.ipspace.net/2016/09/openstack-on-vmware-nsx-on-software/?utm_source=atom_feedpodcastcloudNSXSoftware Gone WildvirtualizationThu, 8 Sep 2016 13:55:00 +0200https://blog.ipspace.net/2016/09/openstack-on-vmware-nsx-on-software/ <p><a name="_GoBack"></a>Does it make sense to run OpenStack on top of VMware infrastructure? How well does NSX work as a Neutron plug-in? <a href="https://www.linkedin.com/in/nsxmarcos">Marcos Hernandez</a> answered these questions (and a lot of others) in the <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_61-VMware_NSX_on_OpenStack.mp3">Episode 61</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> (admittedly after a short marketing pitch in the first 10 minutes).</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_61-VMware_NSX_on_OpenStack.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noDoes it make sense to run OpenStack on top of VMware infrastructure? How well does NSX work as a Neutron plug-in? Marcos Hernandez answered these questions (and a lot of others) in the Episode 61 of Software Gone Wild (admittedly after a short marketing pitch in the first 10 minutes). Listen to the podcastipSpace.netDoes it make sense to run OpenStack on top of VMware infrastructure? How well does NSX work as a Neutron plug-in? Marcos Hernandez answered these questions (and a lot of others) in the Episode 61 of Software Gone Wild (admittedly after a short marketing pitch in the first 10 minutes). Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSoftware-Defined Navel Gazinghttps://blog.ipspace.net/2016/08/software-defined-navel-gazing/?utm_source=atom_feedpodcastSoftware Gone WildFri, 26 Aug 2016 13:17:00 +0200https://blog.ipspace.net/2016/08/software-defined-navel-gazing/ <p><a name="_GoBack"></a><a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast is well into its toddler years and it was time for a <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_60-Software-Defined_Navel_Gazing.mp3">teambuilding exercise</a>. Just kidding – we wanted to test new tools and decided to discuss the vacation experiences and podcast ideas while doing that.</p> <p>On a more serious note: we’re always looking for cool projects, implementations and ideas. Contact us at podcast (-the weird sign-) ipspace.net.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_60-Software-Defined_Navel_Gazing.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noSoftware Gone Wild podcast is well into its toddler years and it was time for a teambuilding exercise. Just kidding – we wanted to test new tools and decided to discuss the vacation experiences and podcast ideas while doing that. On a more serious note: we’re always looking for cool projects, implementations and ideas. Contact us at podcast (-the weird sign-) ipspace.net. Listen to the podcastipSpace.netSoftware Gone Wild podcast is well into its toddler years and it was time for a teambuilding exercise. Just kidding – we wanted to test new tools and decided to discuss the vacation experiences and podcast ideas while doing that. On a more serious note: we’re always looking for cool projects, implementations and ideas. Contact us at podcast (-the weird sign-) ipspace.net. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBuild Your Own Service Provider Gear on Software Gone Wildhttps://blog.ipspace.net/2016/06/build-your-own-service-provider-gear-on/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 24 Jun 2016 07:25:00 +0200https://blog.ipspace.net/2016/06/build-your-own-service-provider-gear-on/ <p>A few days after I published a blog post arguing that <a href="/2016/03/you-want-your-network-to-be-like/">most service providers cannot possibly copy Google’s ideas</a> Giacomo Bernardi wrote a comment saying “<em>well, w</em><em>e managed to build our own gear.</em>”</p> <p>Initially I thought they built their own Linux distribution on top of x86 server, but what Giacomo Bernardi described in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_59-Building_Your_Own_Service_Provider_Gear.mp3">Episode 59</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> goes way beyond that:<div class='jump-link'><a href='https://blog.ipspace.net/2016/06/build-your-own-service-provider-gear-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA few days after I published a blog post arguing that most service providers cannot possibly copy Google’s ideas Giacomo Bernardi wrote a comment saying “well, we managed to build our own gear.” Initially I thought they built their own Linux distribution on top of x86 server, but what Giacomo Bernardi described in Episode 59 of Software Gone Wild goes way beyond that:Read more &hellip;ipSpace.netA few days after I published a blog post arguing that most service providers cannot possibly copy Google’s ideas Giacomo Bernardi wrote a comment saying “well, we managed to build our own gear.” Initially I thought they built their own Linux distribution on top of x86 server, but what Giacomo Bernardi described in Episode 59 of Software Gone Wild goes way beyond that:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBig Chain Deep Dive on Software Gone Wildhttps://blog.ipspace.net/2016/06/big-chain-deep-dive-on-software-gone/?utm_source=atom_feedsecuritypodcastSDNSoftware Gone WildFri, 17 Jun 2016 11:59:00 +0200https://blog.ipspace.net/2016/06/big-chain-deep-dive-on-software-gone/ <p>A while ago Big Switch Networks engineers realized there’s a cool use case for their tap aggregation application (Big Tap Monitoring Fabric) – an intelligent <del>patch panel</del> traffic steering solution used as security tool chaining infrastructure in DMZ… and thus the Big Chain was born.</p> <p>Curious how their solution works? Listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_58-Big_Chain.mp3">Episode 58</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> with Andy Shaw and Sandip Shah.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_58-Big_Chain.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA while ago Big Switch Networks engineers realized there’s a cool use case for their tap aggregation application (Big Tap Monitoring Fabric) – an intelligent patch panel traffic steering solution used as security tool chaining infrastructure in DMZ… and thus the Big Chain was born. Curious how their solution works? Listen to Episode 58 of Software Gone Wild with Andy Shaw and Sandip Shah. Listen to the podcastipSpace.netA while ago Big Switch Networks engineers realized there’s a cool use case for their tap aggregation application (Big Tap Monitoring Fabric) – an intelligent patch panel traffic steering solution used as security tool chaining infrastructure in DMZ… and thus the Big Chain was born. Curious how their solution works? Listen to Episode 58 of Software Gone Wild with Andy Shaw and Sandip Shah. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationUsing Macvlan and Ipvlan with Docker on Software Gone Wildhttps://blog.ipspace.net/2016/06/using-macvlan-and-ipvlan-with-docker-on/?utm_source=atom_feedpodcastSoftware Gone WildvirtualizationFri, 3 Jun 2016 14:53:00 +0200https://blog.ipspace.net/2016/06/using-macvlan-and-ipvlan-with-docker-on/ <p>A few weeks after I published <a href="/2016/01/docker-networking-on-software-gone-wild/">Docker Networking</a> podcast, Brent Salisbury sent me an email saying “hey, we have <a href="https://github.com/docker/docker/blob/master/experimental/vlan-networks.md">experimental Macvlan and Ipvlan support for Docker</a>” – a great topic for another podcast.</p> <p>It took a while to get the stars aligned, but finally we got Brent, Madhu Venugopal, John Willis and Nick Buraglio on the same Skype call resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_57-Docker_Networking_Deep_Dive.mp3">Episode 57</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_57-Docker_Networking_Deep_Dive.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA few weeks after I published Docker Networking podcast, Brent Salisbury sent me an email saying “hey, we have experimental Macvlan and Ipvlan support for Docker” – a great topic for another podcast. It took a while to get the stars aligned, but finally we got Brent, Madhu Venugopal, John Willis and Nick Buraglio on the same Skype call resulting in Episode 57 of Software Gone Wild. Listen to the podcastipSpace.netA few weeks after I published Docker Networking podcast, Brent Salisbury sent me an email saying “hey, we have experimental Macvlan and Ipvlan support for Docker” – a great topic for another podcast. It took a while to get the stars aligned, but finally we got Brent, Madhu Venugopal, John Willis and Nick Buraglio on the same Skype call resulting in Episode 57 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationModel-Driven Networking on Software Gone Wildhttps://blog.ipspace.net/2016/05/model-driven-networking-on-software/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 20 May 2016 08:55:00 +0200https://blog.ipspace.net/2016/05/model-driven-networking-on-software/ <p>The <em>Model-driven Networking</em> seems to be another buzzword riding on top of the SDN wave. What exactly is it, how is it supposed to work, will it be really vendor-independent, and has anyone implemented it? I tried to get some answers to these questions from Jeff Tantsura, chair of IETF Routing Area Working Group, in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_55-Model-Driven_Networking.mp3">Episode 55</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2016/05/model-driven-networking-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThe Model-driven Networking seems to be another buzzword riding on top of the SDN wave. What exactly is it, how is it supposed to work, will it be really vendor-independent, and has anyone implemented it? I tried to get some answers to these questions from Jeff Tantsura, chair of IETF Routing Area Working Group, in Episode 55 of Software Gone Wild.Read more &hellip;ipSpace.netThe Model-driven Networking seems to be another buzzword riding on top of the SDN wave. What exactly is it, how is it supposed to work, will it be really vendor-independent, and has anyone implemented it? I tried to get some answers to these questions from Jeff Tantsura, chair of IETF Routing Area Working Group, in Episode 55 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationMore Open-Source Network Management Tools on Software Gone Wildhttps://blog.ipspace.net/2016/04/more-open-source-network-management/?utm_source=atom_feedpodcastnetwork managementSoftware Gone WildFri, 29 Apr 2016 15:25:00 +0200https://blog.ipspace.net/2016/04/more-open-source-network-management/ <p>After listening to <a href="/2015/06/open-source-network-engineer-toolbox/">Open-Source Network Engineer Toolbox</a> Nick Buraglio sent me an email saying “<em>we should do another podcast on open-source network management tools</em>…” and so we did. In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_56-Open-Source_Monitoring_Tools.mp3">Episode 56</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> Nick, Elisa Jasinska and myself discussed a whole range of network management challenges and open-source tools you can use to address them.<div class='jump-link'><a href='https://blog.ipspace.net/2016/04/more-open-source-network-management/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noAfter listening to Open-Source Network Engineer Toolbox Nick Buraglio sent me an email saying “we should do another podcast on open-source network management tools…” and so we did. In Episode 56 of Software Gone Wild Nick, Elisa Jasinska and myself discussed a whole range of network management challenges and open-source tools you can use to address them.Read more &hellip;ipSpace.netAfter listening to Open-Source Network Engineer Toolbox Nick Buraglio sent me an email saying “we should do another podcast on open-source network management tools…” and so we did. In Episode 56 of Software Gone Wild Nick, Elisa Jasinska and myself discussed a whole range of network management challenges and open-source tools you can use to address them.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationShortest Path Bridging (SPB) and Avaya Fabric on Software Gone Wildhttps://blog.ipspace.net/2016/04/shortest-path-bridging-spb-and-avaya/?utm_source=atom_feedbridgingpodcastdata centerfabricSoftware Gone WildFri, 15 Apr 2016 13:09:00 +0200https://blog.ipspace.net/2016/04/shortest-path-bridging-spb-and-avaya/ <p>A few months ago I met a number of great engineers from Avaya and they explained to me how they creatively use Shortest Path Bridging (SPB) to create layer-2, layer-3, L2VPN, L3VPN and even IP Multicast fabrics – it was clearly time for another deep dive into SPB.</p> <p>It took me a while to meet again with <a href="https://www.linkedin.com/in/roger-lapuh-41080a">Roger Lapuh</a>, but finally we started exploring the intricacies of SPB, and even compared it to MPLS for engineers more familiar with MPLS/VPN. Interested? Listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_54-SPB_and_Avaya_Fabric.mp3">Episode 54</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_54-SPB_and_Avaya_Fabric.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA few months ago I met a number of great engineers from Avaya and they explained to me how they creatively use Shortest Path Bridging (SPB) to create layer-2, layer-3, L2VPN, L3VPN and even IP Multicast fabrics – it was clearly time for another deep dive into SPB. It took me a while to meet again with Roger Lapuh, but finally we started exploring the intricacies of SPB, and even compared it to MPLS for engineers more familiar with MPLS/VPN. Interested? Listen to Episode 54 of Software Gone Wild. Listen to the podcastipSpace.netA few months ago I met a number of great engineers from Avaya and they explained to me how they creatively use Shortest Path Bridging (SPB) to create layer-2, layer-3, L2VPN, L3VPN and even IP Multicast fabrics – it was clearly time for another deep dive into SPB. It took me a while to meet again with Roger Lapuh, but finally we started exploring the intricacies of SPB, and even compared it to MPLS for engineers more familiar with MPLS/VPN. Interested? Listen to Episode 54 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPalo Alto Integration with Cisco ACI and OpenStack on Software Gone Wildhttps://blog.ipspace.net/2016/04/palo-alto-integration-with-cisco-aci/?utm_source=atom_feedfirewallpodcastSDNSoftware Gone WildACIFri, 1 Apr 2016 09:43:00 +0200https://blog.ipspace.net/2016/04/palo-alto-integration-with-cisco-aci/ <p>A while ago Christer Swartz explained how a <a href="/2015/01/palo-alto-virtual-firewalls-on-software/">Palo Alto firewall integrates with VMware NSX</a>. In the meantime, Palo Alto announced integration with Cisco ACI and OpenStack, and it was time for another podcast with Christer deep-diving into the technical details of these integrations.</p> <p>Spoiler: It’s not OpFlex. For more details, listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_53-Palo_Alto_Integration_with_Cisco_ACI_and_OpenStack.mp3">Episode 53</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a></p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_53-Palo_Alto_Integration_with_Cisco_ACI_and_OpenStack.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA while ago Christer Swartz explained how a Palo Alto firewall integrates with VMware NSX. In the meantime, Palo Alto announced integration with Cisco ACI and OpenStack, and it was time for another podcast with Christer deep-diving into the technical details of these integrations. Spoiler: It’s not OpFlex. For more details, listen to Episode 53 of Software Gone Wild Listen to the podcastipSpace.netA while ago Christer Swartz explained how a Palo Alto firewall integrates with VMware NSX. In the meantime, Palo Alto announced integration with Cisco ACI and OpenStack, and it was time for another podcast with Christer deep-diving into the technical details of these integrations. Spoiler: It’s not OpFlex. For more details, listen to Episode 53 of Software Gone Wild Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,Automationx86-Based Switching at Ludicrous Speed on Software Gone Wildhttps://blog.ipspace.net/2016/03/x86-based-switching-at-ludicrous-speed/?utm_source=atom_feedpodcastSDNswitchingSoftware Gone WildSun, 20 Mar 2016 11:23:00 +0100https://blog.ipspace.net/2016/03/x86-based-switching-at-ludicrous-speed/ <p>Imagine you want to have an IPv6-only access network and transport residual IPv4 traffic tunneled across it. Sounds great, but you need to terminate those tunnels and encapsulate/decapsulate IPv4 traffic at multi-gigabit rate. </p> <p>There are plenty of reassuringly-expensive hardware solutions that can do that, or you could work with really smart people and get software-based solution that can do 20 Gbps <strong>per CPU core</strong>.<div class='jump-link'><a href='https://blog.ipspace.net/2016/03/x86-based-switching-at-ludicrous-speed/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noImagine you want to have an IPv6-only access network and transport residual IPv4 traffic tunneled across it. Sounds great, but you need to terminate those tunnels and encapsulate/decapsulate IPv4 traffic at multi-gigabit rate. There are plenty of reassuringly-expensive hardware solutions that can do that, or you could work with really smart people and get software-based solution that can do 20 Gbps per CPU core.Read more &hellip;ipSpace.netImagine you want to have an IPv6-only access network and transport residual IPv4 traffic tunneled across it. Sounds great, but you need to terminate those tunnels and encapsulate/decapsulate IPv4 traffic at multi-gigabit rate. There are plenty of reassuringly-expensive hardware solutions that can do that, or you could work with really smart people and get software-based solution that can do 20 Gbps per CPU core.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTroubleshoot Your Network with PacketDesign on Software Gone Wildhttps://blog.ipspace.net/2016/02/troubleshoot-your-network-with/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 26 Feb 2016 08:13:00 +0100https://blog.ipspace.net/2016/02/troubleshoot-your-network-with/ <p>Imagine you get a routing outage in your network resulting in three minutes of traffic blackholing. After a few tense minutes it goes away and life is good, but you desperately want to know what went wrong. Can you figure it out? Well, you could if you were using <a href="http://www.packetdesign.com/">PacketDesign</a> tools, as <a href="https://www.linkedin.com/in/alaettinoglu">Cengiz Alaettinoglu</a> explained on <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_51-Network_Troubleshooting_with_PacketDesign.mp3">Episode 51</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_51-Network_Troubleshooting_with_PacketDesign.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noImagine you get a routing outage in your network resulting in three minutes of traffic blackholing. After a few tense minutes it goes away and life is good, but you desperately want to know what went wrong. Can you figure it out? Well, you could if you were using PacketDesign tools, as Cengiz Alaettinoglu explained on Episode 51 of Software Gone Wild. Listen to the podcastipSpace.netImagine you get a routing outage in your network resulting in three minutes of traffic blackholing. After a few tense minutes it goes away and life is good, but you desperately want to know what went wrong. Can you figure it out? Well, you could if you were using PacketDesign tools, as Cengiz Alaettinoglu explained on Episode 51 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationVMware NSX Update on Software Gone Wildhttps://blog.ipspace.net/2016/02/vmware-nsx-update-on-software-gone-wild/?utm_source=atom_feedpodcastoverlay networksNSXSoftware Gone WildvirtualizationThu, 11 Feb 2016 15:27:00 +0100https://blog.ipspace.net/2016/02/vmware-nsx-update-on-software-gone-wild/ <p>A few months ago VMware launched NSX version 6.2, and I asked my friend <a href="https://networkinferno.net">Anthony Burke</a> to tell us more about the new features. Not surprisingly, we quickly started talking about troubleshooting, routing problems, and finished with route-health-injection done with a Python script. The end result: <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_50-VMware_NSX_6.2.mp3">Episode 50</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>. Enjoy!</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_50-VMware_NSX_6.2.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA few months ago VMware launched NSX version 6.2, and I asked my friend Anthony Burke to tell us more about the new features. Not surprisingly, we quickly started talking about troubleshooting, routing problems, and finished with route-health-injection done with a Python script. The end result: Episode 50 of Software Gone Wild. Enjoy! Listen to the podcastipSpace.netA few months ago VMware launched NSX version 6.2, and I asked my friend Anthony Burke to tell us more about the new features. Not surprisingly, we quickly started talking about troubleshooting, routing problems, and finished with route-health-injection done with a Python script. The end result: Episode 50 of Software Gone Wild. Enjoy! Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationDocker Networking on Software Gone Wildhttps://blog.ipspace.net/2016/01/docker-networking-on-software-gone-wild/?utm_source=atom_feedpodcastdata centeroverlay networksSoftware Gone WildvirtualizationWed, 27 Jan 2016 09:50:00 +0100https://blog.ipspace.net/2016/01/docker-networking-on-software-gone-wild/ <p>A year and a half ago, Docker networking couldn’t span multiple hosts and used NAT with port mapping to expose container-based services to the outside world.</p> <p class="more">Docker is the hottest Linux container solution these days. Want to know more about it? Matt Oswalt is running <a href="http://www.ipspace.net/Introduction_to_Docker">Introduction to Docker</a> webinar in a few days.</p> <p>In August 2014 a small startup decided to change all that. Docker <a href="http://socketplane.io/blog/socketplane-excited-to-be-joining-docker-to-collaborate-with-networking-ecosystem/">bought them before they managed to get public</a>, and the rest is history.<div class='jump-link'><a href='https://blog.ipspace.net/2016/01/docker-networking-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA year and a half ago, Docker networking couldn’t span multiple hosts and used NAT with port mapping to expose container-based services to the outside world. Docker is the hottest Linux container solution these days. Want to know more about it? Matt Oswalt is running Introduction to Docker webinar in a few days. In August 2014 a small startup decided to change all that. Docker bought them before they managed to get public, and the rest is history.Read more &hellip;ipSpace.netA year and a half ago, Docker networking couldn’t span multiple hosts and used NAT with port mapping to expose container-based services to the outside world. Docker is the hottest Linux container solution these days. Want to know more about it? Matt Oswalt is running Introduction to Docker webinar in a few days. In August 2014 a small startup decided to change all that. Docker bought them before they managed to get public, and the rest is history.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenSwitch Deep Dive on Software Gone Wildhttps://blog.ipspace.net/2016/01/openswitch-deep-dive-on-software-gone/?utm_source=atom_feedpodcastSDNswitchingdata centerSoftware Gone WildFri, 15 Jan 2016 11:45:00 +0100https://blog.ipspace.net/2016/01/openswitch-deep-dive-on-software-gone/ <p>A while ago I watched a <a href="http://techfieldday.com/appearance/openswitch-presents-tech-field-day-extra-onug/">Networking Field Day Extra video</a> in which Chris Young and Michael Zayats talked about HP’s open source initiative – they decided to build yet another open networking operating system.</p> <p>Obviously I wanted to know more, reached out to Chris, and we quickly managed to set up an online chat resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_48-Open_Switch.mp3">Episode 48</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast.<div class='jump-link'><a href='https://blog.ipspace.net/2016/01/openswitch-deep-dive-on-software-gone/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago I watched a Networking Field Day Extra video in which Chris Young and Michael Zayats talked about HP’s open source initiative – they decided to build yet another open networking operating system. Obviously I wanted to know more, reached out to Chris, and we quickly managed to set up an online chat resulting in Episode 48 of Software Gone Wild podcast.Read more &hellip;ipSpace.netA while ago I watched a Networking Field Day Extra video in which Chris Young and Michael Zayats talked about HP’s open source initiative – they decided to build yet another open networking operating system. Obviously I wanted to know more, reached out to Chris, and we quickly managed to set up an online chat resulting in Episode 48 of Software Gone Wild podcast.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationRunning Open Daylight in Production Network on Software Gone Wildhttps://blog.ipspace.net/2015/12/running-open-daylight-in-production/?utm_source=atom_feedpodcastSDNOpenFlowSoftware Gone WildMon, 14 Dec 2015 07:57:00 +0100https://blog.ipspace.net/2015/12/running-open-daylight-in-production/ <p>Nick Buraglio used OpenDaylight and OpenFlow-enabled switches to build a part of the <a href="http://sc15.supercomputing.org/scinet">exhibition network of a large international supercomputing conference</a> and was kind enough to talk about his real-life experience in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_47-Open_Daylight_in_Production.mp3">Episode 47</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <p>We covered:<div class='jump-link'><a href='https://blog.ipspace.net/2015/12/running-open-daylight-in-production/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noNick Buraglio used OpenDaylight and OpenFlow-enabled switches to build a part of the exhibition network of a large international supercomputing conference and was kind enough to talk about his real-life experience in Episode 47 of Software Gone Wild. We covered:Read more &hellip;ipSpace.netNick Buraglio used OpenDaylight and OpenFlow-enabled switches to build a part of the exhibition network of a large international supercomputing conference and was kind enough to talk about his real-life experience in Episode 47 of Software Gone Wild. We covered:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationCPLANE Networks on Software Gone Wildhttps://blog.ipspace.net/2015/12/cplane-networks-on-software-gone-wild/?utm_source=atom_feedpodcastoverlay networksSoftware Gone WildFri, 11 Dec 2015 08:24:00 +0100https://blog.ipspace.net/2015/12/cplane-networks-on-software-gone-wild/ <p>When I wrote a blog post explaining the <a href="/2015/06/more-on-centralized-control-and-sdn/">difference between centralized control and centralized control plane</a>, John Casey, CEO of <a href="http://www.cplanenetworks.com/">CPLANE Networks</a> wrote a comment <a href="/2015/06/more-on-centralized-control-and-sdn/#c8373114403187142592">saying</a> “<em>yeah, that’s exactly what we’re doing.</em>”</p> <p>It took us a while to get the stars aligned, but finally we managed to sit down and chat about what they’re doing, resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_46-CPLANE_Networks.mp3">Episode 46</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_46-CPLANE_Networks.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noWhen I wrote a blog post explaining the difference between centralized control and centralized control plane, John Casey, CEO of CPLANE Networks wrote a comment saying “yeah, that’s exactly what we’re doing.” It took us a while to get the stars aligned, but finally we managed to sit down and chat about what they’re doing, resulting in Episode 46 of Software Gone Wild. Listen to the podcastipSpace.netWhen I wrote a blog post explaining the difference between centralized control and centralized control plane, John Casey, CEO of CPLANE Networks wrote a comment saying “yeah, that’s exactly what we’re doing.” It took us a while to get the stars aligned, but finally we managed to sit down and chat about what they’re doing, resulting in Episode 46 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFibbing: OSPF-Based Traffic Engineering with Laurent Vanbeverhttps://blog.ipspace.net/2015/11/fibbing-ospf-based-traffic-engineering/?utm_source=atom_feedpodcastSDNtraffic engineeringSoftware Gone WildFri, 27 Nov 2015 08:19:00 +0100https://blog.ipspace.net/2015/11/fibbing-ospf-based-traffic-engineering/ <p>You might be familiar with the idea of <a href="http://www.ipspace.net/BGP-Based_SDN_Solutions">using BGP as an SDN tool</a> that pushes forwarding entries into routing and forwarding tables of individual devices, allowing you to build hop-by-hop path across the network (more details in <a href="http://packetpushers.net/podcast/podcasts/show-164-cool-or-hot-lapukhov-nkposongs-bgp-sdn/">Packet Pushers podcast with Petr Lapukhov</a>).</p> <p>Researchers from University of Louvain, ETH Zürich and Princeton figured out how to use OSPF to get the same job done and called their approach Fibbing. For more details, listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_45-Fibbing_-_SDN_done_with_OSPF.mp3">Episode 45</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast with <a href="http://vanbever.eu/">Laurent Vanbever</a> (one of the authors), visit the <a href="http://fibbing.net/">project web site</a>, or <a href="https://github.com/fibbing/">download the source code</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_45-Fibbing_-_SDN_done_with_OSPF.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noYou might be familiar with the idea of using BGP as an SDN tool that pushes forwarding entries into routing and forwarding tables of individual devices, allowing you to build hop-by-hop path across the network (more details in Packet Pushers podcast with Petr Lapukhov). Researchers from University of Louvain, ETH Zürich and Princeton figured out how to use OSPF to get the same job done and called their approach Fibbing. For more details, listen to Episode 45 of Software Gone Wild podcast with Laurent Vanbever (one of the authors), visit the project web site, or download the source code. Listen to the podcastipSpace.netYou might be familiar with the idea of using BGP as an SDN tool that pushes forwarding entries into routing and forwarding tables of individual devices, allowing you to build hop-by-hop path across the network (more details in Packet Pushers podcast with Petr Lapukhov). Researchers from University of Louvain, ETH Zürich and Princeton figured out how to use OSPF to get the same job done and called their approach Fibbing. For more details, listen to Episode 45 of Software Gone Wild podcast with Laurent Vanbever (one of the authors), visit the project web site, or download the source code. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTest-Driven Network Development with Michael Kashin on Software Gone Wildhttps://blog.ipspace.net/2015/11/test-driven-network-development-with/?utm_source=atom_feedpodcastSDNnetwork managementSoftware Gone WildFri, 13 Nov 2015 08:01:00 +0100https://blog.ipspace.net/2015/11/test-driven-network-development-with/<p>Imagine you&rsquo;d design your network by documenting the desired traffic flow across the network under all failure conditions, and only then do a low-level design, create configurations, and deploy the network&hellip; while being able to use the desired traffic flows as a testing tool to verify that the network still behaves as expected, both in a test lab as well as in the live network.</p><div class='jump-link'><a href='https://blog.ipspace.net/2015/11/test-driven-network-development-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noImagine you&rsquo;d design your network by documenting the desired traffic flow across the network under all failure conditions, and only then do a low-level design, create configurations, and deploy the network&hellip; while being able to use the desired traffic flows as a testing tool to verify that the network still behaves as expected, both in a test lab as well as in the live network.Read more &hellip;ipSpace.netImagine you&rsquo;d design your network by documenting the desired traffic flow across the network under all failure conditions, and only then do a low-level design, create configurations, and deploy the network&hellip; while being able to use the desired traffic flows as a testing tool to verify that the network still behaves as expected, both in a test lab as well as in the live network.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOptimizing Traffic Engineering with NorthStar Controller on Software Gone Wildhttps://blog.ipspace.net/2015/10/optimizing-traffic-engineering-with/?utm_source=atom_feedMPLSpodcasttraffic engineeringSoftware Gone WildFri, 30 Oct 2015 11:44:00 +0100https://blog.ipspace.net/2015/10/optimizing-traffic-engineering-with/ <p>Content providers were using centralized traffic flow optimization together with MPLS TE for at least 15 years (some of them immediately after Cisco launched the early MPLS-TE implementation in their 12.0(5)T release), but it was always hard to push the results into the network devices.</p> <p>PCEP and BGP-LS all changed that – they give you a standard mechanism to extract network topology and install end-to-end paths across the network, as <a href="https://www.linkedin.com/pub/julian-lucek/0/117/4b4">Julian Lucek</a> of Juniper Networks explained in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_43-NorthStar_MPLS-TE_Controller.mp3">Episode 43</a> of Software Gone Wild.<div class='jump-link'><a href='https://blog.ipspace.net/2015/10/optimizing-traffic-engineering-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noContent providers were using centralized traffic flow optimization together with MPLS TE for at least 15 years (some of them immediately after Cisco launched the early MPLS-TE implementation in their 12.0(5)T release), but it was always hard to push the results into the network devices. PCEP and BGP-LS all changed that – they give you a standard mechanism to extract network topology and install end-to-end paths across the network, as Julian Lucek of Juniper Networks explained in Episode 43 of Software Gone Wild.Read more &hellip;ipSpace.netContent providers were using centralized traffic flow optimization together with MPLS TE for at least 15 years (some of them immediately after Cisco launched the early MPLS-TE implementation in their 12.0(5)T release), but it was always hard to push the results into the network devices. PCEP and BGP-LS all changed that – they give you a standard mechanism to extract network topology and install end-to-end paths across the network, as Julian Lucek of Juniper Networks explained in Episode 43 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSDN Internet Router Is in Production on Software Gone Wildhttps://blog.ipspace.net/2015/10/sdn-internet-router-is-in-production-on/?utm_source=atom_feedpodcastSDNInternetWANSoftware Gone WildFri, 16 Oct 2015 08:45:00 +0200https://blog.ipspace.net/2015/10/sdn-internet-router-is-in-production-on/ <p>You might remember the <a href="/2015/01/sdn-router-spotify-on-software-gone-wild/">great idea David Barroso had last autumn</a> – turn an Arista switch into an Internet edge router (SDN Internet Router – SIR). In the meantime, he implemented that solution in production environment serving high-speed links at multiple Internet exchange points. It was obviously time for <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_42-SDN_Internet_Router_-_Update.mp3">another podcast on the same topic</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2015/10/sdn-internet-router-is-in-production-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noYou might remember the great idea David Barroso had last autumn – turn an Arista switch into an Internet edge router (SDN Internet Router – SIR). In the meantime, he implemented that solution in production environment serving high-speed links at multiple Internet exchange points. It was obviously time for another podcast on the same topic.Read more &hellip;ipSpace.netYou might remember the great idea David Barroso had last autumn – turn an Arista switch into an Internet edge router (SDN Internet Router – SIR). In the meantime, he implemented that solution in production environment serving high-speed links at multiple Internet exchange points. It was obviously time for another podcast on the same topic.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSoftware-Defined IXP with Laurent Vanbever on Software Gone Wildhttps://blog.ipspace.net/2015/10/software-defined-ixp-with-laurent/?utm_source=atom_feedpodcastSDNInternetSoftware Gone WildMon, 5 Oct 2015 08:09:00 +0200https://blog.ipspace.net/2015/10/software-defined-ixp-with-laurent/ <p>A while ago I started discussing the intricate technical details of fibbing (an ingenious way of implementing traffic engineering with traditional OSPF) with Laurent Vanbever and other members of his group, and we decided to record a podcast on this topic.</p> <p>Things never go as planned in a live chat, and we finished talking about another one of his projects – software defined Internet exchange point (SDX), the topic of <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_41-Software-Defined_IXP_with_Laurent_Vanbever.mp3">Episode 41</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2015/10/software-defined-ixp-with-laurent/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago I started discussing the intricate technical details of fibbing (an ingenious way of implementing traffic engineering with traditional OSPF) with Laurent Vanbever and other members of his group, and we decided to record a podcast on this topic. Things never go as planned in a live chat, and we finished talking about another one of his projects – software defined Internet exchange point (SDX), the topic of Episode 41 of Software Gone Wild.Read more &hellip;ipSpace.netA while ago I started discussing the intricate technical details of fibbing (an ingenious way of implementing traffic engineering with traditional OSPF) with Laurent Vanbever and other members of his group, and we decided to record a podcast on this topic. Things never go as planned in a live chat, and we finished talking about another one of his projects – software defined Internet exchange point (SDX), the topic of Episode 41 of Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationDLSP – QoS-Aware Routing Protocol on Software Gone Wildhttps://blog.ipspace.net/2015/09/dlsp-qos-aware-routing-protocol-on/?utm_source=atom_feedpodcastSD-WANSDNQoSWANSoftware Gone WildFri, 18 Sep 2015 08:14:00 +0200https://blog.ipspace.net/2015/09/dlsp-qos-aware-routing-protocol-on/<p>When I asked &ldquo;<em>Are there any truly</em> <em>QoS-aware routing protocols out there?</em>&rdquo; in <a href="/2015/07/routing-protocols-and-sd-wan-apples-and/">one of my SD-WAN posts</a>, Marcelo Spohn from <a href="http://www.adaranetworks.com">ADARA Networks</a> quickly pointed out that they have one &ndash; Dynamic Link-State Routing Protocol.</p> <p>He also claimed that DLSP has no scalability concerns &ndash; more than enough reasons to schedule an online chat, resulting in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_40-Dynamic_Link_State_Protocol_with_Adara.mp3">Episode 40</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>. We didn&rsquo;t go too deep this time, but you should get a nice overview of what DLSP is and how it works.</p> <p>::: jump-link <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_40-Dynamic_Link_State_Protocol_with_Adara.mp3">Enjoy the podcast</a> :::</p> devnull@ipspace.net (ipSpace.net)noWhen I asked &ldquo;Are there any truly QoS-aware routing protocols out there?&rdquo; in one of my SD-WAN posts, Marcelo Spohn from ADARA Networks quickly pointed out that they have one &ndash; Dynamic Link-State Routing Protocol. He also claimed that DLSP has no scalability concerns &ndash; more than enough reasons to schedule an online chat, resulting in Episode 40 of Software Gone Wild. We didn&rsquo;t go too deep this time, but you should get a nice overview of what DLSP is and how it works. ::: jump-link Enjoy the podcast :::ipSpace.netWhen I asked &ldquo;Are there any truly QoS-aware routing protocols out there?&rdquo; in one of my SD-WAN posts, Marcelo Spohn from ADARA Networks quickly pointed out that they have one &ndash; Dynamic Link-State Routing Protocol. He also claimed that DLSP has no scalability concerns &ndash; more than enough reasons to schedule an online chat, resulting in Episode 40 of Software Gone Wild. We didn&rsquo;t go too deep this time, but you should get a nice overview of what DLSP is and how it works. ::: jump-link Enjoy the podcast :::SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationUse nProbe and ELK Stack to Build a Netflow Solution on Software Gone Wildhttps://blog.ipspace.net/2015/09/use-nprobe-and-elk-stack-to-build/?utm_source=atom_feedpodcastnetwork managementSoftware Gone WildNetflowFri, 4 Sep 2015 08:34:00 +0200https://blog.ipspace.net/2015/09/use-nprobe-and-elk-stack-to-build/ <p>How do you capture all the flows entering or exiting a data center if your core Nexus 7000 switch cannot do it in hardware? You take an x86 server, load nProbe on it, and connect the nProbe to an analysis system built with ELK stack… at least that’s what <a href="https://www.linkedin.com/in/clay584">Clay Curtis</a> did (and <a href="http://www.networkassassin.com/line-rate-flow-capture-to-elk-stack/">documented in a blog post</a>).</p> <p>Obviously I wanted to know more about his solution and invited him to the <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast. In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_39-nProbe_with_ELK_Stack.mp3">Episode 39</a> we discussed:<div class='jump-link'><a href='https://blog.ipspace.net/2015/09/use-nprobe-and-elk-stack-to-build/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noHow do you capture all the flows entering or exiting a data center if your core Nexus 7000 switch cannot do it in hardware? You take an x86 server, load nProbe on it, and connect the nProbe to an analysis system built with ELK stack… at least that’s what Clay Curtis did (and documented in a blog post). Obviously I wanted to know more about his solution and invited him to the Software Gone Wild podcast. In Episode 39 we discussed:Read more &hellip;ipSpace.netHow do you capture all the flows entering or exiting a data center if your core Nexus 7000 switch cannot do it in hardware? You take an x86 server, load nProbe on it, and connect the nProbe to an analysis system built with ELK stack… at least that’s what Clay Curtis did (and documented in a blog post). Obviously I wanted to know more about his solution and invited him to the Software Gone Wild podcast. In Episode 39 we discussed:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationLayer-3-Only Data Center Networks with Cumulus Linux on Software Gone Wildhttps://blog.ipspace.net/2015/08/layer-3-only-data-center-networks-with/?utm_source=atom_feeddata centerfabricIP routingCLNPCumulus LinuxSoftware Gone WildpodcastFri, 21 Aug 2015 08:47:00 +0200https://blog.ipspace.net/2015/08/layer-3-only-data-center-networks-with/<p>With the advent of layer-3 leaf-and-spine data center fabrics, it became (almost) possible to build <a href="/2015/04/rearchitecting-l3-only-networks/">pure layer-3-only data center networks</a>&hellip; if only the networking vendors would do the very last step and make every server-to-ToR interface a layer-3 interface. Cumulus decided to do just that.</p><div class='jump-link'><a href='https://blog.ipspace.net/2015/08/layer-3-only-data-center-networks-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWith the advent of layer-3 leaf-and-spine data center fabrics, it became (almost) possible to build pure layer-3-only data center networks&hellip; if only the networking vendors would do the very last step and make every server-to-ToR interface a layer-3 interface. Cumulus decided to do just that.Read more &hellip;ipSpace.netWith the advent of layer-3 leaf-and-spine data center fabrics, it became (almost) possible to build pure layer-3-only data center networks&hellip; if only the networking vendors would do the very last step and make every server-to-ToR interface a layer-3 interface. Cumulus decided to do just that.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSoftware-Defined Hardware Forwarding Pipeline on HP Switcheshttps://blog.ipspace.net/2015/06/software-defined-hardware-forwarding/?utm_source=atom_feedpodcastOpenFlowSoftware Gone WildFri, 26 Jun 2015 08:14:00 +0200https://blog.ipspace.net/2015/06/software-defined-hardware-forwarding/ <p>Writing OpenFlow controllers that interact with physical hardware is <a href="/2013/09/openflow-fabric-controllers-are-light/">harder than most people think</a>. Apart from developing a distributed system (which is hard in itself), you have to deal with <a href="/2013/09/openflow-and-fermi-estimates/">limitations of hardware forwarding pipelines</a>, differences in forwarding hardware, imprecise abstractions (most vendors still support <a href="/2014/05/optimizing-openflow-hardware-tables/">single OpenFlow table per switch</a>), and <a href="/2013/10/flow-table-explosion-with-openflow-10/">resulting bloated flow tables</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2015/06/software-defined-hardware-forwarding/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWriting OpenFlow controllers that interact with physical hardware is harder than most people think. Apart from developing a distributed system (which is hard in itself), you have to deal with limitations of hardware forwarding pipelines, differences in forwarding hardware, imprecise abstractions (most vendors still support single OpenFlow table per switch), and resulting bloated flow tables.Read more &hellip;ipSpace.netWriting OpenFlow controllers that interact with physical hardware is harder than most people think. Apart from developing a distributed system (which is hard in itself), you have to deal with limitations of hardware forwarding pipelines, differences in forwarding hardware, imprecise abstractions (most vendors still support single OpenFlow table per switch), and resulting bloated flow tables.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpen-Source Network Engineer Toolboxhttps://blog.ipspace.net/2015/06/open-source-network-engineer-toolbox/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 19 Jun 2015 15:48:00 +0200https://blog.ipspace.net/2015/06/open-source-network-engineer-toolbox/ <p><a href="http://bigwaveit.org/">Elisa Jasinska</a>, <a href="http://herdingpackets.net/about/">Bob McCouch</a> and I were scheduled to record a NetOps podcast with a major vendor, but unfortunately their technical director cancelled at the last minute. Like good network engineers, we immediately found plan B and focused on Elisa’s specialty: open-source tools.<div class='jump-link'><a href='https://blog.ipspace.net/2015/06/open-source-network-engineer-toolbox/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noElisa Jasinska, Bob McCouch and I were scheduled to record a NetOps podcast with a major vendor, but unfortunately their technical director cancelled at the last minute. Like good network engineers, we immediately found plan B and focused on Elisa’s specialty: open-source tools.Read more &hellip;ipSpace.netElisa Jasinska, Bob McCouch and I were scheduled to record a NetOps podcast with a major vendor, but unfortunately their technical director cancelled at the last minute. Like good network engineers, we immediately found plan B and focused on Elisa’s specialty: open-source tools.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNAPALM: Integrating Ansible with Network Devices on Software Gone Wildhttps://blog.ipspace.net/2015/06/napalm-integrating-ansible-with-network/?utm_source=atom_feedpodcastSDNAnsibleSoftware Gone WildFri, 12 Jun 2015 09:34:00 +0200https://blog.ipspace.net/2015/06/napalm-integrating-ansible-with-network/ <p>What happens when network engineers with strong programming background and focus on open source tools have to implement network automation in a multi-vendor network? Instead of complaining or ranting about the stupidities of traditional networking vendors and CLI they write an abstraction layer that allows them to treat all their devices in the same way and immediately open-source it.<div class='jump-link'><a href='https://blog.ipspace.net/2015/06/napalm-integrating-ansible-with-network/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhat happens when network engineers with strong programming background and focus on open source tools have to implement network automation in a multi-vendor network? Instead of complaining or ranting about the stupidities of traditional networking vendors and CLI they write an abstraction layer that allows them to treat all their devices in the same way and immediately open-source it.Read more &hellip;ipSpace.netWhat happens when network engineers with strong programming background and focus on open source tools have to implement network automation in a multi-vendor network? Instead of complaining or ranting about the stupidities of traditional networking vendors and CLI they write an abstraction layer that allows them to treat all their devices in the same way and immediately open-source it.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Monitoring in SDN Era on Software Gone Wildhttps://blog.ipspace.net/2015/05/network-monitoring-in-sdn-era-on/?utm_source=atom_feedpodcastSDNnetwork managementSoftware Gone WildFri, 29 May 2015 09:48:00 +0200https://blog.ipspace.net/2015/05/network-monitoring-in-sdn-era-on/ <p>A while ago Chris Young sent me a few questions about network management in the brave new SDN world. I never focused on network management, but I know a few people who do, including Terry Slattery and Matt Oswalt. Interop brought us all together, and we sat down one evening after the presentations to chat about the challenges of monitoring and managing SDN networks.</p> <p>We started with easy things like comparing monitoring results from virtual and physical switches (and why they’ll never match and do we even care), and quickly diverted into all sorts of potential oscillations caused by overly-dynamic load balancing caused by flow label-based ECMP and flowlets.<div class='jump-link'><a href='https://blog.ipspace.net/2015/05/network-monitoring-in-sdn-era-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago Chris Young sent me a few questions about network management in the brave new SDN world. I never focused on network management, but I know a few people who do, including Terry Slattery and Matt Oswalt. Interop brought us all together, and we sat down one evening after the presentations to chat about the challenges of monitoring and managing SDN networks. We started with easy things like comparing monitoring results from virtual and physical switches (and why they’ll never match and do we even care), and quickly diverted into all sorts of potential oscillations caused by overly-dynamic load balancing caused by flow label-based ECMP and flowlets.Read more &hellip;ipSpace.netA while ago Chris Young sent me a few questions about network management in the brave new SDN world. I never focused on network management, but I know a few people who do, including Terry Slattery and Matt Oswalt. Interop brought us all together, and we sat down one evening after the presentations to chat about the challenges of monitoring and managing SDN networks. We started with easy things like comparing monitoring results from virtual and physical switches (and why they’ll never match and do we even care), and quickly diverted into all sorts of potential oscillations caused by overly-dynamic load balancing caused by flow label-based ECMP and flowlets.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSegment Routing 101 on Software Gone Wildhttps://blog.ipspace.net/2015/05/segment-routing-101-on-software-gone/?utm_source=atom_feedpodcastSDNSoftware Gone Wildsegment routingFri, 22 May 2015 19:49:00 +0200https://blog.ipspace.net/2015/05/segment-routing-101-on-software-gone/<p>With all the hype around Segment Routing we said: &ldquo;let&rsquo;s chat about it, what could possibly go wrong&rdquo;. The result: <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_33-Segment_Routing_101.mp3">Episode 33</a> of <a href="https://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>. We didn&rsquo;t get very far into the technical details, but you might still find the overview useful (or not &ndash; do tell me how good or useless it is).</p> <div class='jump-link'><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_33-Segment_Routing_101.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noWith all the hype around Segment Routing we said: &ldquo;let&rsquo;s chat about it, what could possibly go wrong&rdquo;. The result: Episode 33 of Software Gone Wild. We didn&rsquo;t get very far into the technical details, but you might still find the overview useful (or not &ndash; do tell me how good or useless it is). Listen to the podcastipSpace.netWith all the hype around Segment Routing we said: &ldquo;let&rsquo;s chat about it, what could possibly go wrong&rdquo;. The result: Episode 33 of Software Gone Wild. We didn&rsquo;t get very far into the technical details, but you might still find the overview useful (or not &ndash; do tell me how good or useless it is). Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBuild Your Development or Lab Environment with Ravello Systemshttps://blog.ipspace.net/2015/05/build-your-development-or-lab/?utm_source=atom_feedpodcastSDNcloudSoftware Gone WildFri, 15 May 2015 10:14:00 +0200https://blog.ipspace.net/2015/05/build-your-development-or-lab/ <p>When preparing for my <a href="http://www.interop.com/lasvegas/scheduler/session/simplifying-application-workload-migration-between-data-centers">Simplifying Application Workload Migration</a> workshop (coming in <a href="http://www.ipspace.net/AADesign">webinar format</a> in autumn) I tried to find a solution that would allow me to recreate existing enterprise virtual network infrastructure in a cloud environment. Soon I stumbled upon <a href="http://www.ravellosystems.com/">Ravello Systems</a>, remembered hearing about them on a <a href="http://www.thecloudcast.net/2013/05/the-cloudcast-eps85-nested-clouds-and.html">CloudCast.net podcast</a>, and got in touch with them to figure out whether they could help me solve that challenge.</p> <p>It turned you might use Ravello Systems’ solution to implement disaster recovery, but I got way more excited about the possibility to use their solution for labs or testing. To learn more about that, listen to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_32-Cloud-Based_Labs_with_Ravello_Systems.mp3">Episode 32</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_32-Cloud-Based_Labs_with_Ravello_Systems.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noWhen preparing for my Simplifying Application Workload Migration workshop (coming in webinar format in autumn) I tried to find a solution that would allow me to recreate existing enterprise virtual network infrastructure in a cloud environment. Soon I stumbled upon Ravello Systems, remembered hearing about them on a CloudCast.net podcast, and got in touch with them to figure out whether they could help me solve that challenge. It turned you might use Ravello Systems’ solution to implement disaster recovery, but I got way more excited about the possibility to use their solution for labs or testing. To learn more about that, listen to Episode 32 of Software Gone Wild. Listen to the podcastipSpace.netWhen preparing for my Simplifying Application Workload Migration workshop (coming in webinar format in autumn) I tried to find a solution that would allow me to recreate existing enterprise virtual network infrastructure in a cloud environment. Soon I stumbled upon Ravello Systems, remembered hearing about them on a CloudCast.net podcast, and got in touch with them to figure out whether they could help me solve that challenge. It turned you might use Ravello Systems’ solution to implement disaster recovery, but I got way more excited about the possibility to use their solution for labs or testing. To learn more about that, listen to Episode 32 of Software Gone Wild. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpenFlow in HP Campus Solutions on Software Gone Wildhttps://blog.ipspace.net/2015/05/openflow-in-hp-campus-solutions-on/?utm_source=atom_feedpodcastSDNOpenFlowSoftware Gone WildFri, 8 May 2015 09:29:00 +0200https://blog.ipspace.net/2015/05/openflow-in-hp-campus-solutions-on/ <p>When I finished my <a href="http://www.ipspace.net/SDN,_OpenFlow_and_NFV_Workshop">SDN workshop</a> @ <a href="http://www.interop.com/lasvegas/scheduler/session/software-defined-networking-and-network-virtualization">Interop Las Vegas</a> (including a chapter on <a href="http://www.ipspace.net/OpenFlow_Deep_Dive">OpenFlow limitations</a>), some attendees started wondering whether they should even consider OpenFlow in their SDN deployments. My answer: don’t blame the tool if people use it incorrectly.</p> <p>Two days later, I discovered HP is one of those companies that knows how to use that tool.<div class='jump-link'><a href='https://blog.ipspace.net/2015/05/openflow-in-hp-campus-solutions-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhen I finished my SDN workshop @ Interop Las Vegas (including a chapter on OpenFlow limitations), some attendees started wondering whether they should even consider OpenFlow in their SDN deployments. My answer: don’t blame the tool if people use it incorrectly. Two days later, I discovered HP is one of those companies that knows how to use that tool.Read more &hellip;ipSpace.netWhen I finished my SDN workshop @ Interop Las Vegas (including a chapter on OpenFlow limitations), some attendees started wondering whether they should even consider OpenFlow in their SDN deployments. My answer: don’t blame the tool if people use it incorrectly. Two days later, I discovered HP is one of those companies that knows how to use that tool.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPF_RING Deep Dive with Luca Deri on Software Gone Wildhttps://blog.ipspace.net/2015/04/pfring-deep-dive-with-luca-deri-on/?utm_source=atom_feedpodcastSDNswitchingSoftware Gone WildThu, 30 Apr 2015 14:49:00 +0200https://blog.ipspace.net/2015/04/pfring-deep-dive-with-luca-deri-on/ <p>Whenever software switching nerds get together and start discussing the challenges of high-speed x86-based switching, someone inevitably mentions PF_RING, an open-source library that gives you blazingly fast packet processing performance on a Linux server.</p> <p>I started recording a podcast with Luca Deri, the author of PF_RING, but we diverted into <a href="/2015/04/ntopng-deep-dive-with-luca-deri-on/">discussing ntopng</a>, Luca’s network monitoring software. We quickly fixed that and recorded another podcast – this time, <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_30-PF-RING_with_Luca_Deri.mp3">it’s all about PF_RING</a>, and we discussed these topics:<div class='jump-link'><a href='https://blog.ipspace.net/2015/04/pfring-deep-dive-with-luca-deri-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhenever software switching nerds get together and start discussing the challenges of high-speed x86-based switching, someone inevitably mentions PF_RING, an open-source library that gives you blazingly fast packet processing performance on a Linux server. I started recording a podcast with Luca Deri, the author of PF_RING, but we diverted into discussing ntopng, Luca’s network monitoring software. We quickly fixed that and recorded another podcast – this time, it’s all about PF_RING, and we discussed these topics:Read more &hellip;ipSpace.netWhenever software switching nerds get together and start discussing the challenges of high-speed x86-based switching, someone inevitably mentions PF_RING, an open-source library that gives you blazingly fast packet processing performance on a Linux server. I started recording a podcast with Luca Deri, the author of PF_RING, but we diverted into discussing ntopng, Luca’s network monitoring software. We quickly fixed that and recorded another podcast – this time, it’s all about PF_RING, and we discussed these topics:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNSONE – Data-Driven DNS on Software Gone Wildhttps://blog.ipspace.net/2015/04/nsone-data-driven-dns-on-software-gone/?utm_source=atom_feedDNSpodcastSoftware Gone WildFri, 17 Apr 2015 08:15:00 +0200https://blog.ipspace.net/2015/04/nsone-data-driven-dns-on-software-gone/ <p>DNS is a crucial component in modern scale-out application architectures, so when Alex Vayl and Kris Beevers from <a href="https://nsone.net/">NSONE</a> contacted me just as I was starting to work on my <a href="http://www.ipspace.net/AADesign">Active-Active Data Centers</a> presentation, I was more than interested to hear what their solution can do.</p> <p>The result: <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_29-NSONE_-_Data-Driven_DNS.mp3">Episode 29</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> in which we discussed a number of topics including:<div class='jump-link'><a href='https://blog.ipspace.net/2015/04/nsone-data-driven-dns-on-software-gone/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noDNS is a crucial component in modern scale-out application architectures, so when Alex Vayl and Kris Beevers from NSONE contacted me just as I was starting to work on my Active-Active Data Centers presentation, I was more than interested to hear what their solution can do. The result: Episode 29 of Software Gone Wild in which we discussed a number of topics including:Read more &hellip;ipSpace.netDNS is a crucial component in modern scale-out application architectures, so when Alex Vayl and Kris Beevers from NSONE contacted me just as I was starting to work on my Active-Active Data Centers presentation, I was more than interested to hear what their solution can do. The result: Episode 29 of Software Gone Wild in which we discussed a number of topics including:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,Automationntopng Deep Dive with Luca Deri on Software Gone Wildhttps://blog.ipspace.net/2015/04/ntopng-deep-dive-with-luca-deri-on/?utm_source=atom_feedpodcastnetwork managementSoftware Gone WildNetflowFri, 10 Apr 2015 09:03:00 +0200https://blog.ipspace.net/2015/04/ntopng-deep-dive-with-luca-deri-on/ <p>PF_RING is a great open-source project that enables extremely fast packet processing on x86 servers, so I was more than delighted when <a href="/2014/08/pmacct-traffic-analysis-tool-with/">Paolo Lucente of the pmacct fame</a> introduced me to <a href="http://luca.ntop.org/">Luca Deri</a>, the author of PF_RING.</p> <p>When we started chatting, we couldn’t resist mentioning <a href="http://www.ntop.org/products/ntop/">ntopng</a>, another open-source project Luca is working on.<div class='jump-link'><a href='https://blog.ipspace.net/2015/04/ntopng-deep-dive-with-luca-deri-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noPF_RING is a great open-source project that enables extremely fast packet processing on x86 servers, so I was more than delighted when Paolo Lucente of the pmacct fame introduced me to Luca Deri, the author of PF_RING. When we started chatting, we couldn’t resist mentioning ntopng, another open-source project Luca is working on.Read more &hellip;ipSpace.netPF_RING is a great open-source project that enables extremely fast packet processing on x86 servers, so I was more than delighted when Paolo Lucente of the pmacct fame introduced me to Luca Deri, the author of PF_RING. When we started chatting, we couldn’t resist mentioning ntopng, another open-source project Luca is working on.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationMicrosegmentation in VMware NSX on Software Gone Wildhttps://blog.ipspace.net/2015/03/microsegmentation-in-vmware-nsx-on/?utm_source=atom_feedfirewallpodcastSDNSoftware Gone WildvirtualizationFri, 27 Mar 2015 09:24:00 +0100https://blog.ipspace.net/2015/03/microsegmentation-in-vmware-nsx-on/ <p><a href="/2012/11/virtual-firewall-taxonomy/">VM NIC firewalls</a> have been around for years (they’re also the reason I got my <a href="/2013/04/virtual-firewall-presentation-from/">first invitation to the awesome Troopers conference</a>), but it sounds so much better when you call them <em>Microsegmentation</em> (not the one <a href="https://www.troopers.de/events/troopers15/474_ipv6_microsegmentation_done_right/">I talked about @ Troopers this year</a>).</p> <p>Marketing gimmicks aside, VMware NSX includes an <a href="http://content.ipspace.net/get/4.4%20-%20NSX%20Firewalls.mp4">interesting in-kernel stateful firewall</a>, and Brad Hedlund was kind enough to explain the intricacies of that feature in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_27-VMware_NSX_Microsegmentation.mp3">Episode 27</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a></p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_27-VMware_NSX_Microsegmentation.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noVM NIC firewalls have been around for years (they’re also the reason I got my first invitation to the awesome Troopers conference), but it sounds so much better when you call them Microsegmentation (not the one I talked about @ Troopers this year). Marketing gimmicks aside, VMware NSX includes an interesting in-kernel stateful firewall, and Brad Hedlund was kind enough to explain the intricacies of that feature in Episode 27 of Software Gone Wild Listen to the podcastipSpace.netVM NIC firewalls have been around for years (they’re also the reason I got my first invitation to the awesome Troopers conference), but it sounds so much better when you call them Microsegmentation (not the one I talked about @ Troopers this year). Marketing gimmicks aside, VMware NSX includes an interesting in-kernel stateful firewall, and Brad Hedlund was kind enough to explain the intricacies of that feature in Episode 27 of Software Gone Wild Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetworking Field Day 9 Wrap-up on Software Gone Wildhttps://blog.ipspace.net/2015/03/networking-field-day-9-wrap-up-on/?utm_source=atom_feedpodcastSDNswitchingSoftware Gone WildFri, 20 Mar 2015 14:45:00 +0100https://blog.ipspace.net/2015/03/networking-field-day-9-wrap-up-on/ <p>A few days after the <a href="http://techfieldday.com/event/nfd9/">Networking Field Day 9</a> event <a href="https://www.forwardingplane.net/about/">Nick Buraglio</a> organized a virtual meetup with <a href="http://globalconfig.net/brandoncarroll/">Brandon Carroll</a>, <a href="https://ccie31104.wordpress.com/about/">Brandon Mangold</a>, <a href="http://herdingpackets.net/">Bob McCouch</a> and myself, and we discussed the presentations from <a href="http://techfieldday.com/appearance/nec-presents-at-networking-field-day-9/">NEC</a>, <a href="http://techfieldday.com/appearance/cumulus-networks-presents-at-networking-field-day-9/">Cumulus</a>, <a href="http://techfieldday.com/appearance/cisco-presents-at-networking-field-day-9/">Cisco</a> and <a href="http://techfieldday.com/appearance/brocade-presents-at-networking-field-day-9/">Brocade</a>. Nick recorded the conversation and so <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_26-Networking_Field_Day_9_Wrapup.mp3">Episode 26</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> was born.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_26-Networking_Field_Day_9_Wrapup.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noA few days after the Networking Field Day 9 event Nick Buraglio organized a virtual meetup with Brandon Carroll, Brandon Mangold, Bob McCouch and myself, and we discussed the presentations from NEC, Cumulus, Cisco and Brocade. Nick recorded the conversation and so Episode 26 of Software Gone Wild was born. Listen to the podcastipSpace.netA few days after the Networking Field Day 9 event Nick Buraglio organized a virtual meetup with Brandon Carroll, Brandon Mangold, Bob McCouch and myself, and we discussed the presentations from NEC, Cumulus, Cisco and Brocade. Nick recorded the conversation and so Episode 26 of Software Gone Wild was born. Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTCP Optimization with Juho Snellman on Software Gone Wildhttps://blog.ipspace.net/2015/03/tcp-optimization-with-juho-snellman-on/?utm_source=atom_feedpodcastTCPWANSoftware Gone WildFri, 13 Mar 2015 07:57:00 +0100https://blog.ipspace.net/2015/03/tcp-optimization-with-juho-snellman-on/ <p>Achieving 40 Gbps of forwarding performance on an Intel server is no longer a big deal - Juniper got to 160 Gbps with finely tuned architecture - but can you do real-time optimization of a million concurrent TCP sessions on that same box at 20 Gbps? </p> <p>Juho Snellman from <a href="https://www.teclo.net/">Teclo Networks</a> explained how they got there in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_25-TCP_Optimization_with_Juho_Snellman.mp3">Episode 25</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>… and you’ll learn a ton of things about radio networks on the way.</p> <p><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_25-TCP_Optimization_with_Juho_Snellman.mp3">Enjoy the show!</a></p> devnull@ipspace.net (ipSpace.net)noAchieving 40 Gbps of forwarding performance on an Intel server is no longer a big deal - Juniper got to 160 Gbps with finely tuned architecture - but can you do real-time optimization of a million concurrent TCP sessions on that same box at 20 Gbps? Juho Snellman from Teclo Networks explained how they got there in Episode 25 of Software Gone Wild… and you’ll learn a ton of things about radio networks on the way. Enjoy the show!ipSpace.netAchieving 40 Gbps of forwarding performance on an Intel server is no longer a big deal - Juniper got to 160 Gbps with finely tuned architecture - but can you do real-time optimization of a million concurrent TCP sessions on that same box at 20 Gbps? Juho Snellman from Teclo Networks explained how they got there in Episode 25 of Software Gone Wild… and you’ll learn a ton of things about radio networks on the way. Enjoy the show!SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationScalable Load Balancing with Avi Networks on Software Gone Wildhttps://blog.ipspace.net/2015/03/scalable-load-balancing-with-avi/?utm_source=atom_feedpodcastcloudload balancingSoftware Gone WildFri, 6 Mar 2015 12:58:00 +0100https://blog.ipspace.net/2015/03/scalable-load-balancing-with-avi/ <p>How many times have you received exact specifications of the traffic the e-commerce platform you have to deploy will generate? How do you buy a load balancer (application delivery controller in marketese) to support that (somewhat unknown) amount of traffic? In most cases, you buy a box that’s several times too big for the traffic the site is receiving most of the time, and still crashes under peak load.<div class='jump-link'><a href='https://blog.ipspace.net/2015/03/scalable-load-balancing-with-avi/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noHow many times have you received exact specifications of the traffic the e-commerce platform you have to deploy will generate? How do you buy a load balancer (application delivery controller in marketese) to support that (somewhat unknown) amount of traffic? In most cases, you buy a box that’s several times too big for the traffic the site is receiving most of the time, and still crashes under peak load.Read more &hellip;ipSpace.netHow many times have you received exact specifications of the traffic the e-commerce platform you have to deploy will generate? How do you buy a load balancer (application delivery controller in marketese) to support that (somewhat unknown) amount of traffic? In most cases, you buy a box that’s several times too big for the traffic the site is receiving most of the time, and still crashes under peak load.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationHands-On Tail-F Experience – Part 2https://blog.ipspace.net/2015/02/hands-on-tail-f-experience-part-2/?utm_source=atom_feedpodcastSDNSoftware Gone WildTue, 17 Feb 2015 10:15:00 +0100https://blog.ipspace.net/2015/02/hands-on-tail-f-experience-part-2/ <p>Want to know even more about <a href="/2013/05/tail-f-network-control-system-first/">Tail-F NCS</a> after listening to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_22-Hands-On_Tail-F_NCS.mp3">Episode 22</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>? <a href="http://learning.nil.com/about-nil-learning/people/person/bostjan-sustar/">Boštjan Šuštar</a> and <a href="http://learning.nil.com/about-nil-learning/people/person/marko-tisler/">Marko Tišler</a> from <a href="http://www.nil.com/">NIL Data Communications</a> continue their deep dive into the secrets of NCS in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_23-Hands-On_Tail-F_NCS_-_Part_2.mp3">Software Gone Wild Episode 23</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_23-Hands-On_Tail-F_NCS_-_Part_2.mp3">Enjoy the show</a></div> devnull@ipspace.net (ipSpace.net)noWant to know even more about Tail-F NCS after listening to Episode 22 of Software Gone Wild? Boštjan Šuštar and Marko Tišler from NIL Data Communications continue their deep dive into the secrets of NCS in Software Gone Wild Episode 23. Enjoy the showipSpace.netWant to know even more about Tail-F NCS after listening to Episode 22 of Software Gone Wild? Boštjan Šuštar and Marko Tišler from NIL Data Communications continue their deep dive into the secrets of NCS in Software Gone Wild Episode 23. Enjoy the showSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationHands-On Tail-F Experience on Software Gone Wildhttps://blog.ipspace.net/2015/02/hands-on-tail-f-experience-on-software/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 13 Feb 2015 15:15:00 +0100https://blog.ipspace.net/2015/02/hands-on-tail-f-experience-on-software/ <p><a href="/2013/05/tail-f-network-control-system-first/">Tail-F NCS</a> implements one of the most realistic approaches to service abstraction (the cornerstone of SDN – at least in my humble opinion) – an orchestration system that automates service provisioning on existing infrastructure.</p> <p>Is the product really as good as everyone claims? How hard is it to use? How steep is the learning curve? <a href="http://learning.nil.com/about-nil-learning/people/person/bostjan-sustar/">Boštjan Šuštar</a> and <a href="http://learning.nil.com/about-nil-learning/people/person/marko-tisler/">Marko Tišler</a> from <a href="http://www.nil.com/">NIL Data Communications</a> have months of hands-on experience and were willing to share it in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_22-Hands-On_Tail-F_NCS.mp3">Episode 22</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a>.</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_22-Hands-On_Tail-F_NCS.mp3">Enjoy the show</a></div> devnull@ipspace.net (ipSpace.net)noTail-F NCS implements one of the most realistic approaches to service abstraction (the cornerstone of SDN – at least in my humble opinion) – an orchestration system that automates service provisioning on existing infrastructure. Is the product really as good as everyone claims? How hard is it to use? How steep is the learning curve? Boštjan Šuštar and Marko Tišler from NIL Data Communications have months of hands-on experience and were willing to share it in Episode 22 of Software Gone Wild. Enjoy the showipSpace.netTail-F NCS implements one of the most realistic approaches to service abstraction (the cornerstone of SDN – at least in my humble opinion) – an orchestration system that automates service provisioning on existing infrastructure. Is the product really as good as everyone claims? How hard is it to use? How steep is the learning curve? Boštjan Šuštar and Marko Tišler from NIL Data Communications have months of hands-on experience and were willing to share it in Episode 22 of Software Gone Wild. Enjoy the showSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationWhiteboarding Cisco ACI on Software Gone Wildhttps://blog.ipspace.net/2015/02/whiteboarding-cisco-aci-on-software/?utm_source=atom_feedpodcastSDNdata centerfabricSoftware Gone WildFri, 6 Feb 2015 11:07:00 +0100https://blog.ipspace.net/2015/02/whiteboarding-cisco-aci-on-software/ <p>Late last year David Gee and I wanted to test another interesting gizmo: an <a href="https://awwapp.com/">online virtual whiteboard</a>. David was pondering some interesting aspect of Cisco ACI and they seemed like a perfect topic for an impromptu discussion.<div class='jump-link'><a href='https://blog.ipspace.net/2015/02/whiteboarding-cisco-aci-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)Troubleshooting VMware NSX on Software Gone Wildhttps://blog.ipspace.net/2015/01/troubleshooting-vmware-nsx-on-software/?utm_source=atom_feedpodcastSDNSoftware Gone WildvirtualizationFri, 30 Jan 2015 08:03:00 +0100https://blog.ipspace.net/2015/01/troubleshooting-vmware-nsx-on-software/ <p>When we started planning a VMware NSX-focused podcast episode with <a href="https://telecomoccasionally.wordpress.com/about/">Dmitri Kalintsev</a>, I <a href="/2015/01/pick-topic-for-nsx-deep-dive-software/">asked my readers</a> what topics they’d like to see covered. Two comments that we really liked were “<a href="/2015/01/pick-topic-for-nsx-deep-dive-software/#c2780660167526837932"><em>how do I get started with VMware NSX</em></a><em>?</em>” and “<a href="/2015/01/pick-topic-for-nsx-deep-dive-software/#c5601079697694038742"><em>how do I troubleshoot this stuff?</em></a>”<div class='jump-link'><a href='https://blog.ipspace.net/2015/01/troubleshooting-vmware-nsx-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhen we started planning a VMware NSX-focused podcast episode with Dmitri Kalintsev, I asked my readers what topics they’d like to see covered. Two comments that we really liked were “how do I get started with VMware NSX?” and “how do I troubleshoot this stuff?”Read more &hellip;ipSpace.netWhen we started planning a VMware NSX-focused podcast episode with Dmitri Kalintsev, I asked my readers what topics they’d like to see covered. Two comments that we really liked were “how do I get started with VMware NSX?” and “how do I troubleshoot this stuff?”Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSDN Router @ Spotify on Software Gone Wildhttps://blog.ipspace.net/2015/01/sdn-router-spotify-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 16 Jan 2015 10:32:00 +0100https://blog.ipspace.net/2015/01/sdn-router-spotify-on-software-gone-wild/ <p>Imagine you need a data center WAN edge router with multiple 10GE uplinks. You’d probably go for an ASR or a MX-series router, right? How about using a 2 Tbps ToR switch and an SDN solution to make it work with full Internet routing table?</p> <p class="warn">If you happen to have iTunes on your computer, please spend 10 seconds rating the podcast before you start listening to it. Thank you!<div class='jump-link'><a href='https://blog.ipspace.net/2015/01/sdn-router-spotify-on-software-gone-wild/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noImagine you need a data center WAN edge router with multiple 10GE uplinks. You’d probably go for an ASR or a MX-series router, right? How about using a 2 Tbps ToR switch and an SDN solution to make it work with full Internet routing table? If you happen to have iTunes on your computer, please spend 10 seconds rating the podcast before you start listening to it. Thank you!Read more &hellip;ipSpace.netImagine you need a data center WAN edge router with multiple 10GE uplinks. You’d probably go for an ASR or a MX-series router, right? How about using a 2 Tbps ToR switch and an SDN solution to make it work with full Internet routing table? If you happen to have iTunes on your computer, please spend 10 seconds rating the podcast before you start listening to it. Thank you!Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPalo Alto Virtual Firewalls on Software Gone Wildhttps://blog.ipspace.net/2015/01/palo-alto-virtual-firewalls-on-software/?utm_source=atom_feedfirewallsecuritypodcastSoftware Gone WildFri, 9 Jan 2015 09:25:00 +0100https://blog.ipspace.net/2015/01/palo-alto-virtual-firewalls-on-software/ <p>One of the interesting challenges in the Software-Defined Data Center world is the integration of network and security services with the compute infrastructure and network virtualization. Palo Alto claims to have tightly integrated their firewalls with VMware NSX and numerous cloud orchestration platforms - it was time to figure out how that’s done, so we decided to go on a field trip into the scary world of security.<div class='jump-link'><a href='https://blog.ipspace.net/2015/01/palo-alto-virtual-firewalls-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noOne of the interesting challenges in the Software-Defined Data Center world is the integration of network and security services with the compute infrastructure and network virtualization. Palo Alto claims to have tightly integrated their firewalls with VMware NSX and numerous cloud orchestration platforms - it was time to figure out how that’s done, so we decided to go on a field trip into the scary world of security.Read more &hellip;ipSpace.netOne of the interesting challenges in the Software-Defined Data Center world is the integration of network and security services with the compute infrastructure and network virtualization. Palo Alto claims to have tightly integrated their firewalls with VMware NSX and numerous cloud orchestration platforms - it was time to figure out how that’s done, so we decided to go on a field trip into the scary world of security.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationL2VPN over IPv6 with Snabb Switch on Software Gone Wildhttps://blog.ipspace.net/2014/12/l2vpn-over-ipv6-with-snabb-switch-on/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 12 Dec 2014 14:23:00 +0100https://blog.ipspace.net/2014/12/l2vpn-over-ipv6-with-snabb-switch-on/ <p><a href="/2014/09/snabb-switch-deep-dive-on-software-gone/">Highly customizable high-speed virtual switch</a> written in Lua sounds great, but is it really that easy to use? <a href="http://simon.leinen.ch/">Simon Leinen</a> was kind enough to get me in touch with <a href="https://tnc2014.terena.org/core/user/474">Alex Gall</a>, his colleague at Switch, who's working on an interesting project: implementing L2VPN over IPv6 with Snabb Switch.<div class='jump-link'><a href='https://blog.ipspace.net/2014/12/l2vpn-over-ipv6-with-snabb-switch-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noHighly customizable high-speed virtual switch written in Lua sounds great, but is it really that easy to use? Simon Leinen was kind enough to get me in touch with Alex Gall, his colleague at Switch, who's working on an interesting project: implementing L2VPN over IPv6 with Snabb Switch.Read more &hellip;ipSpace.netHighly customizable high-speed virtual switch written in Lua sounds great, but is it really that easy to use? Simon Leinen was kind enough to get me in touch with Alex Gall, his colleague at Switch, who's working on an interesting project: implementing L2VPN over IPv6 with Snabb Switch.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationTransactional Thoughts on a Stormy Nighthttps://blog.ipspace.net/2014/11/transactional-thoughts-on-stormy-night/?utm_source=atom_feedpodcastSDNSoftware Gone WildWed, 26 Nov 2014 13:51:00 +0100https://blog.ipspace.net/2014/11/transactional-thoughts-on-stormy-night/ <p>It was a dark stormy autumn night and three networking engineers had nothing better to do than ponder the heavy topics of transactional consistency in a distributed SDN environment in <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_16-Transactional_Thoughts_on_a_Stormy_Night.mp3">Episode 16</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast.</p> <p>Here are a few of the topics that crossed our minds:<div class='jump-link'><a href='https://blog.ipspace.net/2014/11/transactional-thoughts-on-stormy-night/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIt was a dark stormy autumn night and three networking engineers had nothing better to do than ponder the heavy topics of transactional consistency in a distributed SDN environment in Episode 16 of Software Gone Wild podcast. Here are a few of the topics that crossed our minds:Read more &hellip;ipSpace.netIt was a dark stormy autumn night and three networking engineers had nothing better to do than ponder the heavy topics of transactional consistency in a distributed SDN environment in Episode 16 of Software Gone Wild podcast. Here are a few of the topics that crossed our minds:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationViptela SEN: Hybrid WAN Connectivity with an SDN Twisthttps://blog.ipspace.net/2014/11/viptela-sen-hybrid-wan-connectivity/?utm_source=atom_feedDMVPNpodcastSDNWANSoftware Gone WildFri, 14 Nov 2014 09:05:00 +0100https://blog.ipspace.net/2014/11/viptela-sen-hybrid-wan-connectivity/<p>Like many of us Khalid Raza wasted countless hours sitting in meetings discussing <a href="http://www.ipspace.net/Integrating_Internet_VPN_with_MPLS_VPN_WAN">hybrid WAN connectivity designs</a> using a random combination of <a href="http://www.ipspace.net/DMVPN">DMVPN</a>, IPsec, PfR, and one or more routing protocols&hellip; and decided to try to create a better solution to the problem.</p> <div class="info"> Viptela was acquired by Cisco not long after we recorded this podcast. I left the podcast online for historic reasons. </div><div class='jump-link'><a href='https://blog.ipspace.net/2014/11/viptela-sen-hybrid-wan-connectivity/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noLike many of us Khalid Raza wasted countless hours sitting in meetings discussing hybrid WAN connectivity designs using a random combination of DMVPN, IPsec, PfR, and one or more routing protocols&hellip; and decided to try to create a better solution to the problem. Viptela was acquired by Cisco not long after we recorded this podcast. I left the podcast online for historic reasons. Read more &hellip;ipSpace.netLike many of us Khalid Raza wasted countless hours sitting in meetings discussing hybrid WAN connectivity designs using a random combination of DMVPN, IPsec, PfR, and one or more routing protocols&hellip; and decided to try to create a better solution to the problem. Viptela was acquired by Cisco not long after we recorded this podcast. I left the podcast online for historic reasons. Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationFlipIT Cloud: Orchestrating IT-as-a-Service on Software Gone Wildhttps://blog.ipspace.net/2014/11/flipit-cloud-orchestrating-it-as/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 7 Nov 2014 09:06:00 +0100https://blog.ipspace.net/2014/11/flipit-cloud-orchestrating-it-as/ <p>Imagine being an IT administrator running a multi-tenant enterprise environment (example: an SMB business center). How many things would you have to configure to add a new tenant? How about adding a new user for an existing tenant? </p> <p>The engineers behind the scenes of <a href="http://flipitcloud.com/">FlipIT cloud service</a> ended up with a 40-page configuration guide when they started the service years ago… and obviously decided full-blown automation is the only way to go.<div class='jump-link'><a href='https://blog.ipspace.net/2014/11/flipit-cloud-orchestrating-it-as/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noImagine being an IT administrator running a multi-tenant enterprise environment (example: an SMB business center). How many things would you have to configure to add a new tenant? How about adding a new user for an existing tenant? The engineers behind the scenes of FlipIT cloud service ended up with a 40-page configuration guide when they started the service years ago… and obviously decided full-blown automation is the only way to go.Read more &hellip;ipSpace.netImagine being an IT administrator running a multi-tenant enterprise environment (example: an SMB business center). How many things would you have to configure to add a new tenant? How about adding a new user for an existing tenant? The engineers behind the scenes of FlipIT cloud service ended up with a 40-page configuration guide when they started the service years ago… and obviously decided full-blown automation is the only way to go.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationCumulus Linux in Real Life on Software Gone Wildhttps://blog.ipspace.net/2014/10/cumulus-linux-in-real-life-on-software/?utm_source=atom_feedCumulus LinuxSDNSoftware Gone WildpodcastMon, 27 Oct 2014 10:25:00 +0100https://blog.ipspace.net/2014/10/cumulus-linux-in-real-life-on-software/<p>A year ago Matthew Stone first heard about Cumulus Linux when I <a href="http://packetpushers.net/show-162-the-bourbonator-rises-at-nfd6/">ranted about it on a Packet Pushers podcast</a> (which only proves that any publicity is good publicity even though some people thought otherwise at that time), and when his cloud service provider company started selecting ToR switches he considered Cumulus together with Cisco and Arista&hellip; and chose Cumulus.</p><div class='jump-link'><a href='https://blog.ipspace.net/2014/10/cumulus-linux-in-real-life-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA year ago Matthew Stone first heard about Cumulus Linux when I ranted about it on a Packet Pushers podcast (which only proves that any publicity is good publicity even though some people thought otherwise at that time), and when his cloud service provider company started selecting ToR switches he considered Cumulus together with Cisco and Arista&hellip; and chose Cumulus.Read more &hellip;ipSpace.netA year ago Matthew Stone first heard about Cumulus Linux when I ranted about it on a Packet Pushers podcast (which only proves that any publicity is good publicity even though some people thought otherwise at that time), and when his cloud service provider company started selecting ToR switches he considered Cumulus together with Cisco and Arista&hellip; and chose Cumulus.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationBorder6 Non-Stop Internet: a Commercial BGP-Based SDNhttps://blog.ipspace.net/2014/10/border6-non-stop-internet-commercial/?utm_source=atom_feedSDNBGPSoftware Gone WildThu, 16 Oct 2014 07:31:00 +0200https://blog.ipspace.net/2014/10/border6-non-stop-internet-commercial/ <p>Several <a href="/2013/10/exception-routing-with-bgp-sdn-done/">SDN solutions that coexist with the traditional control- and data planes</a> instead of <a href="/2013/12/control-plane-in-openflow-networks/">ripping them out and replacing them</a> with the new <a href="https://www.youtube.com/watch?v=E8VUONhV9NY">awesomesauce</a> use <a href="http://tools.ietf.org/html/draft-lapukhov-bgp-sdn-00">BGP to modify the network’s forwarding behavior</a>.</p> <p><a href="http://www.border6.com">Border6</a> decided to turn that concept into a <a href="http://www.border6.com/?q=solutions">commercial product</a> that we dissected in <a href="http://demo.ipspace.net/get/Show_12-Commercial_BGP-Based_SDN_Border6.mp4">Episode 12</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild podcast</a>.</p> <p><a href="http://demo.ipspace.net/get/Show_12-Commercial_BGP-Based_SDN_Border6.mp4">Enjoy the show</a> (this time in video format). </p> devnull@ipspace.net (ipSpace.net)Network Automation Tools with Jason Edelman on Sofware Gone Wildhttps://blog.ipspace.net/2014/10/network-automation-tools-with-jason/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 3 Oct 2014 12:17:00 +0200https://blog.ipspace.net/2014/10/network-automation-tools-with-jason/ <p>The stars have finally aligned, and after months of scheduling <a href="http://www.jedelman.com/about.html">Jason</a> and myself found time to chat about network automation tools and all the other exciting things Jason is doing (and <a href="http://www.jedelman.com/">blogging about</a>).</p> <p>We started with easy topics:<div class='jump-link'><a href='https://blog.ipspace.net/2014/10/network-automation-tools-with-jason/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThe stars have finally aligned, and after months of scheduling Jason and myself found time to chat about network automation tools and all the other exciting things Jason is doing (and blogging about). We started with easy topics:Read more &hellip;ipSpace.netThe stars have finally aligned, and after months of scheduling Jason and myself found time to chat about network automation tools and all the other exciting things Jason is doing (and blogging about). We started with easy topics:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSchprokits with Jeremy Schulman on Software Gone Wildhttps://blog.ipspace.net/2014/09/schprokits-with-jeremy-schulman-on/?utm_source=atom_feedpodcastSDNSoftware Gone WildFri, 26 Sep 2014 07:19:00 +0200https://blog.ipspace.net/2014/09/schprokits-with-jeremy-schulman-on/ <p>Jeremy Schulman was the driving force behind the Puppet agent that Juniper implemented on some Junos switches (one of the first fully supported Puppet-on-a-switch implementations). In the meantime, he quit Juniper and started his own company focused on a network automation product – more than enough reasons to <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_10-Schprokits_with_Jeremy_Schulman.mp3">chat with him on Software Gone Wild</a>.<div class='jump-link'><a href='https://blog.ipspace.net/2014/09/schprokits-with-jeremy-schulman-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noJeremy Schulman was the driving force behind the Puppet agent that Juniper implemented on some Junos switches (one of the first fully supported Puppet-on-a-switch implementations). In the meantime, he quit Juniper and started his own company focused on a network automation product – more than enough reasons to chat with him on Software Gone Wild.Read more &hellip;ipSpace.netJeremy Schulman was the driving force behind the Puppet agent that Juniper implemented on some Junos switches (one of the first fully supported Puppet-on-a-switch implementations). In the meantime, he quit Juniper and started his own company focused on a network automation product – more than enough reasons to chat with him on Software Gone Wild.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationVirtual Networking in CloudStackhttps://blog.ipspace.net/2014/09/virtual-networking-in-cloudstack/?utm_source=atom_feedpodcastSDNcloudSoftware Gone WildFri, 19 Sep 2014 07:13:00 +0200https://blog.ipspace.net/2014/09/virtual-networking-in-cloudstack/ <p>If you mention open-source cloud orchestration tools these days, everyone immediately thinks about OpenStack (including the people who spent months or years trying to make it ready for production use). In the meantime, there are at least two other comparable open-source products (CloudStack and Eucalyptus) that nobody talks about. Obviously having a working product is not as sexy as having <a href="http://www.openstack.org/foundation/companies/">50+ vendors</a> and <a href="http://digitaljournal.com/pr/2175071">analysts</a> producing press releases.<div class='jump-link'><a href='https://blog.ipspace.net/2014/09/virtual-networking-in-cloudstack/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noIf you mention open-source cloud orchestration tools these days, everyone immediately thinks about OpenStack (including the people who spent months or years trying to make it ready for production use). In the meantime, there are at least two other comparable open-source products (CloudStack and Eucalyptus) that nobody talks about. Obviously having a working product is not as sexy as having 50+ vendors and analysts producing press releases.Read more &hellip;ipSpace.netIf you mention open-source cloud orchestration tools these days, everyone immediately thinks about OpenStack (including the people who spent months or years trying to make it ready for production use). In the meantime, there are at least two other comparable open-source products (CloudStack and Eucalyptus) that nobody talks about. Obviously having a working product is not as sexy as having 50+ vendors and analysts producing press releases.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationOpen-Source Hybrid Cloud Reference Architecture on Software Gone Wildhttps://blog.ipspace.net/2014/09/open-source-hybrid-cloud-reference/?utm_source=atom_feeddesignpodcastdata centercloudSoftware Gone WildThu, 11 Sep 2014 07:19:00 +0200https://blog.ipspace.net/2014/09/open-source-hybrid-cloud-reference/ <p>A while ago Rick Parker told me about his amazing project: he started a <a href="http://www.meetup.com/Enterprise-Cloud/">meetup group</a> that will build a reference private/hybrid cloud heavily relying on virtualized network services, and publish all documentation related to their effort, from high-level architecture to device and software configurations, and wiring plans.</p> <p>In <a href="http://media.blubrry.com/ipspace/stream.ipspace.net/nuggets/podcast/Show_8-Hybrid_Cloud_Reference_Architecture.mp3">Episode 8 of Software Gone Wild</a> Rick told us more about his project, and we simply couldn’t avoid a long list of topics including:<div class='jump-link'><a href='https://blog.ipspace.net/2014/09/open-source-hybrid-cloud-reference/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noA while ago Rick Parker told me about his amazing project: he started a meetup group that will build a reference private/hybrid cloud heavily relying on virtualized network services, and publish all documentation related to their effort, from high-level architecture to device and software configurations, and wiring plans. In Episode 8 of Software Gone Wild Rick told us more about his project, and we simply couldn’t avoid a long list of topics including:Read more &hellip;ipSpace.netA while ago Rick Parker told me about his amazing project: he started a meetup group that will build a reference private/hybrid cloud heavily relying on virtualized network services, and publish all documentation related to their effort, from high-level architecture to device and software configurations, and wiring plans. In Episode 8 of Software Gone Wild Rick told us more about his project, and we simply couldn’t avoid a long list of topics including:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSnabb Switch Deep Dive on Software Gone Wildhttps://blog.ipspace.net/2014/09/snabb-switch-deep-dive-on-software-gone/?utm_source=atom_feedpodcastSDNswitchingSoftware Gone WildvirtualizationThu, 4 Sep 2014 07:02:00 +0200https://blog.ipspace.net/2014/09/snabb-switch-deep-dive-on-software-gone/ <p>The <a href="/2014/06/snabb-switch-and-nfv-on-openstack-in/">pilot episode</a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild podcast</a> featuring <a href="http://www.snabb.co">Snabb Switch</a> created plenty of additional queries (and thousands of downloads) – it was obviously time for another <a href="http://media.blubrry.com/ipspace/www.ipSpace.net/nuggets/podcast/Show_7-Snabb_Switch_Deep_Dive.mp3">deep dive episode</a> discussing the intricate innards of this interesting virtual switch.</p> <p>During the deep dive <a href="http://www.lukego.com">Luke Gorrie</a>, the mastermind behind the <a href="http://www.snabb.co">Snabb Switch</a>, answered a long list of questions, including:<div class='jump-link'><a href='https://blog.ipspace.net/2014/09/snabb-switch-deep-dive-on-software-gone/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThe pilot episode of Software Gone Wild podcast featuring Snabb Switch created plenty of additional queries (and thousands of downloads) – it was obviously time for another deep dive episode discussing the intricate innards of this interesting virtual switch. During the deep dive Luke Gorrie, the mastermind behind the Snabb Switch, answered a long list of questions, including:Read more &hellip;ipSpace.netThe pilot episode of Software Gone Wild podcast featuring Snabb Switch created plenty of additional queries (and thousands of downloads) – it was obviously time for another deep dive episode discussing the intricate innards of this interesting virtual switch. During the deep dive Luke Gorrie, the mastermind behind the Snabb Switch, answered a long list of questions, including:Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationToolsmith @ Netflix on Software Gone Wildhttps://blog.ipspace.net/2014/08/toolsmith-netflix-on-software-gone-wild/?utm_source=atom_feedpodcastSDNSoftware Gone WildWed, 27 Aug 2014 07:54:00 +0200https://blog.ipspace.net/2014/08/toolsmith-netflix-on-software-gone-wild/ <p>I first met <a href="https://www.linkedin.com/in/elisaj">Elisa Jasinska</a> when she had one of the coolest job titles I ever saw: Senior Packet Herder. Her current job title is almost as cool: Senior Network Toolsmith @ Netflix – obviously an ideal guest for the <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild">Software Gone Wild</a> podcast.</p> <p>In our <a href="http://media.blubrry.com/ipspace/www.ipSpace.net/nuggets/podcast/Show_6-Toolsmith_%20_Netflix.mp3">short chat</a> she described some of the tools she’s working on, including an adaptation of <a href="/2014/08/pmacct-traffic-analysis-tool-with/">pmacct</a> to environments with numerous BGP exit points (more details in her <a href="https://www.youtube.com/watch?v=4VnwwkZG1n8">NANOG presentation</a>).</p> <div class="jump-link"><a href="http://media.blubrry.com/ipspace/www.ipSpace.net/nuggets/podcast/Show_6-Toolsmith_%20_Netflix.mp3">Listen to the podcast</a></div> devnull@ipspace.net (ipSpace.net)noI first met Elisa Jasinska when she had one of the coolest job titles I ever saw: Senior Packet Herder. Her current job title is almost as cool: Senior Network Toolsmith @ Netflix – obviously an ideal guest for the Software Gone Wild podcast. In our short chat she described some of the tools she’s working on, including an adaptation of pmacct to environments with numerous BGP exit points (more details in her NANOG presentation). Listen to the podcastipSpace.netI first met Elisa Jasinska when she had one of the coolest job titles I ever saw: Senior Packet Herder. Her current job title is almost as cool: Senior Network Toolsmith @ Netflix – obviously an ideal guest for the Software Gone Wild podcast. In our short chat she described some of the tools she’s working on, including an adaptation of pmacct to environments with numerous BGP exit points (more details in her NANOG presentation). Listen to the podcastSDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationPmacct: the Traffic Analysis Tool with Unpronounceable Namehttps://blog.ipspace.net/2014/08/pmacct-traffic-analysis-tool-with/?utm_source=atom_feedpodcastnetwork managementSoftware Gone WildWed, 20 Aug 2014 08:33:00 +0200https://blog.ipspace.net/2014/08/pmacct-traffic-analysis-tool-with/ <p>SDN evangelists talking about <a href="/2012/05/openflow-google-brilliant-but-not/">centralized traffic engineering</a>, flow steering or <a href="/2012/02/bandwidth-on-demand-is-openflow-silver/">bandwidth calendaring</a> sometimes tend to gloss over the first rule of successful traffic engineering: Know Thy Traffic.</p> <p>In a world ruled by OpenFlow you’d <a href="/2014/01/network-monitoring-with-openflow/">expect the OpenFlow controller to know all the traffic</a>; in more traditional networks we use technologies like NetFlow, sFlow or IPFIX to report the traffic statistics – but regardless of the underlying mechanism, you need a tool that will collect the statistics, aggregate them in a way that makes them usable to the network operators, report them, and potentially act on the deviations.<div class='jump-link'><a href='https://blog.ipspace.net/2014/08/pmacct-traffic-analysis-tool-with/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noSDN evangelists talking about centralized traffic engineering, flow steering or bandwidth calendaring sometimes tend to gloss over the first rule of successful traffic engineering: Know Thy Traffic. In a world ruled by OpenFlow you’d expect the OpenFlow controller to know all the traffic; in more traditional networks we use technologies like NetFlow, sFlow or IPFIX to report the traffic statistics – but regardless of the underlying mechanism, you need a tool that will collect the statistics, aggregate them in a way that makes them usable to the network operators, report them, and potentially act on the deviations.Read more &hellip;ipSpace.netSDN evangelists talking about centralized traffic engineering, flow steering or bandwidth calendaring sometimes tend to gloss over the first rule of successful traffic engineering: Know Thy Traffic. In a world ruled by OpenFlow you’d expect the OpenFlow controller to know all the traffic; in more traditional networks we use technologies like NetFlow, sFlow or IPFIX to report the traffic statistics – but regardless of the underlying mechanism, you need a tool that will collect the statistics, aggregate them in a way that makes them usable to the network operators, report them, and potentially act on the deviations.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Automation @ Spotify on Software Gone Wildhttps://blog.ipspace.net/2014/07/network-automation-spotify-on-software/?utm_source=atom_feedpodcastSDNSoftware Gone WildThu, 17 Jul 2014 07:56:00 +0200https://blog.ipspace.net/2014/07/network-automation-spotify-on-software/ <p>What can you do if you have a small team of networking engineers responsible for four ever-growing data centers (with several hundred network devices in each of them)? There’s only one answer: you try to survive by automating as much as you can.</p> <p>In the <a href="http://media.blubrry.com/ipspace/www.ipSpace.net/nuggets/podcast/Show_4-Ansible_%20_Spotify_with_David_Barosso.mp3"><span class="high">fourth episode</span></a> of <a href="http://www.ipspace.net/Podcast/Software_Gone_Wild"><span class="high">Software Gone Wild</span></a> podcast <a href="http://se.linkedin.com/in/dbarrosop"><span class="high">David Barosso</span></a> from <a href="https://www.spotify.com"><span class="high">Spotify</span></a> explains how they use network automation to cope with the ever-growing installed base without increasing the size of the networking team.<div class='jump-link'><a href='https://blog.ipspace.net/2014/07/network-automation-spotify-on-software/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noWhat can you do if you have a small team of networking engineers responsible for four ever-growing data centers (with several hundred network devices in each of them)? There’s only one answer: you try to survive by automating as much as you can. In the fourth episode of Software Gone Wild podcast David Barosso from Spotify explains how they use network automation to cope with the ever-growing installed base without increasing the size of the networking team.Read more &hellip;ipSpace.netWhat can you do if you have a small team of networking engineers responsible for four ever-growing data centers (with several hundred network devices in each of them)? There’s only one answer: you try to survive by automating as much as you can. In the fourth episode of Software Gone Wild podcast David Barosso from Spotify explains how they use network automation to cope with the ever-growing installed base without increasing the size of the networking team.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationThe F-Script with John Herbert on Software Gone Wildhttps://blog.ipspace.net/2014/07/the-f-script-with-john-herbert-on/?utm_source=atom_feedpodcastSDNSoftware Gone WildWed, 9 Jul 2014 07:11:00 +0200https://blog.ipspace.net/2014/07/the-f-script-with-john-herbert-on/ <p>The <a href="http://en.wikipedia.org/wiki/Human_evolution#Use_of_tools">use of tools</a> has accelerated human evolution and made us what we are today. Networking is no different, and yet <a href="/2013/03/where-is-my-vlan-provisioning/">there aren’t that many tool builders among the networking engineers</a>… or maybe all you need is a nudge and some hints on how to get started.<div class='jump-link'><a href='https://blog.ipspace.net/2014/07/the-f-script-with-john-herbert-on/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noThe use of tools has accelerated human evolution and made us what we are today. Networking is no different, and yet there aren’t that many tool builders among the networking engineers… or maybe all you need is a nudge and some hints on how to get started.Read more &hellip;ipSpace.netThe use of tools has accelerated human evolution and made us what we are today. Networking is no different, and yet there aren’t that many tool builders among the networking engineers… or maybe all you need is a nudge and some hints on how to get started.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationNetwork Programmability with David Gee on Software Gone Wildhttps://blog.ipspace.net/2014/07/network-programmability-with-david-gee/?utm_source=atom_feedpodcastSDNSoftware Gone WildWed, 2 Jul 2014 11:01:00 +0200https://blog.ipspace.net/2014/07/network-programmability-with-david-gee/ <p>For the second episode of Software Gone Wild I got a truly interesting guest: David Gee, a network engineer already working on numerous network programmability and orchestration deployment.</p> <p>During our half-hour chat we couldn’t avoid the question of whether every networking engineer will become a programmer and David provided an interesting answer: you don’t have to program, but you’ll definitely have to start thinking more like a good programmer.<div class='jump-link'><a href='https://blog.ipspace.net/2014/07/network-programmability-with-david-gee/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noFor the second episode of Software Gone Wild I got a truly interesting guest: David Gee, a network engineer already working on numerous network programmability and orchestration deployment. During our half-hour chat we couldn’t avoid the question of whether every networking engineer will become a programmer and David provided an interesting answer: you don’t have to program, but you’ll definitely have to start thinking more like a good programmer.Read more &hellip;ipSpace.netFor the second episode of Software Gone Wild I got a truly interesting guest: David Gee, a network engineer already working on numerous network programmability and orchestration deployment. During our half-hour chat we couldn’t avoid the question of whether every networking engineer will become a programmer and David provided an interesting answer: you don’t have to program, but you’ll definitely have to start thinking more like a good programmer.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,AutomationSnabb Switch and NFV on OpenStack in Software Gone Wildhttps://blog.ipspace.net/2014/06/snabb-switch-and-nfv-on-openstack-in/?utm_source=atom_feedpodcastcloudSoftware Gone WildvirtualizationWed, 25 Jun 2014 07:41:00 +0200https://blog.ipspace.net/2014/06/snabb-switch-and-nfv-on-openstack-in/ <p>Last September I received a peculiar tweet from Luke Gorrie pointing me to a software switch <a href="https://twitter.com/lukego/status/327714050219847680">pushing 200 Gbps through an Intel server</a> literally hours after I’d watched the <a href="https://www.youtube.com/watch?v=SUebF3UJiU4">Deutsche Telekom Terastream presentation</a>, so I mentioned <a href="http://snabb.co/">Luke’s Snabb Switch</a> as a potential performance solution in an email to Ian Farrer… and before Ian managed to reply, Luke was already working for Deutsche Telekom.<div class='jump-link'><a href='https://blog.ipspace.net/2014/06/snabb-switch-and-nfv-on-openstack-in/'>Read more &hellip;</a></div>devnull@ipspace.net (ipSpace.net)noLast September I received a peculiar tweet from Luke Gorrie pointing me to a software switch pushing 200 Gbps through an Intel server literally hours after I’d watched the Deutsche Telekom Terastream presentation, so I mentioned Luke’s Snabb Switch as a potential performance solution in an email to Ian Farrer… and before Ian managed to reply, Luke was already working for Deutsche Telekom.Read more &hellip;ipSpace.netLast September I received a peculiar tweet from Luke Gorrie pointing me to a software switch pushing 200 Gbps through an Intel server literally hours after I’d watched the Deutsche Telekom Terastream presentation, so I mentioned Luke’s Snabb Switch as a potential performance solution in an email to Ian Farrer… and before Ian managed to reply, Luke was already working for Deutsche Telekom.Read more &hellip;SDN,NFV,SDDC,Ansible,Puppet,Chef,Network,programmability,Automation