Networkers-online.com

BGP Routing Information Base (RIB)

Wael Osama — Thu, 11 Mar 2010 14:30:40 +0000

BGP is an intimate friend for all service provider engineers. Without BGP there is no internet, there is no MPLS VPN and there are no many other things now and in the days to come. I believe its healthy to visit your friends from time to time and know how you live Any BGP [...]

MTU and ping size confusion

mmahmoud — Sun, 07 Feb 2010 15:44:58 +0000

I am very glade to return back after pausing posting for a while. Actually we were very busy the last few months evaluating, designing and preparing for our company’s backbone migration, a little C Vs J with all its fun Anyway, while going through the low level design we faced a little confusion when [...]

How to select your core routers?

Wael Osama — Mon, 04 Jan 2010 18:34:35 +0000

This question comes to my mind every time we are faced by choosing a new device for our network or whenever I read about hardware architecture of networking devices. However, when the time comes for choosing routers for a large network migration I thought it will be wise to have a checklist or a model [...]

CRS-1 Hardware Overview

Wael Osama — Wed, 23 Dec 2009 10:33:53 +0000

After introducing the Cisco CRS-1 router in a previous post, We are going to delve more into the hardware architecture of this router. I believe we have to start by defining the main hardware components of the CRS-1 router and briefly describe their functions. In later posts we are going to study each part in [...]

Simple Ideas Create Great Realities

Wael Osama — Sat, 19 Dec 2009 18:14:09 +0000

“Imagine a world in which every single person on the planet has free access to the sum of all human knowledge.” Jimmy Wales. All the great achievements in human history began as a simple idea in someone’s head. The above statment is no different. The above statement was nothing but the vision of Jimmy Wales the [...]

Carrier Routing System (CRS-1) Overview

Wael Osama — Thu, 10 Dec 2009 11:45:33 +0000

We have finished the physical installation of our CRS-1 routers this week, so I thought it would be nice to have some discussions about CRS-1, Juniper T-series and some general high end platform concepts. I believe this will be a series of posts, we can start with the CRS-1 overview. The CRS-1 is a carrier class [...]

BGP table analysis and statistics

Wael Osama — Wed, 09 Dec 2009 14:38:13 +0000

For those of you who are interested in obtaining some useful information about the BGP table (Internet routing table), check out the following websites for some useful reports, analysis and statistics. Nice resources for daily work, research and planning. Play around: BGP Routing Table Analysis Reports. Check bgp4.as also for a ton of tools and information about the [...]

Cisco or Juniper, Which one should I choose?

Wael Osama — Thu, 03 Dec 2009 11:00:38 +0000

Being in charge of choosing the right boxes for a service provider network is definitely a hard task specially if it is a large network migration and this is exactly what we were doing in the past few months. The challenge here is that your are faced with a lot of choices that will affect [...]

Where have we been?

Wael Osama — Wed, 21 Oct 2009 20:45:24 +0000

It has been about five moths now since I wrote my last post here. I am really sorry about that but we were too busy doing a lot of things which may provide a rich content for our posts on the next few months. Actually we were consumed preparing for exams, big backbone network migration [...]

VRF Selection Based on Source IP Addresses

mmahmoud — Thu, 09 Apr 2009 13:17:00 +0000

In this post we are going to cover a nice tool, actually I’ve never used it in production, but I was fully testing it during my CCIE SP lab preparations and wish to share it with you. It’s nice to have such a tool in your tool box when dealing with complex designs. The VRF Selection [...]