cisco router

Cisco CCNP Router – BGP Troubleshooting

2013-03-12T01:56:00.000-07:00

Every time you troubleshoot your BGP (Border Gateway Protocol), always follow a tried and tested troubleshooting model. That way, you can work more efficiently and probably even resolve the problem much faster. We usually follow an 8-point troubleshooting model like the one below:

u Define the problem

u Gather the facts

u Document the facts

u Consider the possibilities

u Create an action plan

u Implement the action plan

u Repeat until resolution

u Document the solution

Just like in most protocols, there are some very specific, common issues and problems, as well as their corresponding solutions. Here in our article on BGP troubleshooting, we’ll be looking at these four potential problems/issues:

Neighbor relationship problems
Route advertisement issues
Routes missing from the table
Address summarization problems

Neighbor Relationship Problems

There are a number of possible reasons that may prevent neighbors from establishing a relationship. Here are some of the most common causes of neighbor relationship problems:Possible Cause: Layer 2 or Interface is down

If the Layer 2 process or Interface is down, it may prevent a neighbor relationship from forming. The easiest way to determine that this is the problem when it’s stuck in the Active or Idle state is by executing the show interface <slot/port>. For example, execute: show interfaces fastethernet 0/0 or show interfaces gigabitethernet 0/0 When the output is displayed, look at the interface that’s facing the BGP peer. You should be able to see a line where it says something like:

Fast Ethernet 0/0 is up, line protocol is up.

The first part (Fast Ethernet 0/0 is up) is talking about the physical hardware portion, while the second part (line protocol is up) is talking about the Layer 2 process.

So if you see something like: Fast Ethernet 0/0 is up, line protocol is down, that means the physical interface is fine but Ethernet keepalive are not sent/received on the interface. Sometimes, the reason is that something isn’t plugged-in on the other side. Another reason could be you simply have a bad cable.

If, however, the interface shows to be administratively down, then you can remedy that by simply issuing the no shutdown command on the interface.

In figuring out Layer 1 and Layer 2 problems, always start at Layer 1 and work your way up. Troubleshoot and solve the Layer 1 and Layer 2 issues on that particular interface. If it’s a hardware failure, if it’s a cable failure, or something more subtle, this method will be the best way to take care of this particular cause. Possible Cause: Incorrect IP address used in neighbor statement in BGP An incorrect IP address in the neighbor statement in BGP may also cause neighbor relationship problems.

Consider this diagram:

So, for example, in router R1, the configuration should be: router bgp 65001 neighbor 10.99.99.6 remote-as 65006 (this is the neighbor statement for R6, for peering)

Conversely, on router R6, the statement in the configuration should be: router bgp 65006neighbor 10.99.99.1 remote-as 65001 If, for example, the IP address on either R1 or R6 is wrong, the relationship will not form. So the easiest way to figure out if there’s a problem is to first execute the show ipbgp summary command. It will show you the state of the neighbor relationship, how many prefixes if any are being received, and whether the neighbor is stuck in Idle or Active state.

In addition to that, you can also execute the show running config command to verify that the peer address in the neighbor statements are correctly configured in BGP.

One of the things that’s going to be helpful is to: go in using PuTTY, SecureCRT, Tera Term or whatever terminal services program you’re most comfortable with; highlight the BGP section; paste the configuration into Notepad; and then go into the neighbor router and do the same thing. See if the neighbor configuration statements are in fact correct. If they’re not correct, delete the neighbor statement and recreate them with the correct IP addresses. Possible Cause: Configured eBGP peers are not directly connected although eBGP peers that aren’t directly connected can still have neighbor relationships, an additional command must be used and a special path must be in place for the neighbor relationship to work.

You can determine whether the neighbor is more than one hop away by executing thetraceroute<peer ip> command. You’ll be able to tell very easily by the number of different sections and hops shown in the output.

Once you discover that the neighbor is in fact more than one hop away, you can go back into the BGP configuration and put in the statement: neighbor <peer ip>ebgp-multihop<ttl>. ttlstands for time-to-live, which can be a value from 1 to 255 and which refers to the maximum number of hops that can be taken to reach the peer. If it’s 2 hops away, you put 2. If it’s 3 hops away, you put 3, and so on. You may also leave that parameter blank. If you do that, the default value of 255 will be applied.

Another thing you can use is the show tcp command, which you execute in the command-line. It will show you whether a TCP connection is up and in progress with that particular neighbor. Subsequently, it will allow you to verify establishment of a TCP session on port 179 toward a BGP peer. Possible Cause: Misconfigured neighbor authentication Another cause that’s very common for neighbor relationships not forming in BGP is the failure to configure the correct key in the password statement.

If you do a show ipbgp summary and you see that the neighbor relationships are indeed stuck in Active or Idle, the easiest way to resolve this is to execute the show running configcommand and then verify that the neighbor <peer ip> password <key> command is present on both peers and that the configured keys match.

Again, it would help if you copy those snippets and paste them into Notepad. That way, you can view the snippets all by themselves as you try to compare them and spot anything missing or mistyped. Remember that the key is case-sensitive. If that statement is incorrect, you don’t have to delete the entire configuration. Just recreate the neighbor <peer ip> password <key> statements on both BGP peers. Possible Cause: Unicast traffic being blocked between devices this possible cause for neighbor relationships not forming is not as common as those mentioned earlier. However, it’s still a possible cause nevertheless. In this case, Unicast traffic between the peers is being blocked. Blocking can be caused by a firewall, an access list, or a variety of different things.

Most likely, it’s going to be something configured on one or the other peers that may be blocking it but if there’s an intermediate device, then you’ll have to take a good look at that device’s configuration as well.

But in the particular device in question, execute the show ip interface and show access listcommands. Look at all the access lists, see if anything is being applied on the interface facing that particular neighbor, and if there is, either alters the access list to allow the traffic or you may have to alter it altogether.

Once you’re done with that, make sure everything is correct, make sure that the statements for peering are correct, and make sure show interface shows up/up. Possible Cause: Neighbor statement misconfigured under BGP There may be other things in the neighbor statement that may cause problems in neighbor relationships. For instance, timers may be mismatched.

To check whether something’s incorrect with the neighbor statement in BGP, start by executing the show ipbgp summary. You’ll want to know first whether the neighbor relationships aren’t even shown. If they aren’t shown, then that means the neighbor relationship is not being established and it has not been configured at all.

If it has been configured, you’re going to see at least Active or Idle as a result of that command. At that point, you can also execute the show running-config in order to be able to go through and parse through the configuration. If there are only a few entries, this task is going to be very easy.

However, if it’s really long, then it can be difficult. If so, then paste it to Notepad so you can use the search function to find specifically what you’re looking for. If you know a specific IP that’s correct, you can go to that particular IP where you’ll find the entire string of numbers and commands, which will be listed in order. From that you can gather some information and determine possible causes.

Once you’ve pinpointed what’s wrong, you can delete and recreate the neighbor statements with the correct IP address combinations.

Route Advertisement Issues

Possible Cause: Automatic network summarization is in effect Although there can be a number of things that may prevent routes from being advertised correctly, one of the primary culprits is the auto-summary command.

Both BGP and EIGRP have automatic summarization enabled by default. If you don’t execute the no-auto summary command when you configure BGP, it’s going to automatically summarize into a classical boundary.

To check whether summarization is enabled, use the show ip protocols command. Look for the statement that says, Automatic route summarization is <disabled | enabled>. In EIGRP, it will say, “... is in effect” or “... is not in effect”.

So in BGP, you’ll want to see “disabled”. If it says something different, then you will need to go back into the BGP router configuration and execute the no auto-summary command.Possible Cause: The advertisement does not match a route in the IP routing table If the particular route being injected into BGP by the network statement is not matching a route in the IP routing table, then you can encounter route advertisement problems.

To remedy this, execute the show ip route command to discover whether the route exists in the current routing table. If it is not there, troubleshoot the local router and the IGP to determine the cause. See whether it was even configured in the router or check the IGP to see if there is a particular issue that’s preventing the route from being installed in the routing table.

Once you see the cause of the problem, correct it. Possible Cause: Route synchronization is enabled By default, route synchronization is enabled in BGP. Synchronization means that it has to exist in the IP routing table through an IGP, static routes, or other means, or BGP will not advertise the route.

To solve this problem, first execute the show ip protocols command and check whether the statement says IGP synchronization is enabled. If so, go back into the BGP configuration and put in the no synchronization command in order for that behavior to be turned off. Possible Cause: Route redistribution is not configured or is misconfigured One more cause for a problem with route advertisement issues may have to do with redistribution. Basically, if redistribution has not been configured, BGP won’t pull those routes in. The table has to be populated either through direct injection into BGP using the network statement or through redistribution.

You may use the show ip protocols command and look to see if redistribution has been configured. If it has, then investigate some more to see where the problem lies. It could be that you may have put in an incorrect AS number or a process ID relating to OSPF.

Routes Missing from Table

Now, aside from routes not being advertised correctly in BGP, you may find that certain routes are not showing up in the routing table, which is a little bit of a different issue. They sound the same but route advertisement is actually the BGP process announcing something out, and whether or not something’s being installed in the routing table is a separate issue altogether.Possible Cause: Default route misconfigured If the default route is not showing up, then it’s probably simply because it was not configured correctly. To investigate, execute the show iproute and see whether there is a route to 0.0.0.0 network to begin with. If it’s missing from the table, it won’t be injected or advertised from BGP.

You may also execute the show running-config and verify whether the network 0.0.0.0 and the default-information originate statements are existing and correctly configured in BGP. Add those statements if you find them missing. Possible Cause: Route synchronization is enabled We discussed this earlier as a possible cause for route advertisement issues, so just review that section if you want. Possible Cause: iBGP neighbors not fully meshed You may have a problem with iBGP neighbors because these neighbors are not full meshed. Remember, when the routes are being advertised among iBGP peers, it has a ttl of 1. If they’re not all fully meshed, you won’t be able to propagate routes correctly.

To verify that peerings are happening correctly, use the show ipbgp neighbors command. You may also use the show running-config command and do a little bit more investigative work in order to determine whether or not the neighbors are in fact fully meshed.

If there are connections that are missing, configure them using the <peer ip> remote-as <ASN> command. For example, let’s bring back the diagram we showed you earlier.

If these were IBGP routers and there were direct connections between the Internet Router and Router 1 as well as between Router 1 and Router 6, but there was no connection between the Internet Router and Router 6, that would be a missing leg to a fully-meshed environment.

So if you have that kind of missing connection, you can then use the <peer ip> remote-as <ASN> command to remedy the problem.

Finally, execute the show ipbgp summary command, make sure that all the other peers that you’re looking for are indeed there and that each one of the neighbors shows all the other peers that are required. That will be your best way of determining whether or not a fully meshed relationship has been configured. Possible Cause: iBGP next-hop is not reachable One of the ways for you to check whether this is an issue is to do the show ip route command and examine the IP routing table for the required static/IGP route. And this is true with even eBGP. If the next-hop route is not reachable, it’s not going to be advertised.

If a static route is required, configure it using the ip route <prefix><mask><next-hop>command. Now, if for some reason, the IGP is failing to install the route leading to the iBGP next-hop address, you may have a whole other set of issues just related to the IGP.

In that instance, you have to make sure you’re looking at BGP as one sort of troubleshooting domain and the IGP as another. They depend on each other but they can have different issues.

Address Summarization Problems

Possible Cause: No subnets in the routing table in the range of the aggregate address In terms of address summarization problems, one common cause for an aggregate not being advertised is because there isn’t some part of the IP address range within the aggregate that exists already in the routing table.

The easiest way to check that is to execute the show ip route. See if any networks within that range currently exist. If you were advertising an aggregate address 216.145.0.0 and the mask is 255.255.252.0 and there are no 216.145-any type addresses in terms of the routing table, it’s not going to advertise the aggregate.

Execute the show running-config to verify that the aggregate address statement is correctly configured. If it is not, delete and recreate the statement that need corrections.

Relevant Debug and Show Commands

The troubleshooting process in BGP requires the use of several Show and a couple of Debugcommands that you should be familiar with. BGP Show Commands Show ip protocols This will show the BGP status of your neighbor, your Autonomous System Number (ASN), timer intervals, networks being advertised, and neighbors/gateways. Consequently, it will be helpful in troubleshooting neighbor relationships, missing routes, summarization issues, and filtering problems.

Here’s a portion of an output resulting from a show ip protocols command:

Show ip route bgp This will show BGP routes advertised by neighbors, the administrative distance, MED value (if any), and the route source/interface. These information will be helpful in troubleshooting missing routes, summarization issues, filtering problems, and general troubleshooting tasks.

Show ipbgpsummaryThis will show your configured peer IP addresses, your ASN, the number of messages received and sent, how long the session has been up, the state (Active, Idle, etc.), and prefixes received. This will be helpful in troubleshooting neighbor relationship issues, local configuration issues, and routing problems.

Show ipbgpneighborsThere are two forms of this command. The first one is just show ipbgp neighbors, which will show you the IP address of neighbors, router ID of neighbors, state of a neighbor, peer-group (if configured), BGP messages/types received, and so forth.

However, you can also specify the peer ip address and then add either of these two optional parameters received-routes and advertised-routes. Received-routes is for routes being received by that particular neighbor, while advertised-routes is for routes advertised out to a particular neighbor.

Here’s the syntax: show ipbgp neighbors [peer ip address] {received-routes | advertised-routes} That will show you how many routes you are actually advertising or receiving and can be extremely helpful in attacking problems associated with routes missing and so forth. It can also be helpful in troubleshooting neighbor relationships, local configuration issues, and other issues associated with BGP routes.

Here’s part of what I got when I issued the command: show ipbgp neighbors 10.6.6.6

Now, here’s part of what I got when I used show ipbgp neighbors 10.6.6.6

advertised-routes instead:

Notice the default route that’s being advertised at the top, followed by a whole host of prefixes.

Lastly, here’s part of what I got when I used show ipbgp neighbors 10.6.6.6 received-routes

It’s practically the same type of information but it’s showing what’s being received. Show ipbgp This shows the entire contents of the routing information base. It will show your network mask/prefix, next-hop router, MED value, Local Preference Value, Weight Value, AS path, and so forth.

In turn, that information is going to be helpful in troubleshooting missing routes, filtering problems, and general troubleshooting tasks.

Now we go to the Debug commands.

BGP Debug Commands Debug commands display results that are more real-time views of the situation compared to the results of the show commands, which mostly allow you only to look at settings.

debugipbgp<peer ip> updates This will show you everything that has to do with neighbor adjacencies and relationships. So it’s good for troubleshooting neighbor relationships and routing update issues.

debugipbgp events

This is helpful in looking at different network events like interfaces that go up and down, processes that change, neighbor relationships that change, and so forth. It can help in troubleshooting routing update issues, convergence issues, and interface flapping.

Conclusion

That wraps up our discussion on BGP troubleshooting. I hope you learned a lot and I look forward to having you here again.

More Cisco Certification Info, please visit Router-switch.com

What Router-switch.com Prepared for Its 10th Anniversary?

2012-10-12T02:15:00.003-07:00

Router-switch.com is ten years old, happy 10th Anniversary! It is a vital phase for all router-switch.com staff in 2012. How to celebrate its 10^th anniversary? What Router-switch.com Prepared for Its tenth birthday to thank its regulars and new clients? Let’s have a look!

Router-switch.com, ten years old, happy birthday! 2012 marks the tenth anniversary of router-switch.com, which is an exciting moment for all router-switch’s staff and clients.

What Router-switch.com Prepared for Its 10^th Anniversary?

In 2012, router-switch.com welcomes its 10^th anniversary. For router-switch.com, it has been a worldwide leading Cisco supplier during the past 10 years. To celebrate 10 years, it prepares big gifts for its regulars and new clients, such as Cisco AIR-AP1131AG-A-K9, limited edition T-shirts and 20PC U disk. Some popular Cisco products(including Cisco routers: Cisco 2900&3900 Routers, Cisco switches: Catalyst 3560x Series, Cisco Catalyst 3750x Series, Catalyst 3560V2/3750V2, Cisco firewall, Cisco Access Points and network cards) will have big discounts (up to 75% off).The activity date is from September to October. Wow, if you wanna buy Cisco equipment, don’t miss it.

Router-switch.com has become a world’s leading Ciscosupplier over the past ten years with the help of its staff and customers. To celebrate its 10 years, router-switch.com offers some activities for all the old and new clients, for example, big discount (save up to 75% off) for the popular Cisco items (including Catalyst 3560x Series, Cisco Catalyst 3750x Series, Catalyst 3560V2/3750V2, Cisco 2900&3900 Routers, Network Cards, etc.), fill out a simple survey to win a big gift (Cisco AIR-AP1131AG-A-K9, limited edition T-shirts and 20PC U disk). The activity date is from September. 01. 2012 to October. 31. 2012. Wow, if you are a Cisco buyer, don’t miss this chance. Let’s join the party to celebrate the 10^th birthday together.

Cisco Layer 3 Switches Review: Cisco 3750-X

2012-09-17T02:30:00.000-07:00

The Cisco 3750 range has been around for many years now, and has a vast following. The Cisco 3750-X is the new kid on the Cisco block, and it combines plenty of stuff that will be familiar to users of its predecessors with some funky new features that are clearly a step forward.

Cisco 3750 switch comes in a number of flavors – between 24 and 48 ports, with or without Power over Ethernet. Cisco 3750 with 48Pis the PoE variant of the 48-port device. Now, the traditional Cisco 3750 had four 1Gbit/s SFP ports in addition to the 48 10/100/1000 copper ports; the Cisco 3750-X instead has a slot into which you can slot either a four-port 1Gbit/s SFP daughter-board or a two-port 10Gbit/s alternative.

Alongside the port combinations, there are three software installs. The LAN Base software is a layer-2 only software image, and quite frankly I wouldn't ever expect to buy one of these if I only wanted layer-2 functionality. More sensible is the IP Base image which makes the device a proper Layer-3 routing switch, albeit with a limited selection of routing protocols. At the top is the IP Services image, which makes the unit a full-blown router (just like its ancestors – two of my BGP-shouting WAN routers are actually 3750Gs, in fact). The main market will of course be for the IP Base version.

The rear panel is interesting too, of course. As with the older 3750s the rear panel has a pair of “stack” ports. Each stack port provides a 16Gbit/s backplane connection, and by stacking your devices in a loop you end up with a resilient 32Gbit/s backplane. From a management and configuration point of view a stack is a single virtual switch – you manage it rather like a chassis product with a number of blades. So port 1 of switch 1 is Gi1/0/1, port 3 of switch 2 is Gi2/0/3, and so on.

The important rear-panel innovation with the new CISCO 3750-X model is the provision for redundant power supplies. In the old model you had a single, non-removable power supply along with an RPS (Redundant Power Supply) connection; to use the latter and give yourself some resilience you had to buy something like an RPS2300 – an external device that was a stupid shape that didn't fit into a rack very well, had buttons on the front whose only purpose seemed to be to make things break, and on a brighter note provided up to six switches with resilient power. The new model has dual slots for removable PSUs, of which one is populated by default; it's a ten-second job to slip a second one in beside it. One of the downsides of the old 3750 was the bloody awful reliability of the internal (fixed) PSU, and I've spent rather too many hours swapping out units with duff power units, so the removable units in the -X are most welcome.

Along with the redundant PSU facility is the power stacking capability. Just as you have your data stack cables, you also now have a pair of power-stack cables on each unit, so that the total power available via all the PSUs in the stack is available for negotiated use across the whole stack, for switch power and PoE.

As with the older devices, you can add and remove stack devices on the fly. Adding a switch to a stack is a simple case of settings its ID, telling the stack to expect a new member, and plumbing it in (although in theory the stack will deal with firmware mismatches in the new member, I prefer not to tempt fate so I always pre-install the right version). If a unit fails the stack will keep on humming while you pull out the duff one and stick in the replacement, and the config will be automatically migrated to the new unit.

The only downside I've found so far, in fact, is with trying to get the new -X model to co-exist in a stack with the old 3750-G (in short, I've not persuaded it to actually work yet) but I've no doubt I'll persuade it to play before long.

The Cisco 3750-X is a really sensible evolution in an already popular family of switches in the Cisco family. Being an IOS device there's really not a great deal of difference management-wise between the old and the new, so you get new functionality with almost zero additional training requirements. I've recently added seven 48-port non-PoE versions in three of my server installations, and have just received two new pairs of the PoE variant in a couple of offices, and I'm pretty happy thus far.

Pro

New power stacking capability is an excellent evolution.

32Gbit/s backplane should be sufficient for most modest installations.

10Gbit/s Ethernet support for uplinking or connecting to blade servers.

Sample Pricing for Popular Cisco 3750 Models:

Catalyst 3750X 24 Port Data LAN Base: US$2,236.00(57.00% off list price)

Catalyst 3750X 48 Port Data LAN Base: US$3,827.00(57.00% off list price)

Catalyst 3750X 24 Port Data IP Base: US$2,795.00(57.00% off list price)

Catalyst 3750X 48 Port Data IP Base: US$4,945.00(57.00% off list price)

Catalyst 3750X 24 Port PoE IP Base: US$3,139.00(57.00% off list price)

WS-C3750X-48P-S: Stackable 48 10/100/1000 Ethernet PoE+ ports, with 715W AC Power Supply: US$5,590.00(57.00% off list price)

Supplier

Router-switch.com ((Yejian Technologies Co., Ltd), a World's Leading Cisco Supplier

How to Verify and Troubleshoot NAT Configurations?

2012-07-31T02:13:00.002-07:00

The most common mistake in troubleshooting is not the inability to use commands but the laxity in the examination of entries and configuration. Solving network problems requires careful and proper examination of routing entries and configuration.

There are several useful router commands to verify NAT translations. Cisco routers are equipped with NAT verifying tools.

1. The command: show ipnat translations display the details of NAT assignments; it will enable you to verify that correct translations exist in the translation table. It’s recommended that you clear any dynamic NAT translation entries that might still be on the router.

2. To view additional details about each translation us the following command;

R1#show ipnat translation sverbose

This command will display additions information, which includes creation dates and usage of each translation.

To clear NAT translations use the command: clear ipnat translation

e.g.

R1#clear ipnat translation

3.Verify the operations of NAT by checking details about every packet that is translated by the router. To view this information use the:

R1#debug ipnat or

R1#debug ipnat detailed

The later command debug ipnat detailed Provide a description of each packet that had been considered for translation. It also displays information on some errors such as failure to assign a global IP address.cisco product

4.The show ipnat statistics command display:

Details of all the active translation entries

NAT configuration parameters

Number of IP addresses in the pool

Total number of assigned IP addresses.

Another useful command for NAT verification is the show run command. With this command, you can view the;

Access command lists

Interfaces and other configurations

The most common mistake in troubleshooting is not the inability to use commands but the laxity in the examination of entries and configuration.

Cisco Catalyst 2960, 2960-S and 2960-C switches Support Your Business Needs

2012-07-05T02:47:00.003-07:00

Cisco Catalyst 2960, 2960-C and 2960-S switchesare the leading Layer 2 edge, providing improved ease of use, highly secure business operations, improved sustainability, and a borderless network experience.Cisco Catalyst 2960 series support voice, video, data, and highly secure access. They also deliver scalable management as your business needs change.

Cisco Catalyst 2960, 2960-C and 2960-S Series Switches support:

All-in-one Communications: Data, wireless, and voice support so when you are ready to deploy these you have one network that supports all your business needs.

Intelligence: Prioritize voice traffic or data exchange so delivery of information is aligned with your business requirements.

Enhanced Security: Protect important information, keep unauthorized users off the network, and maintain uninterrupted operation.

Reliability: Take advantage of standards-based methods or FlexStack stacking for increasing dependability and rapid recovery from problems. You can also add redundant power supply for extra reliability.

Easy Configuration: Use Cisco Catalyst Smart Operations and Cisco Network Assistant to simplify set-up, upgrades, and troubleshooting.

Peace of Mind: All Catalyst 2960, 2960-C and 2960-S Series switches are protected for the life of the product by the Cisco Limited Lifetime Hardware Warranty and unlimited software updates.

Cisco Catalyst 2960, 2960-C, and 2960-S Series Switches offer outstanding switching features:

Data, wireless, and voice communications support so you can install a single network for all your network and communication needs
Offers 8-, 24- or 48-port models with optional PoE, offering up to 15W per port, to power network end-points
Advanced security such as, identity services and sophisticated access control to protect your critical assets
Redundancy and resiliency features to protect the availability of your critical applications at all times
Limited lifetime hardware warranty including Software updates at no additional charge

Cisco Catalyst 2960 -C Series does it all in a compact form factor:

Power over Ethernet pass-through, powers devices and extends your network to workspaces with limited power supply available
Compact size for placement in space-constrained areas
Fanless, silent operations, allowing the switch to blend seamlessly into the work environment
USB storage for file backup, distribution, and simplified operations
Enhanced Limited Lifetime Hardware Warranty, including next-business-day replacement and 90-day service and support

Cisco Catalyst 2960 -S Series offers all features of the 2960 plus extra connectivity options:

Gigabit Ethernet and 10 Gigabit Ethernet uplink flexibility offering business continuity and fast transition to 10 Gigabit Ethernet
Cisco FlexStack stacking allowing you to manage multiple switches using a single, common interface
PoE+ with up to 30W per port that allows you to support the latest PoE+ capable devices
USB storage for file backup, distribution, and simplified operations

Enhanced Limited Lifetime Hardware Warranty, including next-business-day replacement and 90-day service and support.

related articles:WS-C2960S-48TS-L

How to Create a LAN Connection Using an Ethernet Cable?

2012-05-15T02:46:00.001-07:00

Having multiple computers at home doesn't mean you need to have multiple Internet connections. If you have a router and a few Ethernet Cisco cable, you can share an Internet connection among all your computers and even transfer files between them without having to use a CD, floppy disk or jump drive.

What you need to create a LAN connection using an Ethernet cable is Router Ethernet cables

How to Create a LAN Connection Using an Ethernet Cable? Follow these steps:
1. Insert the software disc that came with your router into your computer's CD or DVD drive. Follow the on-screen instructions to install the software.

2. Plug the AC power cable from the router to an electrical wall outlet. Connect an Ethernet cable from the port on the router that says either "WAN" or "Internet" to the outgoing port on your broadband modem.

3. Connect an Ethernet cable from the Ethernet port on the back of your computer to one of the open ports on the router.

4. Run Ethernet cables from any other open port on the router to any other computers you want to be added to the network.

5. Click on the "Start" bar at the bottom of your desktop and then choose the "Control Panel" button. Click on the link that says "Network Sharing Center" and then click on the button that says "Set up A Network Connection."

6. Check the radio box that is marked "Connect to the Internet through a gateway" and then click "Next." Type in a name for your network and then hit "Next" again. Press "Finish" to set up the network.

7. Go to the other computers on the network and navigate to the Control Panel again and then choose the Network Sharing Center. Click on "Connect to a Network" and then choose the network you set up on the first computer.

Tips & Warnings
It doesn't matter which open port you use on the router to connect an Ethernet cisco cable price to your computer, as long as you don't connect it to the "WAN" port reserved for the modem.

Keep the Ethernet cable in an area where it can't be tripped over or accidentally pulled out. Running it across the ceiling or on top of a wall using tape or a cable runner will keep the cords out of the way.

Cisco Router Products Feature

2012-04-10T02:25:00.000-07:00

Cisco routers are for teleworkers, small offices, small to medium-sized businesses, and enterprise branch and head offices.
Cisco routers provide high availability, comprehensive security, integrated wireless, ease of management, and advanced Quality of Service (QoS) for today’s most demanding network services, including IP communications, video, customer relationship management, financial transactions, and other real-time applications.
Cisco Integrated Services Routers: Cisco 860, 880, 890, Cisco 1800 (fixed), Cisco 1800 (modular), Cisco 1900, Cisco 2800, 2900, 3800, 3900 Series
Cisco Aggregation Routers: Cisco 7200, 7301, 7304, ASR 1000, Cisco 7600, Catalyst 6500 Series

Cisco Integrated Services Routers: Increase the power of the network and optimize branch services on a single platform, while gaining a superior user experience.
Featured Cisco Routers: Cisco ISR G2
Cisco 3900 Series, for Medium-sized to Large Businesses and Enterprise Branch Offices
•    Delivers scalable rich-media services including TelePresence, highest density of service virtualization, and lowest TCO with energy efficiency
•    Ideal for high-end deployments requiring business continuity, WAN flexibility, superior collaboration capabilities, and investment protection
•    Field-upgradeable motherboard, circuit-speed WAN performance up to 350 Mbps with services such as security, mobility, WAN optimization, unified communications, video, and customized applications
•    3 RU modular form factor

Cisco 2900 Series, for Small- to Medium-sized and Enterprise Branch Offices
•    Provides rich-media services including TelePresence, service virtualization, and lower TCO with energy efficiency
•    Ideal for mid-range deployments requiring business agility, WAN flexibility, and secure collaboration
•    Circuit-speed WAN performance up to 75 Mbps with services such as security, mobility, WAN optimization, unified communications, video, and customized applications
•    1-2 RU modular form factor

Cisco 1900 Series, Small Offices and Small Enterprise Branch Offices
•    Entry-level secure WAN deployments, offers service virtualization, and low TCO
•    Ideal for small offices requiring modular flexibility for highly secure mobility and customizable applications
•    Circuit-speed performance up to 25 Mbps with concurrent services
•    Factory-selectable 802.11n access point and double-wide HWIC support; desktop form factor

Cisco 800 Series, for Small Offices and Teleworker Deployments
•    Provides secure WAN connectivity with desktop form factor
•    Ideal for telecommuters and small offices
•    Wire-speed performance with secure data services for xDSL, cable, and Ethernet WAN environments
•    Factory-selectable 802.11n access point, 3G WAN, and Survivable Remote Site Telephony (SRST) options

Cisco Integrated Services Routers G1:
Cisco 1800 Integrated Services Routers:
•    Designed for small to medium-sized businesses and small enterprise branch offices
•    Available in both fixed and modular configurations
•    Wire-speed performance with secure data services enabled at up to T1,E1, or xDSL rates
•    Business-class security with stateful firewall with URL filtering, VPN 3DES encryption and Advanced Encryption Standard (AES), Dynamic Multipoint VPN, IPS, and secure wireless LAN option
•    Secure WLAN option for simultaneous 802.11a and 802.11b/g operation with use of multiple antennas

Cisco 2800 Series Integrated Services Routers
•    Designed for small to medium-sized businesses and enterprise branch offices
•    Wire-speed performance up to multiple T1/E1/ xDSL rates, increased services density for security, voice, caching, video, network analysis, and L2; and switching
•    Security features include hardware-based VPN acceleration antivirus defense, IPS, and SDM support

Cisco 3800 Series Integrated Services Routers
•    Designed for medium-sized to large businesses and enterprise branch offices
•    Wire-speed performance with services enabled at up to T3/E3 rates; increased services density for security, voice, caching, video, network analysis, and L2
•    Security features include hardware-based VPN acceleration, antivirus defense through Network Admission Control, IPS, and SDM support

Cisco Aggregation Routers:Differentiate your service portfolio and increase revenues by delivering end-to-end scalable solutions and subscriber-aware services.
Cisco 7200 Series Routers
•    Application versatility supports managed network services, WAN and broadband aggregation, MPLS, VPN, QoS, and multiservice environments
•    Business-class security includes stateful inspection firewall, software and hardware VPN encryption, service-level validation features, and intrusion detection
•    Multiservice data/voice features include analog and digital voice, Survivable Remote Site Telephony, and multiservice interchange (MIX)-enabled backplane

Cisco 7600 Series Routers
•    Ideal for enterprise wide-area or metropolitan-area network aggregation or service-provider environments
•    Business-class security supports services modules including IPSec, firewall, SSL VPN, and IPS
•    Supports up to four slots for redundant supervisors and line cards; 6-, 9-, and 13-slot chassis available
•    Support for up to 12 Shared Port Adapter (SPA) bays and SPA Interface Processors (SIP) for intelligent services

Cisco ASR 1000 Series Routers
•    Ideal for service providers and enterprises seeking leading performance with compact form factor
•    Allows current and future services to be switched on instantly, at line rate, without compromising network performance or availability, using the Innovative Cisco QuantumFlow processor
•    Delivers highly secure, high-performance, and integrated software-enabled services (no service blades required), including multi-gigabit encryption, broadband, 20 and 40 Gbps firewall, Network- Based Application Recognition (NBAR), Flexible Packet Matching and session border control
•    Establishes new price and performance class for edge routers that deliver service integration for personalized, residential "any play" and complex business services
•    Provides powerful resiliency with convenient and cost-saving in-service software upgrade (ISSU) capability
•    Offers software redundancy on non-redundant hardware with ASR 1002 and ASR 1004 routers
•    Offers highly scalable, redundant hardware and 40 Gbps services and interface processors in the ASR 1006 and ASR 1013 routers

ASR 9000 Series Aggregation Services Routers
•    Offers nonstop video, enhanced scalability, and reduced carbon footprint
•    Ideal for carriers offering residential, mobile and business services
•    Scales up to 96 Tbps per system with comprehensive system redundancy
•    Offers unique service- and application-level intelligence

Cisco XR 12000/12000 Series Router
•    Extends highly secure virtualization and integral service delivery
•    Ideal for large enterprises and service providers
•    Features Cisco I-Flex (PDF - 677 KB), which prioritizes voice, video, and data services
•    Offers continuous system operation and multiservice scale

How to Use Cisco Static Routes?

2012-04-06T03:00:00.000-07:00

Static cisco routes while manually intensive to keep up, are a very quick and effective way to route data from one subnet to different subnet. Let’s start with the basics.

What is a static router?
- a static route is a hard coded path in the router that specifies how the router will get to a certain subnet by using a certain path.

What do you mean by "hard coded"?
- you or someone has typed in the network ID and the next hop to get to the network specified

How do I add a static route into my Cisco router?
- Pretty simple
router# config t ; get into the configuration mode
router(config)# ip route A.B.C.D (destination network/host) A.B.C.D (mask) A.B.C.D (next hop); this is a simple static route

Are there any other ways to name the next hop except by using an IP address?
- Yes, you can use the port name i.e. ethernet0, E0, S0 and so on

What is "distance metric" that I can add at the end of the command?
- All routes have a value that allows the router to give a priority to which type of routing is used first. In static routes, the value is 1 which means no matter what other protocol you may have running like OSPF or RIP, the static route will always be used first. This can be changed to special needs. for example, if you have a frame link with ISDN back up, you can static routes for the frame and a second set of the same static router but with a distance matric of 255. This means while the frame is up, it goes first but when the frame goes down, the router will try to use the 2nd static which is normally ignored due to the 255 value.

Why do I want to use static routes when there are neat routing protocols like OSPF?
- static routes are easy, no overhead either on the link or the the CPU of the router. They also offer good security when coupled with a tight IP mask like 252 which gives only 2 hosts on a given link

If static routes are so easy, why not use them all the time?
- Static routes while easy can be overwhelming in a large or complicated network. Each time there is a change, someone must manually make changes to reflect the change. If a link goes down, even if there is a second path, the router would ignore it and consider the link down.

One of the most common uses of a static map is the default classless route
- ip classless
- ip route 0.0.0.0 0.0.0.0 [next hop]

This static map says that everything is remote and should be forwarded to the next hop( or supernet) which will take care fo the routing.

Dial on demand is also a big user of static routes. Many times with dial up or ISDN, you do not have the bandwidth or you do not want to pay the connection fees for routing updates so you use static routes.

Static routes allow you to set up load balancing after a fashion. Keep in mind that the IOS load balances across routes first and not interfaces. The easiest way to configure multiple routes on the same interface is to use the secondary IP command

Router 1
!
interface serial 0
ip address 192.0.0.1 255.255.255.0
ip address 192.0.0.2 255.255.255.0 secondary ! second route on same interface

interface serial 1
ip address 192.1.0.1 255.255.255.0
ip address 192.1.0.2 255.255.255.0 secondary

ip route 200.2.0.0 255.255.255.0 196.0.0.4; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.0.0.5; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.1.0.4; goes to serial 1

Router 2
!
interfaceethernet 0
ip address 200.2.0.1 255.255.255.0
!
interface serial 0
ip address 196.0.0.4 255.255.255.0
ip address 196.0.0.5 255.255.255.0 secondary
!
interface serial 1
ip address 196.1.0.4 255.255.255.0
ip address 196.1.0.5 255.255.255.0 secondary

The traffic would go out router 1 across the two IPs on serial 0 first then across 1 IP on serial 1
This gives you unequal load balancing.

Notes: This is just the basics of static routing. You can get very creative if you want and take things further then described here. I would suggest "Routing TCP/IP Vol 1" from Cisco Press for more information.

Why Cisco?Reasons to Choose Cisco for Enterprise, SOHO and Home Network

2012-02-16T01:13:00.000-08:00

Cisco, famous for supplying all kinds of network equipment and flexible networking solution for small to large business, definitely, is the premier network gear provider worldwide. Owning large numbers of fans, Cisco is always proud of providing the platform for campus, branch, data center, and wide-area networks that are highly available while integrating security at all levels of the network, helping to ensure the optimized delivery of application and communications, and providing inherent manageability. How to achieve it? Why Cisco? Let’s figure out what makes Cisco become NO.1 in the networking solution and device.

Several reasons help Cisco to be the computer networking giant
Reliability
Cisco hardware is extremely reliable and used Cisco has an excellent history in helping diagnose and fix any software issues with their equipment. Cisco offer 24*7*365 support which covers technical support and advanced hardware replacement.

Manageability
Managed switches provide remarkably better uptime as a result of enhanced diagnostics, allowing trained engineers to isolate network problems in a fraction of the time required with old-fashioned hunt and pluck troubleshooting. Router management features allow sophisticated configuration, utilization tracking, and diagnostics. Advanced features, like BGP enable non-stop Internet connectivity, and really separate Cisco from the pack.

Scalability
Cisco solutions easily scale from Small Business Start-ups that want reliable managed workgroup switches to Enterprise-class Corporations that demand flawless uptime, need secure wireless networks, managed layer 2 and 3 switches, dependable routing, firewalls, intrusion detection systems, and the software to manage it all.

Variety
Wide range of Cisco network products are offered, including routers, switches, VPN concentrators, wireless, firewalls, IP Phones VOIP, etc. Satisfying cisco fans by providing various Cisco network equipment and solutions.

Interoperability
Cisco provides legendary interoperability, providing real assurance that your investment in Cisco gear is ready for whatever tomorrow brings.

Enterprise Class Features
Depends on the router capabilities and the IOS image you have, you can have an enterprise class features in your LAN. Advance firewall system, Intrusion Detection System, Multicast handling, VoIP, all of that you can have just by upgrading your Cisco routers later when your company got bigger.

Cost
Compared with other manufacturers, Cisco suppliers often provide a very competitive price of Cisco network equipment. New, refurbished and used Cisco routers, switches, firewall security, and so on, all different Cisco items are offered on the market for you to choose. If you want to save money, used and refurbished Cisco network products is not a bad choice.

Nowadays, business requires a network platform that enables technology innovation and business-critical services across the entire network.Cisco has ability to provide an end-to-end network platform tied together by a common infrastructure and a common operating system, and manageable as a single, cohesive entity. Why choose Cisco used? That’s it.

Cisco, based in San Jose, California, is the world’s largest maker of networking equipment.

Simple Steps to Connect a Remote Office to Cisco ASA 5510

2012-02-01T01:20:00.000-08:00

Actually, to connect a remote office to a Cisco ASA 5510 is easy and simple. Once you have connected your Cisco Adaptive Security Appliance (ASA) 5510 router to your computer, you can connect the router with a remote computer. By launching the Cisco Adaptive Security Device Manager (ASDM) application in your computer's Web browser, you can run a wizard to connect the Cisco ASA 5510 device with a remote computer. Before you begin the process, it is important to have administrator privileges and know the IP address of the computer you want to connect remotely to.

Instructions to Connect a Remote Office to Cisco ASA 5510

Step1. Log onto your computer as an administrator, and then open a Web browser. Enter

"https://192.168.1.1/admin" into the address bars, and then presses the "Enter" key on your keyboard.

Step2.Click the "Run Startup Wizard" option, and then click the "Yes" button in each dialog box that appears. Leave the user name and password text boxes empty.

Step3. Click the "OK" button. The main "ASDM" window will appear on your screen. Click the "Wizards" option.

Step4.Click the "VPN Wizards" option followed by the "AnyConnect VPN Wizard" option and the "Next" button.

Step5. Enter the IP address of the remote computer you want to connect to, and then click the "Next" button. Click the "Finish" button. Your asa 5500 is now connected with the remote computer.

Routers, Different Types to Serve Your Network

2012-01-15T23:53:00.000-08:00

There are several types of routers you may hear of:wired router, wireless router.

More detailed classification: Internal cisco router sale (IR): All interfaces belong to the same area; Area Border router (ABR): Interfaces to multiple areas; Backbone router (BR): Interfaces to backbone; Autonomous system boundary router (ASBR): Exchange routing info with other autonomous systems; Designated router (DR): Generates link-state info about the subnet; Backup designated router (BDR): Becomes DR if DR fails.

If you use computers in your home or office, it is likely that your computer is connected with other computers through some type of router.Like a police officer directing traffic at an interchange, a router will direct or route information, data and files to the locations they need to go.Generally, Routers that we used can either be wired or wireless.

A wired router will generally connect to your computer and computers or hardware through an Ethernet cable. This happens with the use of output ports.And the only input port provided on a router will be used for the Internet.

A wireless router may allow access from several computers through wired Ethernet cables and through wireless connections. You will know the router you are using is wireless if it comes with an antenna. The antenna will provide the router with a specific range that allows other computers in the area with wireless capabilities to access the cheapest cisco adsl router, provided they have password access.

Two Typical Routers We Usually Used

Commercial Router

If you have ever been to a coffee shop or hotel that offers Wi-Fi access, chances are they are using a commercial-grade router. These routers are much more powerful than what you would purchase at your local electronics or computer store. The best commercial routers will be able to provide access to the Internet, files and printing, for example, with little problem. Commercial routers may also be used by businesses, hospitals or in a university setting as part of a wide area network or WAN.(Cisco is a leading router manufacturer to aim to provide router and networking solution to small, medium and large enterprises) This is a network that allows computers to connect to each other even if they are in another building across town. The commercial-grade will be used reset cisco router to connect with the wide area network (WAN) on one side and a smaller network called a local area network (LAN) on the other.The local area network may consist of one large office within a building.In that case, you could have multiple LANs connecting to the WAN through one or multiple routers.

Consumer Routers

If you are looking for a router for your home or small business, you likely can find what you need at your local electronics store.Generally you will want a router that serves as a wireless access point (WAP).It should also be a network switch.The wireless access point (WAP) basically provides the wireless access that everyone wants. That wireless access can be both to the Internet and to other computers in the home or office.Routers that come with a network switch tend to be faster and provide more evenly distributed bandwidth to each port. Consumer routers will come in a variety of price ranges and strengths.Some of the lower priced consumer routers will not have a very strong firewall. (Cisco refurbished routers Linksys E-series routers, powerful home routers, are welcomed by a lot of Cisco fans, more info of Cisco’ home product store you can visit Cisco’s official site: cisco.com).

Cisco Wireless Points for Home, Office and larger Enterprise

2011-12-27T23:52:00.000-08:00

“How do I enable the wireless in a cisco solution Aironet access point?”“What is the best way to setup a wireless network with several access points to give uninterrupted connectivity?”“Resetting a Cisco wireless AP 350?I found an old Cisco wireless access point (Aironet 350 AP352E2C) and was wondering how I can reset it?”---From Yahoo Answers

Are you also looking to set up an easily accessible wireless network at home or the office? Indeed, wireless access is a great choice for easy, convenient internet and network access from anywhere you need it. And different products can allow youto extend the wireless range to just your apartment, your office building, or your entire campus. Cisco has a variety of products designed to fit every wireless requirement that you could need.

Further info on wireless access points for home, small business and large enterprises as follows

Cisco Wireless Access Points for Home---Valet
The Valet series is made with the home in mind. Valet products are inexpensive, sleekly designed, and they’re very easy to set up. They also function as your home’s router, allowing you to connect all computers (wireless or corded) to the internet. With the Valet, you can connect your house’s bluetooth or wireless-enabled game systems or other devices with no effort at all. The included Cisco software makes the Valet easy to install and customize on any PC.

Cisco Wireless for the Office---Small Business Access Points
Cisco small business wireless access points, designed with a business owner in mind, allow you to connect farther, faster, and safer than ever before, and the more important is providing a big payoff for small business’ dollar.

The extended range of the small business WAP4410N wireless access point allows employees and guests to connect to the internet anywhere within a large range of connectivity. You can connect a variety of wireless devices in seconds to the network, and you do not even need an available outlet to connect the access point to power. These wireless access points support power-over-ethernet devices,IOS download so you can install them quickly and easily anywhere you like.

The small business series has advanced security features to protect your network from unauthorized gateways into your network. They also offer support for the fastest speeds possible with their expanded range, ensuring that your wireless users have all the performance they need right at their fingertips.

Wireless Access Points for Larger Enterprises---Aironet

The Aironet series is designed to fit in perfectly with an enterprise environment and provides sleek, rugged, and powerful performance for an extended range of use and easy scalability. The Aironets also support power-over-ethernet, this greatly lessens the difficulty of installation. Its high-capacity performance can handle large amounts of users while still offering security that large operations need to protect their network. They are also built with clean-air technology and an energy-efficient construction that will help your business reduce its carbon footprint.

For supporting a large user base, covering an extended range, and standing up to rugged environments, large businesses or institutional facilities should consider the Aironet series of wireless access points to give them the performance they need.

That’s it for this guide to Cisco wireless access points. Whether you are at home or small, medium or larger office, going wireless can greatly increase your productivity and ease of access for all your wireless devices.

source:routerswitch.com

Cisco to Introduce Larger Cius Tablet Next Year

2011-12-01T18:06:00.000-08:00

Cisco Systems in the first half of next year will release a tablet with a larger screen than the current Cius, the first move in the company's long-term plans to introduce tablets in multiple sizes, an executive said this week.
The new tablet will be released around the spring season in the U.S., and the screen size will be larger than the 7-inch screen on the current Cius tablet, said Chuck Fontana, director of Cius product management at Cisco.
"We're still working through the details of the exact form factor, but that work is under way," Fontana said, adding that the tablet size is being evaluated based on customer demand.
The company is looking at multiple screen sizes, but a lot of research is around tablets with 10-inch to 11-inch screens, Fontana said. buy Cisco is also looking at smaller Android devices with 3.5-inch to 5-inch screens from where users can access videoconferencing, collaboration and virtual desktop tools.
"The same Cius experience you'll be seeing on other form factors," Fontana said.
After delays and a long trial run, Cisco's Cius tablet start shipping in July and is targeted at businesses. The tablet has Google's Android 2.2 OS, which is code-named Froyo, and Intel's mobile processor, which is code-named Moorestown.
Cius is currently priced at US$725, higher than the iPad 2, which is priced starting at $499. The tablet is not available in retail stores and competes with business tablets such as recently introduced Hewlett-Packard's Slate 2, which has an 8.9-inch screen, and Dell's Latitude ST, which has a 10-inch screen.
Fontana described Cius as an "endpoint" device that can be used as a virtual desktop or as a mobile device for communication or collaboration. The device works with Cisco's TelePresence videoconferencing system, WebEx tools and other applications including Quad, a collaboration tool also available for the iPad and iPhone. Virtualization software from VMware and Citrix allows the tablet to run a virtualized Windows desktop. The tablet also provides access to Android Market and Cisco's AppHQ, which carries business applications tested and certified by the company.
Cisco is also working with Intel to upgrade the current Cius to Google's Android 4.0, also called Ice Cream Sandwich, and the new OS can be expected by fall, Fontana said. He declined comment on whether the new larger screen tablet would come with Android 4.0.
There are no current plans to put Microsoft's upcoming Windows 8 in the Cius tablet, but the company is keeping all hardware and software options open, Fontana said. The company is proceeding with Android, as wholesale Cisco applications can expand to other Android devices, iPads and iPhones.
Use of the Cius is growing in the enterprise as applications move to the cloud and businesses increasingly find ways to use tablets, Fontana said. There is a demand for larger screens, so one of Cisco's immediate focus is to upgrade its tablet lineup. The current Cius is being used in hospitals for doctors to interact and access documents, and by Cox Communications field workers for customer support.
Larger screens are useful in businesses, especially in dealing with rich media and for those who want wider screens but don't have a dock or a monitor, Fontana said. It will be possible to dock larger-screen Cius devices on desktop phones, and will provide a PC-like experience via secure access to virtual desktops hosted on servers.
"Some people don't want a device that's more mobile, they want something that's an endpoint that's both a videophone and a virtual desktop," Fontana said.
Smaller devices with 3.5-inch to 5-inch screens are also under consideration, Fontana said. These devices could resemble smartphones in size, but will be smaller cousins of the larger tablets, with access to enterprise collaboration, communication and virtual desktop tools.
"It's another [unified communications] endpoint. Everything you can do on the 7-inch Cius today you can do on a 5-inch as well. The use cases are, some people just want something they can put in their pocket," Fontana said.
For instance, smaller-screen Cius devices could resemble smartphones and be alternatives to older devices like Cisco's old IP phones which are currently popular portable devices for voice and video.
The company this week introduced a model of its current Cius 7-inch device for AT&T's 4G network. The company will also introduce a Cius for Verizon's LTE network soon, Fontana said.

Key Features of Cisco 1900 Series: Cisco 1941 & Cisco 1921

2011-11-30T19:41:00.000-08:00

For a businessthatdepends on technology, cost of router 1941 Series Integrated Services Routers(ISRs) deliver high-performance, highly secure connectivity with multiservice integration that can transform the workplace with a broad set of services, rich-media support, and operational excellence.

There are several Cisco 1900 popular stars including Cisco 1921/K9, Cisco 1921-SEC/K9, Cisco 1941/K9, Cisco 1941-SEC-SRE/K9, Cisco 1941-SEC/K9, CISCO1941W-A/K9, etc. Maybe it is hard for you to decide which one is the most suitable?

Cisco 1941 router or Cisco 1921 router? Not that complicated, look at some discussion from Cisco 1900 users or buyers, you will be clear about it:

The Cisco 1921 Integrated Services Router (ISR) brings you extremely protected data, portability, and application services as whatever you’re expecting. The primary features includes 2 integrated 10/100/1000 Ethernet ports, cisco 1941 sec k9 2 enhanced High-Speed WAN Interface Card (EHWIC) slots, it has a ability to support 802.3af this power modules as well. if you concern the security it has a built in hardware encryption, together with this you can have extremely protected mutual communications.

Though you have mentioned two product with their series but let me tell you that there are multiple product with the same series, such as CISCO1941/K9 and C1941-SEC-SRE/K9 so still with the 1941 series you can have too many models, according to me you should first of make your own configuration and after that look for the model, after that you’ll be able to figure out which one would be better for yourself.

According to me you should prefer price of cisco cisco1941 k9 CISCO1941W-E/K9, it has a ability to support over 10 routing protocol such as OSPF, BGP, EIGRP, PIM-SM, IGMPv3, static IPv4 routing, static IPv6 routing and many more. The router is a evolutionary platform with multicore CPUs, if you have glance at the specification of this model, it will come to know that the hardware it has through which you can have very good performance, some of the features includes firewall protection, VPN support, Syslog support, IPv6 support, CBWFQ, WRED.

More Tips

Key features of Cisco 1900 series

Cisco 1900 Series Integrated Services Routers support:

Nonstop connectivity: High availability and increased business uptime through Cisco IOS Software, hardware redundancy, and failover capabilities.
Flexible services: Modular support for the broadest set of Cisco network and security services, as well as customizable "on demand" virtual services.
Best-in-Class security: Defends against malicious attacks and threats.
Secure mobility: High-speed wireless access enables employees to be more productive when they are away from their desks.
Flexible VPN support: Give remote staff and teleworkers secure access to company assets over a highly secure connection.

1941 cisco Series Integrated Services Routers offer a range of features including:

High-performance, nonstop connectivity with integrated services enables deployment in high-speed WAN environments
Modular design delivers optimal service flexibility
Available EtherSwitch modules enable integrated switching capabilities
Innovative Services-Ready Engine (SRE) enables deployment of services on demand
Optional integrated high-speed 802.11n wireless access point supports secure mobility
Best-in-class security—including firewall, intrusion prevention system, and content filtering—defends against malicious attacks and threats
VPN support enables secure collaborative communications with Group Encrypted Transport VPN (GETVPN), Dynamic Multipoint VPN (DMVPN), or Enhanced Easy VPN
Enhanced redundancy, including diagnostics and backup power supplies increase fault tolerance and business uptime
Operational simplicity, energy efficient design, and Green credentials deliver low total cost of ownership

If you need to get some info about Cisco 1900 series’ price and Cisco 1900 selling, you can visit Cisco 1900/Cisco 1941/Cisco 1921 at router-switch.com

Cisco 1900 series: Quite Simply the Best

Get on-demand services, rich-media capabilities, and unparalleled reliability.

Cisco Catalyst 2960: Features &Specifications

2011-11-16T01:32:00.000-08:00

Cisco has evolved into a worldwide leader of Internet networking, offering software, service and hardware.WS-C2960S-48FPS-L switches provides users the ability to set up enhanced local area networks for small-to-mid size organizations.

Bandwidth

WS-C2960S-48LPS-L and 2960-24TC switches have a forwarding bandwidth of 8.8 Gbps. The 2960-48TT and 2960-48TC have a forwarding bandwidth of 17.6 Gbps and the 2960G-24TC has a bandwidth of 32 Gbps. When using 64-byte packets, the 2960-24TT and 2960-48TT have a forwarding bandwidth of 6.5 Mpps. The 2960-24TC and 2960-48TC have a bandwidth of 10.1 Mpps, while the 2960G-24TC has a bandwidth of 35.7 Gbps with 64-byte packets.

Hardware

The Cisco Catalyst 2960 series of switches has a 32 Gbps switching fabric. These units utilize 32 MB of flash memory and 64 MB of DRAM. This hardware is capable of configuring up to 255 IGMP groups and 8,000 MAC addresses. Maximum Ethernet frame size is 9,018 bytes when bridging with Gigabit Ethernet ports. The 2960 series has a maximum transmission unit of 9,000 bytes and up to 1,998 bytes for multiprotocol label switching with both 10/100/1000 and 10/100 ports.

Features

The WS-C2960S-24PS-L switch features Cisco Express Setup, which allows setup and configuration of switches through a web browser, making it easier for those who are not familiar with terminal emulation programs. The CiscoWorks Support feature enables users to manage individual ports and switches while automating switch discovery. Cisco Network Assistant software is included with these switches, streamlining network administration for up to 250 users. Cisco IOS software is integrated into the system to help users optimize their bandwidth.

Construction and Operational Limits

Cisco Catalyst 2960 series switches are 17.5 inches wide, 9.3 inches deep and 1.73 inches tall, with the exception of the WS-C2960S-48LPD-L, which has a depth of 12.9 inches. All of these switches weigh 8 lbs., except the 2960G-24TC, which weighs 10 lbs. The operating altitude for these switches is 10,000 feet and the storage altitude is 15,000 feet. The operating relative humidity is between 10 percent and 85 percent and the operating temperature is between zero and 45 degrees Celsius. These units have a minimum storage temperature between -25 degrees Celsius and 70 degrees Celsius.

How to Configure QOS on a Cisco 1841 Router

2011-10-19T01:47:00.000-07:00

The Cisco 1841 router runs the Cisco IOS operating system and can be connected to by an authorized administrator using SSH on your network. Optimized for video data, the Cisco 1841 supports a full range of Quality of Service, or QOS, features that allow it to prioritize video traffic and ensure there is a reliable data stream for this form of Internet communication. In addition to its default prioritization of video data, you can prioritize specific ports on the cisco 1841 cost.

Steps to Configure QOS on a Cisco 1841 Router

1. Connect to your routeur cisco 1841 prix using SSH. Obtain the IP address from its parent router or your network administrator and open your preferred SSH client. Connect to it on the provided IP address with a port of 22.

2. Enter your administrative username and password when prompted, then press "Enter."

3. Type "qos enable <port1,port2,port3>" without quotation marks to add these ports to the priority list. precios router cisco 1841 Use a comma only if you have multiple ports and replace "port1," "port2" and "port3" with the numeric number of your application's port. Consult the program's manual for port information.

Reference:

Cisco 1800 Series Integrated Services Routers

Regulatory Compliance and Safety Information for Cisco 1840 Routers

CISCO 881/K9, Cisco 881 Ethernet Security Router

2011-09-30T01:36:00.000-07:00

Cisco 881-K9, hot Ethernet security router, provides collaborative business solutions for secure voice and data communication to small businesses and enterprise teleworkers.The Cisco 881-K9 router delivers features, including firewall, content filtering, VPNs, and WLANs, at broadband speeds to small offices. Easy deployment and centralized management features enable the CISCO886-K9 to be deployed by enterprises or service providers in small branch offices or small businesses.

To get the general features of Cisco 881/K9

Device TypeRouter - 4-port switch (integrated)

Enclosure TypeDesktop

Connectivity TechnologyWired

Data Link ProtocolEthernet, Fast Ethernet

CapacityIPSec VPN tunnels: 20

Network / Transport ProtocolL2TP, IPSec, DHCP, DNS, L2TPv3, DDNS

Routing ProtocolRIP-1, RIP-2, CISCO887G-K9 HSRP, VRRP, GRE, policy-based routing (PBR)

Remote Management ProtocolTelnet, SNMP 3, HTTP, HTTPS, FTP, SSH, CLI

Encryption AlgorithmLEAP, DES, Triple DES, MD5, SSL, TLS, PEAP, TTLS, TKIP, WPA, WPA2, WPA-PSK, PKI, 128-bit AES, 192-bit AES, 256-bit AES

Authentication MethodRADIUS, TACACS+

FeaturesFirewall protection, DHCP support, NAT support, VLAN support, auto-uplink (auto MDI/MDI-X), Stateful Packet Inspection (SPI), MAC address filtering, High Availability, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ), Virtual Route Redundancy Protocol (VRRP) support, Access Control List (ACL) support, Quality of Service (QoS), CISCO887GW-GN-A-K9 DHCP server, DNS proxy

Compliant StandardsIEEE 802.1D, IEEE 802.1Q, IEEE 802.1x

RAM256 MB (installed) / 768 MB (max) - DDR2 SDRAM - SO DIMM 200-pin

Flash Memory 128 MB

Status IndicatorsPort status, power

InterfacesLAN: 4 x 10Base-T/100Base-TX - RJ-45 ¦ Management: 1 x console - RJ-45 ¦ WAN: 1 x 10Base-T/100Base-TX - RJ-45 ¦ USB : 1 x 4 PIN USB Type A

Expansion Slots Total (Free) 1(1 ) x ExpressCard ¦ 1 ( 1 ) x memory - SO DIMM 200-pin

Power Device Power adapter - external - 60 Watt

Voltage Required AC 120/230 V (50/60 Hz )

Compliant StandardsIEC 61000-3-2, VCCI-II, EN55024, EN55022 Class B, ICES-003 Class B, AS/NZS 60950-1, CISCO887GW-GN-E-K9 CS-03, EN 60555-2, UL 60950-1, IEC 60950-1, FCC CFR47 Part 15 B, CSA C22.2 No. 60950-1

OS Provided Cisco IOS Advanced Security

More info about Cisco 881-K9 such as price, purchasing guide, you can visit www.router-switch.com.

DoS Protection on Cisco Routers

2011-09-22T03:09:00.000-07:00

The Cisco router is one of the most versatile High End routing machines. It is one of enterprise’s networking devices. If you take a look at Cisco website under the Routers Product Category, you will notice that the Cisco 7600 can be used in Data Centers, in Service Provider networks, in WAN aggregation or as Internet Edge router. In Service Providers can be used as Provider Edge (PE) in IP MPLS networks aggregating many Customer Edge (CE) router devices. Its modularity and high port capacity allows the 7600 to work as both Layer2 aggregation and as Layer3 high performance router.

In Service Provider networks one of the main concerns of network administrators is to protect the networking infrastructure from Denial of Service attacks. These DoS attacks are actually the most serious and popular security threat against Service Providers. buy used router Botnets are frequently the main source of such attacks. ICMP flooding, UDP flooding, spoofed addresses DoS, SYN attacks etc are a few examples of DoS or DDos (Distributed Denial of Service) attacks. Fortunately the Cisco 7600 router has many robust features and mechanisms to protect itself from such attacks.

In the company that I work (Service Provider) we have already implemented several security protection features on 7600 which are really effective against DoS attacks. A summary of the DoS protection mechanisms on 7600 follows below:

Security Access Control Lists (ACL): Applied on interfaces to block traffic at Layer3/4 layers.
QoS Rate Limiting: Using class-maps and policy-maps you can apply rate limiting to specific type of traffic (e.g ICMP)
uRPF (unicast Reverse Path Forwarding): protects against spoofing attacks. sell cisco routers
Traffic Storm Control: Protects against broadcast storm attacks.
TCP Intercept: Protects against SYN attacks.
Hardware-Based Rate Limiters: Work on PFC3 engines. These rate limiters protect the MSFC routing engine from various packets that can overload its CPU (configured with the mls rate-limit command)
Control Plane Policing (CoPP): Again used for protection of the MSFC routing engine by applying rate limiting to packets that flow from the data plane to the control plane.

Of course in addition to the above you must not forget other important security mechanisms such as strong password policy, proper Authentication and Accounting, refurbished cisco router logging, SNMP security, Routing Protocols security (MD5 authentication in OSPF, BGP etc) etc. All of these technical issues must be based on a thorough and carefully written security policy.

Tips: If you need to know more about Cisco 7600 series, such as key features, specs, related software and price, or wannato buy cisco refurbished routers, you can visit router-switch.com to see more news and info of Cisco network equipment. Also,Cisco blog at router-switch.com share all kinds of news and info related to Cisco, computer and technology, hardware, networking, CISCO network equipment, cloud computing, etc. with all the Cisco fans and networking lovers…

CISCO 2851, Best for Small and Medium Business

2011-08-29T02:36:00.000-07:00

Cisco 2851, a part of Cisco 2800 Integrated Services Router Series, supports wire-speed performance for concurrent services such as security and voice, and advanced services to multiple T1/E1/xDSL WAN rates; enhanced investment protection through increased performance and modularity; increased density through High-Speed WAN Interface Card Slots (four); CISCO2851-AC-IP enhanced Network Module Slot; optional Layer 2 switching support with Power over Ethernet (PoE) (as an option) , supports the 36-port Cisco EtherSwitch module (NMD-36ESW), etc.

cisco 2851

Key features of Cisco 2851

Device Type	Cisco 2821 Router
Form Factor	External – modular – 2U
Dimensions (WxDxH)	43.8 cm x 41.7 cm x 8.9 cm
Weight	11.4 kg
RAM	256 MB (installed) / 1 GB (max) – SDRAM CISCO2851-WAE/K9
Flash Memory	64 MB (installed) / 256 MB (max)
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network / Transport Protocol	IPSec
Remote Management Protocol	SNMP 3
Features	Modular design, firewall protection, hardware encryption, VPN support, MPLS support, URL filtering, 256-bit encryption
Compliant Standards	IEEE 802.3af
Power	AC 120/230 V ( 50/60 Hz )

Price and Availability
Conditions:New Sealed CISCO2851-SRST/K9
List Price: US$6,495.00
Wholesale Price: US$2,728.00
You Save: US$3,767.00 (58.00% OFF)
Supplier:YejianTechnology(RouterSwitch.com)
Email: cisco@router-switch.com (Sales Inquiries)
webmaster@router-switch.com (Technical Inquiries)
Tel: +852-3755-6766 (Hong Kong)
Fax: +852-3050-1066 (Hong Kong)
MSN: cisco@router-switch.com
Related:Cisco 2800 Series Integrated Services Routers are designed to meet both performance and density requirements for the delivery of secure, CISCO2851-CCME/K9 concurrent services for midsize businesses, small and medium-sized enterprise branch offices, and service provider managed services applications without compromising router performance. Cisco 2800 Series routers enable IP Communications solutions that are among the industry’s most comprehensive. From basic telephony to rich call processing, messaging, and automated attendant services, CISCO2851-DC Cisco integrated services routers give customers the freedom to customize solutions to meet their individual requirements. This solution is ideal for customers who want to decrease organizational costs and complexity by converging their company’s voice and data networks.

Cisco ASA 5505, High-Performance Hardware Firewall

2011-08-24T01:48:00.000-07:00

Cisco ASA5505-SEC-BUN-K9, one of hot Cisco ASA 5500 series, is a type of securityappliances, and aim to combine best-of-breed security and VPN services with the innovative Cisco Adaptive Identification and Mitigation (AIM) architecture.

Designed as a core component of the Cisco Self-Defending Network, asa5510-sec-bun-k9 provides proactive threat defense that stops attacks before they spread through the network, controls network activity and application traffic, and delivers flexible VPN connectivity. The result is a powerful multifunction network security appliance family that provides the security breadth and depth for protecting home office, branch office, cisco asa 5510 small and medium-sized business, and enterprise networks while reducing the overall deployment and operations costs and complexities associated with providing this new level of security.

After getting the general knowledge of Cisco ASA5505-SEC-BUN-K9 (all cisco asa 5500 series included), let’s check its specs and features

Processor / Memory / Storage

RAM Installed ( Max ) 512 MB

Flash Memory Installed (Max) 128 MB Flash

Networking

Form Factor External

Ports Qty 8

Connectivity Technology Wired

Data Link Protocol Ethernet, Fast Ethernet

Network / Transport ProtocolIPSec

Performance Firewall throughput : 150 Mbps ¦ VPN throughput : 100 Mbps

CapacityIPSec VPN peers : 25 ¦ SSL VPN peers : 2 ¦ Concurrent sessions : 25000 ¦ Virtual interfaces (VLANs) : 20

Features Firewall protection, DMZ port, power over Ethernet (PoE), VPN support, trunking, VLAN support, wall mountable

Encryption Algorithm DES, Triple DES, AES, SSL

Expansion / Connectivity

Expansion Slots Total (Free) 1 ( 1 ) x Expansion Slot asa 5505

Interfaces 6 x network - Ethernet 10Base-T/100Base-TX - RJ-45 ¦ 2 x network / power - Ethernet 10Base-T/100Base-TX - RJ-45 ¦ 3 x Hi-Speed USB - 4 PIN USB Type A ¦ 1 x management - console - RJ-45

Miscellaneous

Rack Mounting Kit Optional

Compliant Standards FCC Class B certified, CE, VCCI Class B ITE, CISPR 22 Class B, EN 60950, EN 61000-3-2, IEC 60950, EN 61000-3-3, UL 60950, CSA 22.2 No. 60950, EN55022 Class B, AS/NZ 3548 Class B, FCC Part 15 cisco 5505

Power

Power Over Ethernet (PoE) Supported Yes

Power Device Power adapter - external

Voltage Required AC 120/230 V ( 50/60 Hz ) asa5505-ul-bun-k9

Related: More info about Cisco ASA 5500 series, you can visit RouterSwitch.com, a leading Cisco supplier, to check in detail…

What 6 Hardware Components Are Used in a Network

2011-08-15T02:29:00.000-07:00

A computer network is formed by a few basic hardware elements. These devices link computers together in a format that enables them to exchange data with each other, sell refurbished cisco or with services like printers and fax machines.

Network Adapter

The most essential piece of hardware to link a computer to a network is a network adapter. This originally was manufactured on a separate board and slotted into an expansion slot on the motherboard of the computer. For this reason, the network adapter is often still called a network interface card, sell used cisco equipment even though it is usually integrated into the motherboard of modern computers. The network adapter translates data formats between the requirements of computers and the requirements of the network medium (either cable or radio waves).

Cable

Most networks in the world are connected by cable, despite the new popularity of wireless networks. The most common standard for network cable is called Ethernet. This was invented by Xerox, but the management of the standards is now the responsibility of the Institute of Electrical and Electronics Engineers (IEEE). sell cisco equipment Ethernet guidelines are published under the code 802.3. The most common configuration of network cable in the world today is called Unshielded Twisted Pair.

Hub

The hub is the simplest piece of equipment that can form a network. Every device in the network connects to a port on the hub via a dedicated cable (one cable per device). The hub has a series of sockets -- these are the ports. sell cisco used Any signal arriving on one port is automatically copied onto all other ports. The hub pays no attention to the destination address of any arriving data. It is also called a repeater because it repeats arriving data onto all other outlets.

Switch

A switch looks the same as a hub and it receives connections to networked devices in the same way. However, the switch examines arriving data packets and finds a destination address in the packet header. It associates an address with each of its ports. The arriving data is copied onto only that port bearing that address. Each port's address is, cisco sell in fact, the MAC address of the network adapter operating in the computer or device at the other end of the cable plugged into that port.

Bridge

Bridges are switches with only two ports. There is often confusion between switches and bridges. However, if it has more than two ports, it is a switch. Switches are also called multi-port bridges. The purpose of a bridge is to connect two segments of a network together. selling cisco equipment Network segmentation is a solution to a problem of network congestion where the network contains many computers. Bridges can also connect together dissimilar network media, such as cable and wireless segments.

Router

Hubs, switches and bridges operate within a network. Routers carry data beyond one network and across other to reach a destination that is not immediately connected. sell used equipment Routers operate with IP addresses and work together to form a chain passing data all over the world. A router must be connected to at least two networks in order to pass data beyond the boundaries of one network.

Wholesale Cisco Network Hardware

2011-08-11T01:52:00.001-07:00

For Cisco resellers, wholesaling Cisco network hardware from some Cisco suppliers like Routerswitch.com is a better choice than purchasing single one from retailers.

One of the main reasons for buying wholesale Cisco equipment is that you get to save money. Held at the cost of buying in bulk is less because you can get a bigger discount for network hardware you bought or get the VIP service for wholesale customers.

If you are looking for an effective way to save money without compromising the quality of Cisco network hardware that you buy, wholesale Cisco hardware is a great choice. You know, most buy Cisco suppliers provide wholesale service for clients who want to buy certain CISCO items, offering biggest discount, free shipping, earlier delivery, etc.

Nowadays, due to fast development of internet, and to make shopping more convenient and easier, online store is a smart choice to select used Cisco network hardware you need. Because they list detailed purchasing guide, preferential price and full info of every cisco item, which can help you buy cheaper used Cisco equipment.

All in all, wholesaling used Cisco hardware (such as Cisco routers, especially for business and enterprises, Cisco switches: Catalyst 2960, 3560, 3750, 4500 and 6500, Cisco firewall: Cisco ASA 5500 series) benefit you more, biggest discount, competitive price, VIP service, free shipping, special gift, earlier delivery, etc. all these are only for wholesalers. So if necessary, wholesale Cisco network equipment is the best choice for reseller.

Why Cisco?Reasons to Choose Cisco for Enterprise, SOHO and Home Network

2011-08-03T02:39:00.001-07:00

Cisco, famous for supplying all kinds of network equipment and flexible networking solution for small to large business, definitely, is the premier network gear provider worldwide. Owning large numbers of fans, buy sell cisco is always proud of providing the platform for campus, branch, data center, and wide-area networks that are highly available while integrating security at all levels of the network, helping to ensure the optimized delivery of application and communications, and providing inherent manageability. How to achieve it? Why Cisco? Let’s figure out what makes Cisco become NO.1 in the networking solution and device.

Several reasons help Cisco to be the computer networking giant

Reliability

sell refurbished cisco is extremely reliable and Cisco has an excellent history in helping diagnose and fix any software issues with their equipment. Cisco offer 24*7*365 support which covers technical support and advanced hardware replacement.

Manageability

Managed switches provide remarkably better uptime as a result of enhanced diagnostics, allowing trained engineers to isolate network problems in a fraction of the time required with old-fashioned hunt and pluck troubleshooting. sell used cisco equipment Router management features allow sophisticated configuration, utilization tracking, and diagnostics. Advanced features, like BGP enable non-stop Internet connectivity, and really separate Cisco from the pack.

Scalability

Cisco solutions easily scale from Small Business Start-ups that want reliable managed workgroup switches to Enterprise-class Corporations that demand flawless uptime, need secure wireless networks, selling cisco equipment managed layer 2 and 3 switches, dependable routing, firewalls, intrusion detection systems, and the software to manage it all.

Variety

Wide range of Cisco network products are offered, including routers, switches, VPN concentrators, wireless, firewalls, sell used equipment IP Phones VOIP, etc. Satisfying Cisco fans by providing various Cisco network equipment and solutions.

Interoperability

Cisco provides legendary interoperability, providing real assurance that your investment in cisco sell gear is ready for whatever tomorrow brings.

Enterprise Class Features

Depends on the router capabilities and the IOS image you have, you can have an enterprise class features in your LAN. sell used cisco Advance firewall system, Intrusion Detection System, Multicast handling, VoIP, all of that you can have just by upgrading your Cisco routers later when your company got bigger.

Cost

Compared with other manufacturers, Cisco suppliers often provide a very competitive price of Cisco network equipment. New, refurbished and used Cisco routers, switches, firewall security, and so on, all different sell cisco equipment items are offered on the market for you to choose. If you want to save money, used and refurbished Cisco network products is not a bad choice.

Cisco 7600 Series Router, Cisco 7606, Cisco 7609 Provided at a Great Price

2011-07-25T02:16:00.001-07:00

Ideal for Enterprise WAN aggregation or service provider environments, cisco 7600 series is the industry's first carrier-class edge router to offer integrated, high-density Ethernet switching, carrier-class IP/MPLS routing, and 10-Gbps interfaces, benefiting enterprises and helping enable service providers to deliver both consumer and business services over a single converged Carrier Ethernet network.

The 7600 cisco Internet Router delivers optical wide- and metropolitan-area network (WAN and MAN) services with high-touch IP services at the network edge. Now, service providers (SPs) and enterprises can "service enable" their networks at optical speeds, providing competitive advantage and service differentiation to the SP and high-speed connectivity and link usage efficiency to the enterprise.

cisco 7600 series Router’s Key Features

High performance, with up to 720 Gbps in a single chassis, or 40 Gbps capacity per slot

A choice of form factors purpose-built for high availability

Cisco I-Flex design: A portfolio of shared port adapters (SPAs) and SPA interface processors (SIPs) that controls voice, video, and data experiences

Scalable and extensible suite of hardware and software capabilities to enable intelligent Carrier Ethernet services

Integrated Video Call Admission Control with innovative visual quality of experience for both broadcast and video on demand (VoD)

Intelligent Services Gateway, providing scalable subscriber and application awareness with multidimensional identity capabilities and policy controls

Integrated Session Border Control with quality of experience in both Session Initiated Protocol (SIP) and non-SIP applications

What Cisco 7600 series Supports

Supports Services modules such as IPsec, firewall, SSL VPN

Intrusion Prevention System (IPS) Modularity

Chassis supports up to 4-, 6-, 9-, and 13-slot chassis for redundant supervisors and line cards

Supervisor engines supporting up to 15 Mpps with broad range of edge services

Support for Shared Port Adapter (SPA) and SPA Interface Processors (SIP), which offers intelligent services.

Supports up to 12 SPA bays

Support for the Enhanced FlexWAN module, which offers Port Adapter investment protection

Cisco 7600 Router’s Price &Availability

Cisco 7600 series ranges from US$5000 to US$20000, not all the types are required by enterprise head offices. There are some 7600 series items such as Cisco 7606, cisco 7600 series router, Cisco 7609-S, Cisco 7606-S; these are popular among large enterprises. Prices of Cisco 7606 and 7600 series router are available here:

CISCO7606:List price: US$6,000.00 / Wholesale Price: US$2,940.00

CISCO7609:List price: US$10,500.00 / Wholesale Price: US$5,145.00

cisco 7600 router: List price: US$6,000.00 / Wholesale Price: US$2,940.00

cisco 888 router: List price: US$10,500.00 / Wholesale Price: US$5,145.00

If you want to know more pricing and purchasing information of Cisco router and other Cisco IT equipments, you can visit Cisco router at RouterSwitch.com…

Why Cisco?Reasons to Choose Cisco for Enterprise, SOHO and Home Network

2011-07-20T01:01:00.001-07:00

Cisco, famous for supplying all kinds of network equipment and flexible networking solution for small to large business, definitely, is the premier network gear provider worldwide. Owning large numbers of fans,buy Cisco is always proud of providing the platform for campus, branch, data center, and wide-area networks that are highly available while integrating security at all levels of the network, helping to ensure the optimized delivery of application and communications, and providing inherent manageability. How to achieve it? Why Cisco? Let’s figure out what makes Cisco become NO.1 in the networking solution and device.

Several reasons help Cisco to be the computer networking giant

Reliability

used network hardware is extremely reliable and Cisco has an excellent history in helping diagnose and fix any software issues with their equipment. Cisco offer 24*7*365 support which covers technical support and advanced hardware replacement.

Manageability

Managed switches provide remarkably better uptime as a result of enhanced diagnostics, allowing trained engineers to isolate network problems in a fraction of the time required with old-fashioned hunt and pluck troubleshooting. used cisco equipment Router management features allow sophisticated configuration, utilization tracking, and diagnostics. Advanced features, like BGP enable non-stop Internet connectivity, and really separate Cisco from the pack.

Scalability

Cisco solutions easily scale from Small Business Start-ups that want reliable managed workgroup switches to Enterprise-class Corporations that demand flawless uptime, need secure wireless networks, managed layer 2 and 3 switches, dependable routing, firewalls, intrusion detection systems, and the software to manage it all.

Variety

Wide range of Cisco network products are offered, including routers, switches, VPN concentrators, wireless, firewalls, IP Phones VOIP, etc. Satisfying Cisco fans by providing various Cisco network equipment and solutions.

Interoperability

Cisco provides legendary interoperability, providing real assurance that your investment in Cisco gear is ready for whatever tomorrow brings.

Enterprise Class Features

Depends on the router capabilities and the IOS image you have, you can have an enterprise class features in your LAN. Advance firewall system, Intrusion Detection System, Multicast handling, VoIP, all of that you can have just by upgrading your Cisco routers later when your company got bigger.

Cost

Compared with other manufacturers, Cisco suppliers often provide a very competitive price of Cisco network equipment. New, refurbished and used Cisco routers, switches, firewall security, and so on, all different cisco used equipment items are offered on the market for you to choose. If you want to save money, used and refurbished Cisco network products is not a bad choice.

Nowadays, business requires a network platform that enables technology innovation and business-critical services across the entire network.Cisco has ability to provide an end-to-end network platform tied together by a common infrastructure and a common operating system, and manageable as a single, cohesive entity. Why choose Cisco? That’s it.