Routing

Can anyone help me out to understand the extended ACL commands. I saw an ACL with command "exec cmd" at the end. What is the actual purpose of using "exec cmd" in ACL. For better understanding acl line is given below: 390 permit tcp host 10.65.17.1 ...

what happens if we change bandwidth only on one side of the serial link and on the other side is default example:on on side we changed to 4mbps and on the other side it is default value of 1544kbps or any other value but not same ??

Hi CISCO, Im preparing for my CCNP Routing certification and I'm learning about Redistribution and its problems. Apart from route-maps, distribute list, prefix list, policy based routing, there should be a protocol which can manage those problem auto...

Hi,     I have the following small topology currently setup. But I can I understand how could this be working. R11, R12, and R13 are all running IS-IS as their IGP. R11 and R13 have an I-BGP session between themselves and they are both adverting a re...

Hi Guys,  I have a potential layer-3 loop in my control plane while implementing a particular design. which is approved by my design team. I will the try to explain this in detail. If someone can explain what is happening here, it will be a great he...

Hello I would like to make a ACL with hostnames.   The problem is that the router only looks at the hostname to Ip when i insert the command. How can i use a hostname in an acl that would change the Ip when it has changed. So the router should loo...

Hi,  I need some advice about a L2 VPLS WAN service we have purchased, we have agreed 3 queues with a 25% priority queue as the highest. We need to Mark traffic as it exits onto the WAN with 802.1p markings as the carrier does not inspect DSCP, I am...

Dear All  Anybody can give me the solution,whenever putting the HWIC in Cisco 2911 Router. Error message is getting  WIC Slot 0:         Unknown WAN daughter card         WIC module not supported/disabled in this slot         PCB Serial Number  ...

Hey everyone,  Just wanted to run this out there to get some additional opinions and see if I was missing anything: I am looking at possibly deploying OTV w/FHRP isolation (via ASR1ks) across two data centers and removing the stretched layer 2 fabr...