Layer 4 uses psuedo header to calcualte the checksum and layer 3 uses all the values in IP header to calcualte the checksum value. But at Layer 2 ,CRC is calculated from ethernet header and payload.From layer 2 point of view payload is made up from l...
Running BGP connection between my router and ISP. Have applied route-map in inbound direction blocking all the prefixes except default route.Everything works fine.But when i check "sh ip bgp neighbor x.x.x.x received-routes" output, i could see many ...
Hi Experts,is there any way to list down the interfaces which has ACL applied. I use the following command,sh run | i ^interface [A-Z]*|ip access-groupbut it lists down all the interfaces along with the ones which have ACL. But i want to see only the...
Why orgin attribute is called as well-known mandatory. I understand well-known mandatory attributes must be sent with each and every updates.As-Path is crucial for loop prevention system and Next-hop address is mandatory for forwarding packets.But wh...
Hi Amjad,Here is the output from sh version..Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRB2, RELEASE SOFTWARE (fc1)Technical Support: http://www.cisco.com/techsupportCopyright (c) 1986-2007 by...
Alex,Thanks for your response. I tried it but it does the same thing.it lists all the interfaces..Sorry about the rating.. I accidently clicked it and was not able to modify..Thanks,Arun
