[c-nsp] Cisco 6500 packet loss

Saku Ytti saku at ytti.fi
Wed Feb 26 09:44:07 EST 2014

On (2014-02-26 06:30 -0800), naresh reddy wrote:

> svis are on the 6500 destination is 11 hops away and route is learned from BGP table

Lot of domain to cover here, 11 hops :)

Can you verify return path for working and non-working? Are they using same
path or different path?
Can you verify which direction packet loss is (if you have PC in both
directions, it's easy with iperf or so)

If you manage the path end-to-end, and if it is 7600/6500 you can try to check
path in HW via:

sh mls cef lookup DST detail
sh mls cef adjacency entry XYZ detail (XYZ from above output A:12345)

If you have DFC (in device you showed you don't have), you need to check for
ingress card DFC by prepending command with 'module X'


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