[c-nsp] HSRP Packet Duplication

[Ash Garg]

Hi, do you have an access list on the inbound interface with the "log"
keyword?



Ash

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Alexandra Alvarado
Sent: Friday, May 25, 2007 8:13 AM
To: cisco-nsp at puck.nether.net; 'Alexandra Alvarado'
Subject: [c-nsp] HSRP Packet Duplication

Hello,


I have trying to insert a couple of cisco 7206VXR NPE-GE with HSRP connected
to a CATALYST 6500 SUP720.

At first I tried with IOS 12.2(31) SB3X and next with 12.2(31) SB5 IOS but
without success because after a random time I got packet duplication:

64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.00 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.33 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.54 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.57 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.95 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=9.99 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=10.6 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=499 ttl=253 time=10.6 ms (DUP!)
64 bytes from 200.110.67.33: icmp_seq=500 ttl=253 time=2.07 ms
64 bytes from 200.110.67.33: icmp_seq=500 ttl=253 time=2.11 ms (DUP!)

I tried to simulate the problem in a Lab but all seemed ok.  Additionally I
read an http page, it detailed a similar problem:
http://web.nether.net/lists/cisco-nsp/7123.html where the possible solutions
were:

- Disable CEF
- Remove HSRP
- Use IOS 12.0S train

But I cannot apply any of these solutions because I need CEF and HSRP and
there is no IOS 12.0S for NPE-G2


Thanks


A.A.A.A.

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