[c-nsp] 7513 multilink interface issue

Todd nsp at myzionetworks.com
Tue Aug 4 13:36:26 EDT 2009


When it happens, I can ping the remote end from the 7513, but nothing
outside of the 7513.  

For Example....

SERVER --ethernet--- 7513 ---multilink (2 T1's)--- END USER

1 multilink T1 bounces.

After the T1 comes up, the multilink interface and both T1's show as up/up
and 7513 can ping END USER, but END USER can't ping 7513 and no connection
to/from SERVER to END USER.

Hope that makes sense.

-----Original Message-----
From: Rodney Dunn [mailto:rodunn at cisco.com] 
Sent: Tuesday, August 04, 2009 1:24 PM
To: Todd Shipway
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 7513 multilink interface issue

That should never happen and is possibly a bug.

Can you ping directly over the bundle to the ip address on the other 
side when it's broke? If not, go to the latest code and see if it's 
fixed...or do some debugging: 'sh ip cef for other side of bundle, debug 
ip packet, etc...

Rodney



Todd Shipway wrote:
> We have several customers setup with T1's multilinked.  We are running
into
> a problem with a single multilink member bouncing causing routing issues.
> When a single T1 member of a multilink group bounces, traffic to the
overall
> multilink interface stops and we have to manually shut and no shut the
> multilink interface to get traffic flowing again.
> 
> Has anyone seen this before and if so, know what the issue may be?
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