[c-nsp] 7513 multilink interface issue

[Rodney Dunn]

It does. I've seen it before years ago.

get 'sh ppp multilink' from the RSP and VIP console (if-con slot)
and sh contr cbus.

Make sure you are in dCEF mode, all links are on the same PA, and on 
later(est) 12.4 mainline (12.4(25) or 12.0(32)S(latest)) on Cisco.com.

We had bugs in how we manage the member links of the bundle.

Rodney



Todd wrote:
> 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?
>> _______________________________________________
>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/