[c-nsp] IPv6 BGP on 7200

[Stefan M. Brandl]

On Tue, Feb 27, 2007 at 11:10:53AM +0000, Paul Cairney wrote:
> On Tue, Feb 27, 2007 at 09:40:38AM +0100, Stefan M. Brandl wrote:
> > Hi,
> > I have two Cisco 7206-NPE-G1, connected via OC3.
> > Both routers do BGP with IPv4 and v6.
> > The v6-session goes down every 10-30 minutes:
> > 
> > Feb 27 08:08:18: %BGP-5-ADJCHANGE: neighbor 2001:16E0:0:5:0:DEAD:BEEF:1 Up 
> > Feb 27 08:15:54: %BGP-5-ADJCHANGE: neighbor 2001:16E0:0:5:0:DEAD:BEEF:1 Down Peer closed the session
> ~
> > The IPv4-BGP-session is stable.
> > Both routers also do v4 and v6 BGP to other routers just fine.
> > Where could be the problem? How to debug?
> > 
> 
> Stefan,
> 
> Did this occur following an upgrade to 12.2(25)S12 by any chance?
> 

Yes, one router is running 12.2(25)S12

> I have seen similar issues with v6 sessions that had previously been stable for > 1 year prior to the upgrade, as yet I have no solution.
> 

Oh, that's bad news :-(
I look if I can do a downgrade.


Stefan
-- 
Stefan M. Brandl                                 R-KOM GmbH & Co. KG
IP Network Operations                            Greflingerstr. 26
PGP-Key at http://www.brandl.eu/pgpkey.php       93055 Regensburg