[c-nsp] VPNv4 AFI Editing Causes BGP Failure

[Richard Harvey]

I noticed that configuring 'route-target export blah:blah' causes peers
in that address-family to reset. A syslog is then output to confirm this
is due to 'VRF config change'.

Oddly, route-target import or any VRF export map operations do not cause
this.


 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Tinka
Sent: 21 May 2007 15:26
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] VPNv4 AFI Editing Causes BGP Failure

Hello all.

I've experienced, on more than one occasion, a situation where editing
the VPNv4 address family under MP-BGP causes running BGP sessions to
flap. Specifically, this occurs when I add new MP-iBGP neighbors to the
configuration of the router in question.

I've experienced this on 12.3(22) as well as 12.4T (forget the actual
train). Boxes tested were 7206-VXR and 2600XM.

This only appears to affect the VPNv4 AFI. Editing of the IPv4 and IPv6
AFI's does not reproduce this issue.

Has anyone else seen this? Does it signify anything operationally
meaningful MPLS/VPN's?

Cheers,

Mark.
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