[c-nsp] Cisco BGP Running on VRF?

[Christian MacNevin]

That 'feature' has annoyed me for years. Some time back I asked them  
to fix it under IIRC 12.2(18)S - pre SR or SB or whatever -
and they did so, but only for one throttle. 12.2(14) I think was still  
around at the time and they took that one forward. The reason was
that everyone's instrumentation may have been relying on the vpnv4  
command so they didn't want to change it to make sense.

This is some time ago so forgive my poor memory on the topic. But  
yeah, it's annoying.



On Oct 2, 2008, at 7:46 AM, Murphy, William wrote:

Sorry my original question may have been lost...  You are exactly
right...  I was confused that show ip bgp ipv4 did not show anything
even though I configured bgp with address-family ipv4...  Everything
shows up under VPNV4...  Thanks to everyone for your input/feedback...

-----Original Message-----
From: Tim Franklin [mailto:tim at pelican.org]
Sent: Thursday, October 02, 2008 3:42 AM
To: Murphy, William
Cc: Gert Doering; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Cisco BGP Running on VRF?

On Wed, October 1, 2008 8:12 pm, Murphy, William wrote:
> Thanks Gert.  I suspected that was the case.  I am probably displaying
> my VRF/MP-BGP ignorance here, but is there any technical reason Cisco
> could not allow you to run BGP in a VRF without doing VPNV4 similar to
> how you can run an IGP in a VRF?

Am I missing part of the question here?

You can run BGP fine in an addresses family - I do this all the time for
vrf-lite on CEs with a session to the PE in each VRF for each VPN.  I
think it still creates the vpnv4 address family, but you don't have to
configure any peers in it.

The commands are slightly confusing in this instance though, it *is*
still
'show ip bgp vpnv4 vrf ...' to show the bgp table for the VRF, even
though
you're not using the VPNV4 session.

Regards,
Tim.


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