[c-nsp] BGP communities and VRFs...

[Jeff Kell]

On 5/19/2011 3:53 AM, Phil Mayers wrote:
> On 05/18/2011 07:01 PM, Jeff Kell wrote:
>> If you have VRF-enabled a router (well, a 6500), does this affect BGP community
>> processing at all?  (Suspecting community overlap with VRF route distinguishers?)
>>
>> Trying to get a new BGP peer up that has VRF-enabled, but BGP running in global, and a
>> matching community / route-map configuration in the legacy side (no VRFs) doesn't appear
>> to be working on the VRF-enabled one.
>
> We use as:xx-style communities on BGP peerings inside MPLS VPNs with no
> issues.

Odd.  I managed to get it to work, just not as expected.

Legacy (no VRF enabled, 12.2(18)SXF17) "ip community-list 10 permit 65532:888 no-export"
is accepted, but on VRF-enabled 12.2(33)SXI3 becomes "permit 4281598840 no-export".

An "ip community-list 100 permit 65532:888" stays in that format, but matching on an
incoming route-map doesn't match 100, it matches 10.

And yes, it's the cymru bogon feed, if that community looks familiar :)

Jeff