[c-nsp] MPLS VPN EIGRP tag/route redistribution ideas at PE

[Diogo Montagner]

Hi Ben,

Did you tried to use the Site of Origin feature ?

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t8/feature/guide/gtmvesoo.html

Best regards,
Diogo

On Thu, Mar 13, 2008 at 2:28 AM, Ben Steele <ben at internode.com.au> wrote:

> Scenario: cluster of PE's terminating DSL CE's running EIGRP between
> CE and PE in MPLS VPN's, so the CE's could terminate on any one of the
> PE's.
>
> Problem: would like to identify EIGRP routes from certain neighbors
> for BGP redistribution to use "set extcommunity cost pre-bestpath x x"
> for weighting within the vrf, unfortunately when you are talking about
> multiple CE's on the same PE it becomes hard to distinguish the routes
> from one to another in BGP eyes as the origin is incomplete.
>
> Solution: I would like the solution to be independent of the CE if
> possible, so far I have thought about a route-map that would contain
> the prefixes I am interested in configured on each PE that would set
> the pre-bestpath based on the route-map prefixes so that way it
> doesn't matter where the CE lands the prefixes get the appropriate
> setting. This is a little bit of an administrative over hang should
> the C decide to change their prefixes at any stage, what I would like
> is some sort of tag I can put on within the eigrp vrf that will carry
> through to the BGP vrf to match on, so I can match purely based on the
> EIGRP neighbor on the EIGRP side of things then just have BGP match on
> a tag/value, any ideas?
>
> Cheers
>
> Ben
>
>
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-- 
./diogo -montagner