Dear all,

I am a little confused as to how VRFs, vpnv4 and EIGRP work together.

I have the situation that two PE routers (6500s) are connected via MPLS (via 
the core). These two PEs also have a second direct connection (ethernet) 
between themselves.

I has hoping to use this backdoor link for one of the VRFs, so I thought it 
should be possible to run EIGRP over this link.

I have read about bgp cost community, but I do not quite understand how the 
routing table is organized in the individual VRFs.
I have read that administrative distance is not checked first, but do not 
understand how this really works.
I have managed to get this to work, but ONLY if I redistribute EIGRP/BGP on 
both PEs and then "bgp bestpath cost-community ignore".

I had assumed that each VRF has its own routing table, and that this is 
populated from the routing tables in the various protocols.
Is the VRF routing table really the BGP one?

Does anyone have a link to a technical description of how the VRF tables are 
actually implemented?

Confused.

Regards

Andrew
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