I am running a Full Mesh Layer-3 VPN for my Internet Services in my Service Provider backbone. The MPLS network is divided into two regions; each having an e-BGP peering with a TIER-1 ISP.
Our intention is to learn only default routes from the TIER-1 ISP and mark it with a community. To localize the traffic, this community can be matched at each PE level to manipulate the Local Preference.
The current issue is that, since it is a Full Mesh VPN, even though I map a different community at each IGW, the router is still advertising the other communities what the other IGW has set.
Please note that all Routers have different RD values. My P Routers are acting as my RRs.
I will attach a presentation on this as soon as possible.
That's what I said in my previous reply ;-). You should configure Import-map in each VRF that requires Internet access instead of applying the route-map directly on your VPNv4 session.
Also you should use one community for the Western Region and another for the Eastern Region so that way PE in the Western side will use their IGP metric as a tie-breaker first to IGW1 or 2 for the western side and then for IGW1 or 2 for the Easter side.
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Cisco Software Manager Server
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CSM Server supports a set of finite RESTful APIs. The fir...