[j-nsp] L3VPN PE-CE multihoming with OSPF

[Leigh Porter]

Hey Folks,

I have a somewhat typical duel PE and duel CE scenario. However, the two PE and two CE routers are all in the same subnet and the two PE routers routing instances can see eachother over OSPF.

I'm not sure if this is wise.

Should routing instances belonging to the same MPLS VPN be able to exchange routes over OSPF when OSPF is the PE-CE routing protocol and those OSPF routes will be part of the VPN's routing table and exported with BGP?

Could there then be an issue where a route is learned by PE-A from PE-B with OSPF, then from PE-B to PE-A with BGP and then around and around creating a route that never gets anywhere because it's self sustained?

--
Leigh Porter

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please visit http://www.symanteccloud.com
______________________________________________________________________