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

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