Thank You for reply. > Basically, L2VPN Pseudowire Switching and Back-to-Back > VLAN's are a single point of failure. You may add redundancy > by replicating NNI sessions, but this may not be scalable > from a management perspective. I just want to add little comment this statement (maybe I'm wrong..). Talking about the Cisco equipment, for option B we cannot build a redundant scheme even replicating NNI; because point-to-point VFIs have not ability to check, is the neighbor down. But for back-to-back we still can use redundant links (maybe there will be questions for intervendor compatibility, Phil re:).
> Option C. I can't say we've looked at that yet. The main question is security - each AS will have reachability to all the internal next-hops in the other AS. Otherwise, this is the most scalable and flexible option. Best regards, Olga _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
