Hi Dino. I'm not really asking about TTL processing for tunnels in general... I'm asking specifically in the context of virtual network service, where tenants are connecting to virtual networks expecting either L2 or L3 service. What expectations to the TSes have when it comes to TTL modification?
In the L2 case, tenatnts expect to be given service equivalent to an L2 broadcast domain. I.e., nodes can talk directly to each other at the L2 level using unicast/multicast. This is what we usually think of as being attached to a shared "link". But what if the service being provided is L3? In this case TSes are only sending IP packets, but all TSes are directly reachable (i.e., without leaving the VN). What expectation do TSes in this type of situation expect of the TTL processing? Do they even care? Thomas _______________________________________________ nvo3 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nvo3
