Historically, the members of the NET group argued that the decision of having IPv6 on the Long Haul Network (LHN) is a DM decision.
This RFC is to collect opinions about it.
Facts about the LHN
- The LHN is a private network from La Serena to SLAC
- Links are either L1 or L2 using VPLS on some paths.
- There is BGP on top of the links mostly to simplify configurations and to do failover.
- There's no IPv6 enabled inside Rubin Network.
If we can guarantee that we won't have a path inside the LHN in ipv6, I would say that we should stay in ipv4. However, since we can't guarantee that all the links won't have ipv6 requirements, especially the ESNet link between Atlanta and SLAC, we should implement ipv6 now (dual-stack), before the hard requirement comes in the middle of operations.