Hi Ted and Michael, What this home network join/split topic with respect to ULA's is a draft that targets becoming at least Informational.
I think several of these e-mails have hit on the problem, I don't see any existing I-D's or RFCs that solve the problem. Don On 10/17/14 9:03 AM, "Ted Lemon" <[email protected]> wrote: >On Oct 17, 2014, at 10:54 AM, Michael Richardson <[email protected]> >wrote: >> I will go back and read James' message about joins and splits. >> It seems that we have this problem with GUAs as well, and it seems that >> the whole address selection issue exists without ULAs, as long as one >>has >> multiple ISPs. > >The issue with joins and splits is that you would like your numbering to >survive a temporary network partition, but to not survive a permanent >network partition. I think this problem is solvable, and have some >ideas about how to do it, which are half-baked and probably won't work >without tweaking. > >E.g., when a homenet chooses a ULA, it could divide the /64s evenly >between all of the participating homenet routers. If there's a >partition, the homenet routers get to keep the /64s they got to begin >with, but if after some period of time (TBD) the partition hasn't healed, >one of them (chosen back when the network wasn't partitioned) begins a >transition to a new randomly-chosen ULA. If new routers are added to a >homenet, HNCP should be able to balance out the pool of free /64s so that >every router has some to keep during a partition. > >If two homenets each with their own ULA are joined, one of the ULAs is >deprecated with a long tail. It would also be worth factoring >power-cycling into this: if a homenet router that had a ULA is powered >off, then powered back on, connected to a new homenet, its ULA is >probably the one that should be deprecated. This will still fail in the >case that there are devices that are still using the prefix, but I think >we're now down in the really unlikely scenarios that we don't have to >solve. > >_______________________________________________ >homenet mailing list >[email protected] >https://www.ietf.org/mailman/listinfo/homenet _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
