Also, some mechanisms (such as SCTP) need API changes. I think this is EXTREMELY dangerous as this is a huge stumbling block for IPv6 adoption. The latest OSes support IPv6 and getting a tunnel or 6to4 is fairly trivial, but we the reason why there is very little IPv6 adoption is that the applications simply fail to use it when it's available. This is something we absolutely can't have with multihoming, in my not so humble opinion.
Ok, my position is: we don't want to change the API right here, right now. The cost/benefit ratio for doing this just for multihoming is out of whack. Don't forget that if the multihoming solution we come up with isn't attractive enough, people will simply push for PI in IPv6.I think this brings up the issues from the IAB meeting yesterday, what do we want to change when.
That we need to change large parts at some point, I think is clear. Question is if this will really influence IPv6 adoption or not (if the change takes us 10+ years - after we have consensus, is it really an issue). And what we do in the mean time. It will be interesting to see what the IAB comes up with.
Yes, this was a quite disheartening list. Is it online somewhere, BTW?I personally think that Brians presentation from yesterdays IAB meeting was very good and pointed to the problems. And the problems with the solutions.