Brian E Carpenter wrote: > Thanks for the facts. It does seem like a childhood illness > though - obviously it isn't sustainable as IPv6 grows up.
It indeed most likely won't in the very long term. But hopefully the id/loc mechanisms or shim6 or similar solutions will make sure that the "IPv6 DFZ" will only contain PA prefixes at a certain point. Which will limit the number of routes there significantly and still providing end-sites with full flexibility to change their up/downstreams on the fly. At a point where the IPv6 DFZ grows too large, ISP's will start filtering smaller prefixes (>=/48), and they will drop off the Internet, then immediately these sites will need to use id/loc. Hopefull the forced part never happens and people simply realize the constraints that we are then working in. It might also happen that vendors find ways to make it scalable and then everything is fine too. Up to that point though, there should not be an artificial barrier for end-sites to be able to get globally unique address space. The other point that they actually fit in the routing tables is a problem that can be solved with the above. Greets, Jeroen
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