IPv6 PI allocation

[Jun-ichiro itojun Hagino 2.0]

> > 	so cisco is assuming that /64 boundary on all the routes, right?
> > 	i guess cisco needs some clue injection - i'm happy to do that if
> > 	they want to.  see /64-or-/128 discussion on my previous email.
> 
> that does not matter. 144 bits does cover 128 bit anyway.

	don't we need to keep:
	- destination/prefixlen, which would be 128 bits + prefixlen(8bit)
	  at least
	- nexthop, which would also be 128 bits (could be a index of
		routing table, but that would be 20 bit for 1M entries)
	for each entries?

itojun