Re: OT: prefix length used by backbone routers

[Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>]

Randy;

> >> are you asking if the forwarding look-up is longest match on 64 or 128
> >> bits?  i think the latter is mandatory.  we do allow allocation of /128s.
> > Can't backbone routers assume 48 bit look-up for best effort unicast
> > forwarding?
> 
> given the current addressing and routing model, i don't think so

Are you saying there is no fixed boundary at /48 even in the
backbone?

Then, it may affect multi6 proposals.

> > Though who want to sell value-added (such as MPLS) routers may
> > disagree, it is important for low-cost high-speed Internet.
> 
> i suspect the days of forwarding lookup speed problems are past us

I'm afraind you are assuming maximum router speed as slow as 10Gps.

						Masataka Ohta