On Tue, Apr 05, 2005 at 11:00:11AM +0100, Michael.Dillon@radianz.com wrote:
Now, a set of IPv6 policies in which no globally routable prefixes are longer than /32 allows router manufacturers to optimize memory usage and design router tables to only carry those 32 bits of the IPv6 address.
We don't have those policies. Supposed-to-be-globally-routable /48s do already exist.
This will conserve memory and allow the routers to scale easier.
If we really consider crippling CIDR lookups to less than 128 Bit: I don't think that "64 bit or bit 48" makes much of a difference in terms of router scalability... but I'm guesstimating here with about nothing to back that. Other folks might comment.
Our job is to make a sensible policy that allows the use of IPv6 to scale smoothly so that it meets the needs of humankind for the next generation or two. Let's not be so arrogant that we try to solve all addressing problems forever. That is not necessary.
ACK. And our job is to design something desireable, not something that has serious shortcomings compared to IPv4 (no PI for endusers). Best regards, Daniel -- CLUE-RIPE -- Jabber: dr@cluenet.de -- dr@IRCnet -- PGP: 0xA85C8AA0