North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Getting a "portable" /19 or /20
On Tue, Apr 10, 2001 at 03:45:10PM -0400, Greg Maxwell wrote: > > On Tue, 10 Apr 2001, Majdi S. Abbas wrote: > > > On Tue, Apr 10, 2001 at 08:27:54AM -0400, Greg Maxwell wrote: > > > The reason they don't allocate /24's is because without aggregation the > > > Internet is not scalable. Perhaps they are being too agressive, but the > > > reasoning is sound. > > > > Aggregation buys time, that's it. Aggregation does not make the > > current routing methods any more scalable. > > In IPv4 yes, because you can't have perfect aggregation, too much network > multihoming and old prefixes and it's to painful to change address blocks. > > In IPv6, if implimented right aggregation provides for virtually limitless > scalability for unicast traffic. So long as "implemented right" means "edge sites are no longer permitted to multi-home at the IP layer". If those are the constraints of your routing policy, IPv4 will scale too. Very nicely. Joe
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