On 2010-02-04 05:45, Noel Chiappa wrote: > > From: "Joel M. Halpern" <j...@joelhalpern.com> > > > definitionally, there really is not that much growth left in IPv4. > > Not necessarily; mind, I don't _know_ that there is going to be more growth, > but I can see plausible circumstances where there is continued substantial > growth in the number of routes in the DFZ. > > E.g. if some organizations which currently have large chunks of the > globally-visible IPv4 namespace drop back to using smaller chunks of the that > namespace, and the chunks they return are broken up into many smaller pieces > for use by a number of currently non-connected entities.
That is the true unknown for IPv4 - now that we have reached the end game in prefix allocation, will the resulting food fight recreate a swamp of a few million tiny prefixes that can't be aggregated? This is the main reason that my CCR paper says: don't extrapolate the graphs. We really don't know if the number of prefixes per origin AS will remain stable or grow signficantly. > > The exact shape of the future can be awfully hard to predict. If you'd asked > people back in 1995 if we'd be here today, people would probably have gawked > at you... Never say 'Never'... :-) And yet, they did deploy CIDR, which put us where we are today. Brian _______________________________________________ rrg mailing list rrg@irtf.org http://www.irtf.org/mailman/listinfo/rrg
