Robert Elz wrote: > > Date: Wed, 04 Jun 2003 07:29:05 -0700 > From: Bob Hinden <[EMAIL PROTECTED]> > Message-ID: <[EMAIL PROTECTED]> > > | I think you are suggesting that the draft be changed to reuse the FEC0::/10 > | space with a resulting 38-bit global ID. This would allow for > | 274,877,906,944 prefixes, or 30 per person in 2050. > > I trust your calculations, so assuming they were all going to be unique, > then yes, 50 years from now people wouldn't be able to have more than 30 > or so non-routable /48's each (oh, such suffering!) > > But of course, they're not going to be unique, and don't have to be, so in > practice, the limit per person would be much much higher (not quite > 274,877,906,944 each, as the user will want to remain distinct from some > others, but perhaps within a few orders of magnitude of that).
So, how about stating that: FEC0::/48 is reserved and not to be used. (This is a shot at backwards compatibility for existing usage.) FEC0::/11 is followed by a 37-bit number randomly allocated by the user. (We should recommend a method, and zero is forbidden.) FEE0::/11 is reserved for future use. (Giving us time to work out how a fee-paying (pun) registry might work.) Brian -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
