On Fri, 31 Jan 2003, Michel Py wrote: > > The specific format of global unicast address under the 2000::/3 > > prefix is: > > | 3 | n bits | 61-n bits | 64 bits | > > +---+--------------------+-----------+----------------------------+ > > |001| routing prefix | subnet ID | interface ID | > > +---+--------------------+-----------+----------------------------+ > > I have a dumb question about this: I read a while ago in some RIR > documents about the "hard boundary" at /64 and the "soft boundary" at > /48. Technically, the subnet ID can have any number of bits, but I > thought we would want to encourage the use of 16 subnet ID bits, which > would make n=45. > > I think there could be something such as a recommendation or a should in > the draft.
I disagree about recommendations on this to-be-normative RFC. An informative reference for recomendations in the IESG/IAB document is most that could be acceptable. -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings -------------------------------------------------------------------- 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] --------------------------------------------------------------------
