On Thu, 2003-04-03 at 09:00, Brian E Carpenter wrote: > Steven Blake wrote: > > > > On Wed, 2003-04-02 at 03:41, Brian E Carpenter wrote: > > > > > As I already said under another subject line, > > > what I understood we were deprecating is SL as defined > > > in the current address architecture, i.e. FEC0::/10. > > > > Do you mean the e-mail where you said the following? > > > > --> I prefer to think about this the other way round: kill the ambiguous > > --> space, which we have learnt the hard way is a mistake, and then > > --> design the alternative, which may well be unrouteable GUPI (and for > > --> all I care, starts with FEC::/10). > > yes > > > > > > That's the only formal definition of SL, so I don't see > > > what else we could be referring to. > > > > Well, I'm still confused. > > what do you think we are possibly deprecating, if it isn't the > current definition?
There have been several proposals to turn addresses in fec0::/10 into GUPIs or PUPIs (Probabilistically Unique PIs), similar to your note above). Since I wasn't in SF, I wanted to make sure that we weren't being asked to preclude those as well. For whatever it is worth, I think that ambiguous addresses are a disaster, but nothing is going to prevent those that want RFC 1918-style addresses from inventing them. It is better to have a well-defined prefix for this, rather than risk the chaos of people creating them out of the global space. I would be happy to see fec0::/11 set aside for private/experimental (including PUPIs), and fee0::/11 set aside for GUPIs. Any notion of site ID should be ripped out of all the specs. Regards, =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Steven L. Blake <[EMAIL PROTECTED]> Ericsson IP Infrastructure +1 919-472-9913 -------------------------------------------------------------------- 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] --------------------------------------------------------------------
