Mark, > Mark Smith wrote: > I've always thought we were trying to solve this same > single problem, and GUPIs and GUSLs were basically the > same thing.
GUSL solves the merger thing, but not the VPN. It was my original intent that GUSL could solve the VPN and inter-site connect as well, but Keith convinced me that it would be an architectural change and overall not a good idea to do. I see GUSL as a relatively low-ambition proposal that would solve some of the problems associated with site locals (but not all) and could reach consensus quickly. > Or is it that the wording below stating that GUSL > addresses SHOULD NOT be used between sites if traffic > will transit links _that are part of the public > Internet_ (excluding a private VPN tunnel over the > public Internet) ? If so, I agree with the text, > though it probably needs to be a bit more explicit > about what it is SHOULD NOTting. Site-local addresses MUST NOT be routed outside the site. GUSL *are* site-locals, and therefore must not be used for site-to-site communication. This part in the GUSL proposal is un-necessary as it basically is what is in the DS today; I included it to remove the potential misunderstanding that I intended to use GUSL to solve the inter-site connect as well. I'm happy to include "site-to-site communications MUST use GUPI addresses" as soon as there is a GUPI draft available. GUPI is the next step to GUSL. They could be merged, but I think GUPI is not ready for consensus, so there is some value in separating them. In other words: I think that GUSL is a no-brainer. It's not a miracle, but it does address two issues that I hear were a pain associated with site-locals: ambiguity and multi-site. The point I am trying to make is: let's nail GUSL if we can, and get something done that everyone could agree on. _Then_, let's work on inter-site communication, which is what GUPI is about, and which requires a lot more work. Michel. -------------------------------------------------------------------- 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] --------------------------------------------------------------------
