Margaret, >> Michel Py wrote: >> PI = Does *NOT* scale.
> Margaret Wasserman wrote: > Starting with this assumption leads us to two bad choices. I don't agree that we have only two choices. The role of the IETF is not to pick the least worst among bad solutions but to develop better ones. > Maybe it is time to question this assumption? By your own account, we have a scalability issue with PI. See the reply to Dan I just posted. How do you handle a billion routes? I'm not the one that came up with this billion figure (although I agree it's a good ballpark one). We are not talking about barely providing the same features as IPv4 here. IPv6 does not do a lot better than v4, it will not be successful. In other words: - Doing IPv6 NAT vs. IPv4 NAT is not worth a 10 year long v4-to-v6 migration effort. - Limiting the number of PI prefixes to a few like they are today is not worth the migration effort either. > I said what I really meant... > I think that we should find a way to return to stable, > globally-routable, provider-independent addresses that are > allocated to homes & enterprises. Addresses that do not > change when you change ISPs, and that cannot be changed by > your ISP. Real PI addresses. Just like the original > addresses allocated in IPv4. > Brian Carpenter wrote: > But the problem remains as hard as it was in 1992. We don't > know how to aggregate routes for such addresses, and we don't > know how to scale the routing system without aggregation. > Solve either of those problems and you're done. Exactly. Margaret, you are gambling on the fact that we will find a solution to a problem that we have been working on for the last 11 years and remains unsolved. PI does not scale. As of today, the closest thing we have is ID/LOC and aggregating the locators. 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] --------------------------------------------------------------------
