(sorry if it gets a duplicate) > I'm inclined to believe that dual-stack provider networks are going to > be relatively rare, and may not exist at all. I think it'll either be WIDE (AS2500) and two of the major ISPs which deploy IPv6 are running dual-stack. i bet others too (Verio, Internet2, anyone?) it is not economical to run two separate physical link across the pacific ocean. itojun _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf