On 2010-10-09 11:42, Martin Rex wrote: > Brian E Carpenter wrote: >> 1. The transition model was complete - because it was based on vendors >> and ISPs supporting dual stack globally well *before* IPv4 exhaustion. > > Huh? Hardly anyone support IPv6 these days. Sorry Martin, to write it more clearly: The transition model in 1995 was based on the assumption that vendors and ISPs would support dual stack globally well *before* IPv4 exhaustion. The fact that this did not happen is the problem. Brian _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf