> From: Keith Moore <[EMAIL PROTECTED]> > forcing most of the internet into a tree structure has its own scaling > problems.
A tree structure is not at all needed. What is needed is more aggregation. Please see the definitive mathematical analysis of routing scaling via aggregation: Leonard Kleinrock and Farouk Kamoun, "Hierarchical Routing for Large Networks: Performance Evaluation and Optimization", Computer Networks 1 (1977), North-Holland Publishing Co., pp. 155-174. which explains this all clearly. > the only benefit that IPv4 has over IPv6 (relative to routing table > size) is that IPv4 discourages growth of the Internet. "Cazart!", as Hunter Thompson would say. So perhaps what we really need, instead of IPv6, is something that looks less like IPv4 (with a few fields made larger). Noel