On Sat, 25 Aug 2007 20:44:45 -0400 "William Herrin" <herrin-nanog@dirtside.com> wrote:
On 8/25/07, David Conrad <david.conrad@icann.org> wrote:
In another mailing list, someone has asserted that "noone believes router vendors who say [they can support 2M routes today and 10M with no change in technology]".
Do you believe router vendors who state they today have "capacities on the order of 2 million ipv4 routes and they have no reason to expect that they couldn't deliver 10 million route FIB products in a few years given sufficient demand."?
David,
NNTP is similar to BGP in that every message must spread to every node. Usenet scaled up beyond what anyone thought it could. Sort of. Its not exactly fast and enough messages are lost that someone had to go invent "par2".
Netnews was originally designed for 300 bps dial-up modems with O(1) hubs. Fortunately, the technology evolved to meet the load. Will BGP evolve that way? Netnews didn't demand anything more in common than a file format, and the only major change in it was within 2-3 years after it was invented. BGP doesn't have that property. --Steve Bellovin, http://www.cs.columbia.edu/~smb