19 Mar
2002
19 Mar
'02
5:12 p.m.
> > I know of 323 IXes today. > > http://www.pch.net/documents/data/exchange-points/ep-in-addrs.xls > > Well, this is one place where we diverge... :) > I'd state that there are 323 prefixes in use at exchanges > but that there are somewhat fewer switch fabrics in place, e.g. > a single switch fabric can & does host more than one prefix. Correct. And there are sometimes multiple switch fabrics in one facility, usually in the case that there are separate fabrics/subnets for IPv4 unicast, multicast, and IPv6. -Bill