On May 3, 2006, at 11:41 AM, Todd Underwood wrote:
to underline a point made previously though: Tier-1 is a routing architecture term that doesn't have any useful direct bearing in how best to select a service provider.
s/routing architecture/business/ It is possible to be a "Tier Two" provider and use communities & route-maps to look like a Tier One. You purchase transit, therefore are not tier one, but are unreachable through your transit unless the end point is a downstream of your transit provider. Architecturally, those are identical situations. Different commercial agreements, though. -- TTFN, patrick P.S. How much you wanna bet some of the "tier ones" are paying other "tier ones" more for fiber or colo or something than the "tier twos".