Re: Peering Table Question

They detailed private and public peering (see their tables). They did it using MIDS which did 1.2 million traceroutes from various beacons located thruout the Internet.

Very easy to determine who is a tier-1 and tier-2 ISP.

I still do not understand what this pseudo-marketing distinction is. May I conjecture, in the light of the current discussion, that a "tier 1" ISP is one which makes a net profit from "peering" and a "tier 2" is one that does not ? Or is it that a "tier 2" ISP has real customers ? Peter