They are, but even the larger players get into peering disputes with eyeball networks. Level3 and Comcast had a huge peering spat a few years ago (via Netflix). Everyone's ports run hot with China Telecom and China Unicom.
It's almost always political (revenue) problems and rarely technical.
That said, I wouldn't pick up Cogent with their negative attitudes towards IPv6.
It's almost always political (revenue) problems and rarely technical.
That said, I wouldn't pick up Cogent with their negative attitudes towards IPv6.