Internet Captivity and De-Peering Menace

Source Brown/Renesys

Have you seen this one ? :-D ... No? Then, you should go to the newest NANOG movies! It's interresting and somehow a bit funny!

As you might already guessed, the Renesys guys addressed some de-peering cases esp. the latest one between Sprint and (as usual) Cogent. But I won't tamper with that issue. Just a minor thing : they used the term DFZ (Default-Free Zone) replacing the usual "Tier-1" term. I'm not sure whether they indeed introduced that term or maybe they just used it because somebody previously has introduced that ?! somebody knows?

Peering Wars

This was actually a quite old story issued by Renesys several months ago and it was also presented at NANOG 43 (June 2008). The story took a case of network-depeering and the actors were Cogent and Telia. At that time, both Cogent and Telia are considered as "near" Tier-1 providers. Why "near"?

• Cogent gets (got?) transit from NTT (formerly Verio) to reach AOL (ATDN?).
• Telia appeared to get transit from Verizon to reach certain networks.

Additionally, it is worth to mention that

• Tier-1 providers act like a cartel and have no incentive to add members
• "Near" Tier-1 providers can try to buy their way into the club (via "paid peering")