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 Thursday, October 06, 2005

Nanog has been abuzz for a few days about the depeering of Level 3 and Cogent. This has now been picked up in the press in CNET's Network feud leads to Net blackout:

Two major Internet backbone companies are feuding, potentially cutting off significant swaths of the Internet for some of each other's customers.

On Wednesday, network company Level 3 Communications cut off its direct "peering" connections to another big network company called Cogent Communications. That technical action means that some customers on each company's network now will find it impossible, or slower, to get to Web sites on the other company's network.

Cogent has issued a statement dated October 6 2005 on the termination by Level 3 of peering:

Level 3 has partitioned its part of the Internet from Cogent's part of the Internet by denying Level 3's
customers access to Cogent's customers and denying Cogent's customers access to Level 3 customers. Level 3
terminated its peering with Cogent without cause (as permitted under its peering agreement with Cogent)
even though both Cogent and Level 3 remained in full compliance with the previously existing interconnection
agreement.