nanog mailing list archives

Re: Level 3's side of the story


From: jmalcolm () uraeus com
Date: Sun, 9 Oct 2005 14:46:57 +0000


Richard A Steenbergen writes:
For anyone keeping score, the 
last two times Cogent was depeered, it responded by intentionally blocking 
connectivity to the network in question, despite the fact that both of 
those networks were Sprint customers and thus perfectly reachable under 
the Sprint transit Cogent gets from Verio. While no one has come forward 
to say if the Cogent/Verio agreement is structured for full transit or 
only Sprint/ATDN routes, Cogent has certainly set a precedent for 
intentionally disrupting connectivity in response to depeering, as a scare 
tactic to keep other networks from depeering them.

Without getting into the question of what is "right", it's perfectly
plausible that the Cogent-Verio interconnection is structured such
that Verio didn't send Cogent routes to FT via Sprint. Consider the
hypothetical case where Verio might peer with FT.

Joe


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