[Dshield] Cogent / Level 3

John Hardin jhardin at crsretail.com
Fri Oct 7 19:08:47 GMT 2005

Brian Dessent said:
> John Hardin wrote:
>> >From the discussion I've seen (i.e. L3 and Cogent customers *cannot
>> communicate at all*) it sounds like L3 is dropping traffic from Cogent's
>> netblocks at their boundaries.
> No, they're not dropping or blocking the traffic.  There is simply no
> route from A to B.


> So herein lies the problem.  Level3 determined that for whatever reason
> its peering arrangement with Cogent was no longer mutually beneficial
> and terminated the link.  Because neither organization buys full
> transit, there is no route between them.

That makes it clear, thanks.

John Hardin
Development and Technology group (Seattle)
CRS Retail Systems, Inc.
3400 188th Street SW, Suite 185
Lynnwood, WA 98037
voice: (425) 672-1304
  fax: (425) 672-0192
email: jhardin at crsretail.com
  web: http://www.crsretail.com
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