Cogent latency / congestion

Date: Mon, 20 Aug 2007 15:21:38 -0400
From: Mike Tancsa <mike@sentex.net>
Sender: owner-nanog@merit.edu

Does anyone have any details about the Cogent outage that started
this morning (9am GMT-400) and is still continuing ? If its a fibre
cut between Montville (NJ?) and Cleveland OH
(http://status.cogentco.com/) why is it so bad in Chicago and Albany
locations ? Is there really that little excess capacity ?

My connection out of Toronto is pretty bad via Albany

  3 g8-22.mpd01.yyz02.atlas.cogentco.com (38.104.158.77) 7.470
ms 6.754 ms 6.481 ms
  4 v3493.mpd01.yyz01.atlas.cogentco.com (154.54.5.85) 6.981
ms 6.730 ms 6.984 ms
  5 g2-0-0-3490.core01.yyz01.atlas.cogentco.com (154.54.5.73) 6.482
ms 7.175 ms 5.974 ms
  6 p4-0.core01.alb02.atlas.cogentco.com (66.28.4.217) 105.954
ms 112.055 ms 111.426 ms
  7 p6-0.core01.bos01.atlas.cogentco.com (154.54.7.42) 115.413
ms 117.090 ms 113.816 ms

and Bell's through Chicago is even worse

6 64.230.229.5 (64.230.229.5) 12.572 ms 36.983 ms 200.187 ms
  7 64.230.242.97 (64.230.242.97) 4.685 ms 5.439 ms 3.645 ms
  8 64.230.147.14 (64.230.147.14) 14.351 ms 15.344 ms 14.387 ms
  9 206.108.103.142 (206.108.103.142) 14.374 ms 14.280 ms 14.255 ms
10 p13-0.core01.ord01.atlas.cogentco.com (154.54.11.29) 156.616 ms
* 142.150 ms
11 te3-1.mpd01.ord01.atlas.cogentco.com (154.54.1.206) 135.199
ms 138.900 ms *
12 t2-4.mpd01.mci01.atlas.cogentco.com (154.54.2.233) 152.292
ms 149.956 ms 148.095 ms
13 t4-2.mpd01.iah01.atlas.cogentco.com (154.54.5.221) 149.047
ms 150.556 ms 151.232 ms

         ---Mike

--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike

There is a fiber cut (occurred at about 2:11 UTC) in Ohio. I'm not sure if
that has anything to do with this problem. It is impacting some
traffic between Chicago and New York, though.