At 03:54 PM 8/20/2007, Dan Armstrong wrote:
We're going crazy up here, I'm trying to nail down where exactly the problem is - We don't use Cogent anywhere, but we're having terrible problems with Bell and many sites in Europe...
Bell uses Cogent in a large way. The second traceroute was from an IP in their AS (577) out. I am prepending out Cogent, but Bell does everything it can not to use Teleglobe so I am having problems influencing their routes to come back that way. They also have a very odd path out of Chicago. This is from a site in Toronto (source IP in AS577) back to me peering with Cogent's router in Toronto... Toronto, Chicago, Kansas, Texas, Washington, Boston, Albany, Toronto. Thats quite the milk run. Usually its Toronto, Chicago, Toronto. % traceroute -f 6 -q1 199.212.134.3 traceroute to 199.212.134.3 (199.212.134.3), 64 hops max, 40 byte packets 6 64.230.229.5 (64.230.229.5) 4.846 ms 7 64.230.242.97 (64.230.242.97) 4.030 ms 8 64.230.147.14 (64.230.147.14) 14.213 ms 9 206.108.103.142 (206.108.103.142) 14.216 ms 10 p13-0.core01.ord01.atlas.cogentco.com (154.54.11.29) 101.348 ms 11 te3-1.mpd01.ord01.atlas.cogentco.com (154.54.1.206) 102.507 ms 12 t2-4.mpd01.mci01.atlas.cogentco.com (154.54.2.233) 108.993 ms 13 t4-2.mpd01.iah01.atlas.cogentco.com (154.54.5.221) 108.496 ms 14 t2-2.mpd01.dca01.atlas.cogentco.com (154.54.2.145) 110.221 ms 15 t8-2.mpd01.bos01.atlas.cogentco.com (154.54.1.105) 129.529 ms 16 g2-0-0.core01.bos01.atlas.cogentco.com (154.54.2.213) 108.507 ms 17 p13-0.core01.alb02.atlas.cogentco.com (154.54.7.41) 116.526 ms 18 p14-0.core01.yyz01.atlas.cogentco.com (66.28.4.218) 118.463 ms 19 v3491.mpd01.yyz01.atlas.cogentco.com (154.54.5.78) 217.912 ms 20 v3492.mpd01.yyz02.atlas.cogentco.com (154.54.5.82) 225.491 ms 21 sentex.demarc.cogentco.com (38.104.158.78) 217.134 ms 22 i3-vl-814 (67.43.129.242) 65.576 ms 23 shell1 (199.212.134.3) 66.221 ms ---Mike
Mike Tancsa wrote:
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