[outages] routing loop in cogent?

[Darrell Hyde]

Are you able to share what IP you're tracing to?
________________________________________
From: outages-bounces at isotf.org [outages-bounces at isotf.org] On Behalf Of Josh Fiske [jfiske at clarkson.edu]
Sent: Monday, June 23, 2008 9:39 PM
To: outages at isotf.org
Subject: [outages] routing loop in cogent?

Is anyone else seeing some routing loops in Cogent's network?

ala:

...
18  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  34.475 ms  36.336 ms  34.087 ms
19  uslec.iad01.atlas.cogentco.com (154.54.11.214)  39.286 ms  38.188 ms  37.530 ms
20  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  33.148 ms  37.066 ms  35.823 ms
21  * uslec.iad01.atlas.cogentco.com (154.54.11.214)  38.403 ms  37.534 ms
22  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  35.051 ms  33.120 ms  34.209 ms
23  uslec.iad01.atlas.cogentco.com (154.54.11.214)  39.112 ms * *
24  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  34.603 ms  34.994 ms  34.119 ms
25  * uslec.iad01.atlas.cogentco.com (154.54.11.214)  36.929 ms  38.443 ms
26  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  34.784 ms  35.317 ms  33.839 ms
27  uslec.iad01.atlas.cogentco.com (154.54.11.214)  37.185 ms  38.327 ms  39.863 ms
28  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  35.362 ms  36.451 ms  34.788 ms
29  uslec.iad01.atlas.cogentco.com (154.54.11.214)  38.600 ms  39.782 ms  40.031 ms
30  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  38.156 ms  39.726 ms  35.726 ms
31  uslec.iad01.atlas.cogentco.com (154.54.11.214)  47.281 ms  37.617 ms  49.460 ms
32  gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213)  35.389 ms  35.988 ms  35.609 ms
33  uslec.iad01.atlas.cogentco.com (154.54.11.214)  39.162 ms  121.744 ms^C


- - - -
Joshua Fiske '03, '04
Network and Security Engineer
Clarkson University, Office of Information Technology
(315) 268-6722 -- Fax:  (315) 268-6570
GPG Key:  http://clarkson.edu/~jfiske/jfiske_pub.asc
jfiske at clarkson.edu

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