Complete traceroute for the interested... (FWIW, 205.232.34.1 is the DNS for a small ISP in central NY.) At this point, I cannot determine whether they have dropped off the map or whether Cogent is just mis-routing traffic...I don't have another host on the other side of Cogent's cloud to trace to. $ traceroute 205.232.34.1 traceroute to 205.232.34.1 (205.232.34.1), 64 hops max, 40 byte packets 1 192.168.1.1 (192.168.1.1) 1.205 ms 0.899 ms 0.744 ms 2 10.101.32.1 (10.101.32.1) 9.872 ms 12.886 ms 8.218 ms 3 gig0-0.syrcnypth-rtr01.nyroc.rr.com (24.92.227.102) 8.842 ms 7.082 ms 7.968 ms 4 gig6-3.syrcnypth-rtr02.nyroc.rr.com (24.92.230.74) 8.523 ms 8.358 ms 22.373 ms 5 gig1-0-7.syrcnyflk-rtr02.nyroc.rr.com (24.92.227.42) 12.746 ms 12.645 ms 13.085 ms 6 * ge-4-3-0.albynywav-rtr03.nyroc.rr.com (24.24.7.53) 22.296 ms 23.362 ms 7 ae-5-0.cr0.nyc30.tbone.rr.com (66.109.6.74) 24.973 ms 25.460 ms 25.236 ms 8 ae-1-0.pr0.nyc20.tbone.rr.com (66.109.6.163) 26.920 ms 27.645 ms 28.417 ms 9 te2-1.mpd01.jfk05.atlas.cogentco.com (154.54.13.185) 27.786 ms 28.297 ms 28.696 ms 10 vl3496.mpd03.jfk02.atlas.cogentco.com (154.54.6.49) 28.706 ms vl3491.ccr04.jfk02.atlas.cogentco.com (154.54.7.9) 29.195 ms vl3496.mpd03.jfk02.atlas.cogentco.com (154.54.6.49) 30.475 ms 11 te4-1.ccr01.jfk07.atlas.cogentco.com (154.54.7.30) 28.199 ms 27.434 ms 28.647 ms 12 paetec_communications_inc.dmarc.cogentco.com (38.112.26.90) 29.272 ms 30.293 ms 28.723 ms 13 gi-1-0-1-13.core01.nycmny01.paetec.net (66.155.218.97) 28.767 ms 30.290 ms 29.108 ms 14 64.80.253.234 (64.80.253.234) 27.571 ms 29.827 ms 28.415 ms 15 ge-1-3-0.core02.nycmny03.paetec.net (64.80.253.98) 29.724 ms 27.800 ms 28.632 ms 16 as1.core02.asbnva01.paetec.net (169.130.81.230) 37.043 ms 44.398 ms 86.877 ms 17 so-0-1-0.core01.asbnva01.paetec.net (169.130.81.85) 36.541 ms 36.753 ms 35.901 ms 18 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 33.438 ms 34.282 ms 33.746 ms 19 uslec.iad01.atlas.cogentco.com (154.54.11.214) 36.553 ms 35.728 ms 38.174 ms 20 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 35.176 ms 33.785 ms 33.844 ms 21 uslec.iad01.atlas.cogentco.com (154.54.11.214) 102.015 ms 37.123 ms 37.943 ms 22 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 34.138 ms 34.589 ms 34.388 ms 23 * uslec.iad01.atlas.cogentco.com (154.54.11.214) 36.982 ms 37.857 ms 24 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 36.449 ms 35.107 ms 34.794 ms 25 uslec.iad01.atlas.cogentco.com (154.54.11.214) 37.972 ms 36.947 ms 38.100 ms 26 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 33.736 ms 33.483 ms * 27 * uslec.iad01.atlas.cogentco.com (154.54.11.214) 36.605 ms 37.762 ms 28 gi9-16.mpd01.iad01.atlas.cogentco.com (154.54.11.213) 37.073 ms 34.558 ms 36.043 ms 29 *^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@clarkson.edu CONFIDENTIALITY: This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. -----Original Message----- From: outages-bounces@isotf.org on behalf of Darrell Hyde Sent: Mon 6/23/2008 9:47 PM To: outages@isotf.org Subject: Re: [outages] routing loop in cogent? Are you able to share what IP you're tracing to? ________________________________________ From: outages-bounces@isotf.org [outages-bounces@isotf.org] On Behalf Of Josh Fiske [jfiske@clarkson.edu] Sent: Monday, June 23, 2008 9:39 PM To: outages@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@clarkson.edu CONFIDENTIALITY: This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. _______________________________________________ outages mailing list outages@isotf.org https://puck.nether.net/mailman/listinfo/outages