Cogent's having peering problems with AOL again
Cogent's again seeing congestion at their hand-off to ATDN.net. Traceroutes to their mailservers show packet loss and mail into AOL is dying a few packets into the conversation. Cogent says they're waiting on a call back from AOL, no ETR provided. Carl Hirsch
Cogent peering issues with Sprint
Cogent is experiencing two problems right now. Their automated message reports that they have a backbone problem causing latency, but they also seem to be experiencing peering problems with Sprint. Output over Cogent: sarglund-cogenttraceroute www.duke-energy.com Translating www.duke-energy.com...domain server (66.28.0.45) [OK] Type escape sequence to abort. Tracing the route to www.duke-energy.com (192.234.122.137) 1 g0-2.na01.b000629-0.ord01.atlas.cogentco.com (38.112.0.193) [AS 174] 0 msec 0 msec 0 msec 2 g1-0.core01.ord01.atlas.cogentco.com (66.28.6.73) [AS 174] 0 msec 0 msec 0 msec 3 t4-1.mpd01.ord01.atlas.cogentco.com (154.54.1.98) [AS 174] 4 msec 0 msec 0 msec 4 v3488.mpd01.ord03.atlas.cogentco.com (154.54.5.26) [AS 174] 0 msec 0 msec 0msec 5 g6-0-0-3492.core01.ord03.atlas.cogentco.com (154.54.3.241) [AS 174] 0 msec 0 msec 0 msec 6 sprint.ord03.atlas.cogentco.com (154.54.13.46) [AS 174] 0 msec 4 msec 0 msec 7 sl-bb20-chi-4-0.sprintlink.net (144.232.8.218) [AS 174] 0 msec 0 msec 0 msec 8 sl-bb21-chi-15-0.sprintlink.net (144.232.26.2) [AS 174] 4 msec 4 msec 0 msec 9 sl-bb25-chi-13-0.sprintlink.net (144.232.26.90) [AS 174] 0 msec 0 msec 0 msec 10 * * * 11 * * * 12 * * * 13 * * * 14 * * sarglund-cogent vs. Output over Verizon: sarglund-gwtraceroute www.duke-energy.com Translating www.duke-energy.com...domain server (198.6.1.2) [OK] Type escape sequence to abort. Tracing the route to www.duke-energy.com (192.234.122.137) 1 500.Serial4-10.GW1.CHI2.ALTER.NET (157.130.165.213) [AS 701] 8 msec 0 msec 4msec 2 0.so-0-0-0.XT1.CHI2.ALTER.NET (152.63.64.130) [AS 701] 4 msec 0 msec 0 msec 3 0.so-7-0-0.XL1.CHI13.ALTER.NET (152.63.64.206) [AS 701] 4 msec 16 msec 4 msec 4 0.so-6-0-0.BR2.CHI13.ALTER.NET (152.63.73.25) [AS 701] 4 msec 0 msec 44 msec 5 sl-st21-chi-3-0-0.sprintlink.net (144.232.18.141) [AS 701] 32 msec 12 msec 12 msec 6 sl-crs2-chi-0-1-0-0.sprintlink.net (144.232.18.154) [AS 701] 8 msec 16 msec 20 msec 7 sl-bb25-chi-8-0.sprintlink.net (144.232.26.113) [AS 701] 12 msec 28 msec 12 msec 8 sl-bb26-rly-10-0.sprintlink.net (144.232.20.88) [AS 701] 116 msec 216 msec * 9 sl-bb21-dc-12-0-0.sprintlink.net (144.232.9.212) [AS 701] 24 msec 32 msec 36 msec 10 sl-gw21-dc-15-0.sprintlink.net (144.232.15.9) [AS 701] 32 msec 28 msec 24 msec 11 sl-dukenergy-57200-0.sprintlink.net (144.228.23.170) [AS 701] 40 msec 36 msec 40 msec sarglund-gw enjoy, -carl
Re: Cogent peering issues with Sprint
Yes, it looks like this might have been resolved. Duke Energy, Teco Energy, Accenture, and the Washington Post are all now accessible via Cogent. -carl Basil Kruglov [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 10/10/2007 10:17 AM Please respond to nanog@merit.edu To nanog@merit.edu cc Subject Re: Cogent peering issues with Sprint On Wed, Oct 10, 2007 at 11:00:13AM -0400, Marshall Eubanks wrote: Are you sure that this is not in Sprint, or even Duke Energy ? I can't ping to 192.234.122.137 from either home or work, and I don't see any signs of Cogent problems from Tyco Road / Tysons Corner. It would seem that this issue with Sprint's been resolved. -Basil @ CIFNet
Re: Cogent issues in SF area?
We're seeing very poor performance on Cogent in Chicago to major sites such as CNN and Salon. Traceroutes indicate packets dropping inside Cogent's network and at their handoff to at atdn.net. Opened a ticket with Cogent around 10am Central, haven't heard from anybody since. Not necessarily related to your problem, but maybe another data point. Carl Hirsch Mike Lyon [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 09/28/2007 01:39 PM To NANOG nanog@merit.edu cc Subject Cogent issues in SF area? Anyone else seeing it? BGP_Level3traceroute 208.70.27.35 Type escape sequence to abort. Tracing the route to 208.70.27.35 1 4.79.220.77 0 msec 4 msec 0 msec 2 4.68.123.30 [AS 3356] 8 msec 0 msec 4 msec 3 4.68.18.5 [AS 3356] 0 msec 4 msec 0 msec 4 4.68.110.138 [AS 3356] 4 msec 0 msec 4 msec 5 154.54.6.81 [AS 174] 4 msec * 0 msec 6 154.54.6.133 [AS 174] 4 msec 4 msec 4 msec 7 154.54.24.38 [AS 174] 4 msec 4 msec 4 msec 8 * * * 9 * * * Bah! -Mike
Re: Standalone Stratum 1 NTP Server
If GPS visibility is not an option (GPS can be very finicky about being able to see an open percentage of the sky), then CDMA signals are also an option in the states. Handy if the installation is going to be in a highrise. Prices seem to vary greatly between manufacturers, I've gotten quotes on both of these in the past but I'm not finding the post-it I'd written that info upon. http://www.endruntechnologies.com/ntp-server.htm http://www.datum.com/tt/pages/tymserve/2100.html HTH, -carl Mike Lyon mlyon@fitzharri To: Mike Leber [EMAIL PROTECTED] s.com cc: [EMAIL PROTECTED] Sent by: Subject: Re: Standalone Stratum 1 NTP Server owner-nanog@meri t.edu 08/27/02 02:43 AM http://www.truetime.com/index.html Not exactly stand alone because you have to place the antenna somwhere where it can see the GPS satellites as is the case with any any Stratum 1 NTP device. Then you have to program the IP into it and plug the ethernet into it. They are really simple to install and configure. They give you a certain amount of Coax (you can order more if need be) and you put the antenna on the roof and run it down to the receiver. Quite simple. They have a couple different models to choose from. -Mike On Mon, 26 Aug 2002, Mike Leber wrote: I was wondering if anybody has any suggestions for a low priced, off the shelf, complete (includes any necessary receivers), standalone (as in you just plug it in and connect ethernet), stratum 1 NTP server? Please also mention where to buy it. Mike. +- H U R R I C A N E - E L E C T R I C -+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | [EMAIL PROTECTED] http://www.he.net | +---+
RE: Yipes
How's Cogent looking these days? They, along with Yipes, were always trying to get meetings with me. -carl Daniel Golding To: 'Allan Liska' [EMAIL PROTECTED], [EMAIL PROTECTED] dgolding@soccc: keye.comSubject: RE: Yipes Sent by: owner-nanog@m erit.edu 03/24/02 11:02 PM They aren't the only ones http://www.washtech.com/news/telecom/15783-1.html Aleron, new owner of Telia USA aka AGIS, has also filed for Chapter 11. - Daniel Golding -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Allan Liska Sent: Saturday, March 23, 2002 2:12 PM To: [EMAIL PROTECTED] Subject: Yipes Hello, Almost a year ago Ralph Los asked the following: 2. They're not funded yet, and selling WAY below cost. Does this mean that a year from now they're going to triple their prices? worse? Yesterday they declared bankruptcy: http://www.sfgate.com/cgi-bin/article.cgi?file=/chronicle/archive/2002/0 3/23/BU240955.DTLtype=business Ralph -- if you are still around, I hear Miss Cleo is hiring :). allan -- allan [EMAIL PROTECTED] http://www.allan.org
