nanog mailing list archives
Re: packet loss out of Texas on Cogent and GlobalCrossing
From: Charles Gagnon <charlesg () unixrealm com>
Date: Mon, 14 Nov 2011 15:52:27 -0500
Good point, I can't seem to reproduce with the looking glass interfaces out there. They either don't use enough packets in sequence or don't through the problem hops. On this path: Send ICMP echos to 24.227.216.194, timeout is 2 seconds, maximum hops are 32,1 0ms 1ms 0ms 74.201.153.2212 143ms 10ms 0ms 216.52.95.893 1ms 1ms 1ms 77.67.70.974 1ms 1ms 1ms 213.200.66.2105 3ms 1ms 2ms 66.198.111.976 19ms 7ms 7ms 216.6.87.97 7ms 7ms 7ms 216.6.87.28 6ms 7ms 7ms 66.198.154.149 6ms 7ms 6ms 107.14.19.13210 107ms 108ms 113ms 66.109.10.1111 118ms 144ms 120ms 107.14.17.13912 119ms 120ms 120ms 72.179.205.5913 115ms 115ms 114ms 24.73.240.19514 115ms 115ms 115ms 24.73.240.252 I re-tested and using 100 msg counts, I get 3-6% packet loss on anything after 10. On hops 1-10, I'm all clean. That 66.109.10.11 address is inside TimeWarner/RR so I'll keep trying to contact them. On Mon, Nov 14, 2011 at 2:23 PM, Eric Tykwinski <eric-list () truenet com> wrote:
Have you check the relevant looking glass sites? http://www.cogentco.com/en/network/looking-glass http://www.globalcrossing.com/network/network_looking_glass.aspx We are connected to both providers, so everything is looking clean for us. Sincerely, Eric Tykwinski TrueNet, Inc. P: 610-429-8300 F: 610-429-3222 -----Original Message----- From: Charles Gagnon [mailto:charlesg () unixrealm com] Sent: Monday, November 14, 2011 2:11 PM To: nanog () nanog org Subject: packet loss out of Texas on Cogent and GlobalCrossing I need the Nanog intellect, We are seeing packet loss in certain scenarios only on traffic to and from Austin, TX. The local provider is Time Warner and they are not having (obvious) problems. We ran tests from NY and NJ over Internap and AboveNet connections.We only see problems when the traffic goes over gblx or cogent. Has anyone heard of problem with these carriers out of Texas? -- Charles Gagnon charlesg at unixrealm.com
-- Charles Gagnon charlesg at unixrealm.com
Current thread:
- packet loss out of Texas on Cogent and GlobalCrossing Charles Gagnon (Nov 14)
- Message not available
- Re: packet loss out of Texas on Cogent and GlobalCrossing Charles Gagnon (Nov 14)
- Re: packet loss out of Texas on Cogent and GlobalCrossing McDonald Richards (Nov 14)
- Re: packet loss out of Texas on Cogent and GlobalCrossing Charles Gagnon (Nov 14)
- Message not available