packet loss out of Texas on Cogent and GlobalCrossing

[charlesg at unixrealm.com (Charles Gagnon)]

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 at 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 at unixrealm.com]
> Sent: Monday, November 14, 2011 2:11 PM
> To: nanog at 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