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Re: Cogent peering issues with Sprint

  • From: Basil Kruglov
  • Date: Wed Oct 10 10:59:45 2007

On Wed, Oct 10, 2007 at 09:38:42AM -0500, [email protected] wrote:
> 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. 
> 
>   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  *  *

We're actually seeing the same isses @ NTT/AS2914 peering with
Sprint/AS1239:

traceroute to www.sprint.net (199.0.234.48), 64 hops max, 40 byte packets
 1  10.30.1.1 (10.30.1.1)  0.504 ms  0.221 ms  0.234 ms
 2  ge-2-2-0.r00.chcgil08.us.bb.gin.ntt.net (129.250.208.1)  0.298 ms  0.290
ms  0.284 ms
 3  p16-0-2-3.r21.chcgil09.us.bb.gin.ntt.net (129.250.3.17)  0.469 ms  0.474
ms  0.452 ms
 4  ae-0.r20.chcgil09.us.bb.gin.ntt.net (129.250.3.97)  0.423 ms  0.421 ms
0.418 ms
 5  sl-st21-chi-14-1-1.sprintlink.net (144.232.8.221)  0.408 ms  0.439 ms
0.414 ms
 6  sl-crs2-chi-0-0-0-3.sprintlink.net (144.232.26.9)  1.661 ms  1.521 ms
1.407 ms
 7  sl-bb25-chi-8-0.sprintlink.net (144.232.26.113)  1.264 ms  1.212 ms
1.075 ms
 8  * * *
^C


-Basil @ CIFNet