[outages] Cogent packet loss and jitter

Carlos Alvarez carlos at televolve.com
Wed Oct 10 21:16:28 EDT 2012


Unfortunately one of our critical destinations is now advertising a route
through Cogent, and they are having some problems it seems.  Anyone else?

--- 66.62.162.31 ping statistics ---
62 packets transmitted, 40 received, 35% packet loss, time 61016ms
rtt min/avg/max/mdev = 53.803/57.115/62.127/1.730 ms

This is at the same time that latency to the last router before cogent is
perfect (1.7-1.9ms).

Relevant route:

 3  204.15.220.81 (204.15.220.81)  1.268 ms  1.303 ms  1.289 ms
 4  gi3-12.na41.b022559-0.phx02.atlas.cogentco.com (38.122.88.13)  1.497 ms
 1.881 ms  1.889 ms
 5  vl3810.mag02.phx02.atlas.cogentco.com (66.28.64.209)  12.983 ms  12.979
ms  12.964 ms
 6  * te7-4.ccr01.phx02.atlas.cogentco.com (154.54.85.85)  195.832 ms *
 7  te0-1-0-7.ccr22.lax01.atlas.cogentco.com (154.54.80.205)  13.472 ms
te0-3-0-0.mpd22.lax01.atlas.cogentco.com (154.54.29.25)  12.875 ms
te0-1-0-7.ccr22.lax01.atlas.cogentco.com (154.54.80.205)  13.028 ms
 8  te3-4.ccr02.lax05.atlas.cogentco.com (154.54.3.10)  151.705 ms
te9-8.ccr02.lax05.atlas.cogentco.com (154.54.44.134)  151.715 ms
te4-8.ccr02.lax05.atlas.cogentco.com (154.54.30.194)  151.691 ms
 9  xe-1-2-1.mpr1.lax12.us.above.net (64.125.13.169)  23.115 ms  23.105 ms
 23.090 ms
10  xe-3-0-0.cr1.lax112.us.above.net (64.125.30.17)  13.148 ms  13.090 ms
 13.117 ms
11  xe-0-2-0.cr1.sjc2.us.above.net (64.125.26.26)  21.132 ms  21.585 ms
 20.958 ms
12  xe-1-0-1.mpr1.den1.us.above.net (64.125.30.133)  50.248 ms  50.045 ms
 50.001 ms
13   (208.185.20.58)  50.859 ms  55.178 ms  55.035 ms


-- 
Carlos Alvarez
TelEvolve
602-889-3003
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