[outages] Cogent packet loss and jitter

Brent Jones brent at brentrjones.com
Wed Oct 10 21:23:05 EDT 2012


I saw packet loss on Cogent today as well.
We have a Boston and NYC site, both saw high latency and some packet
loss to almost all destination (even to other Cogent on-net POPs)

It seems to have settled down, but I have not gotten a response to
support requests.

On Wed, Oct 10, 2012 at 6:16 PM, Carlos Alvarez <carlos at televolve.com> wrote:
> 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
>
>
>
> _______________________________________________
> Outages mailing list
> Outages at outages.org
> https://puck.nether.net/mailman/listinfo/outages
>



-- 
Brent Jones
brent at brentrjones.com


More information about the Outages mailing list