[outages] Comcast packetloss/latency Chicago Il

Nate Burke nate at blastcomm.com
Mon Dec 19 13:47:25 EST 2011


I had my provider (Internap) test from their 111 N. Canal facility in 
Chicago, and latency did not exist from that NAP, only at 350 Ceramc, on 
all upstreams that Internap connects to at 350 Cermac.  Looks like it 
might be a busy router at 350 Cermac on Comcast.

Nate

On 12/19/2011 12:28 PM, Bill McGonigle wrote:
> On Mon, Dec 19, 2011 at 1:15 PM, Nate Burke<nate at blastcomm.com>  wrote:
>> Started seeing High Latency and Packetloss on a Comcast Business Circuit in
>> the far Western Chicago Suburbs.  Started around 11:50am CST.  Looks like it
>> might be at a cross connect between ATT and Comcast downtown Chicago.
> I'm seeing this here in Lebanon NH, affecting cross-town traffic
> between Fairpoint and Comcast:
>
> traceroute to 173.9.115.9 (173.9.115.9), 30 hops max, 60 byte packets
>   1  64.222.216.1 (64.222.216.1)  20.381 ms  21.252 ms  22.527 ms
>   2  pool-64-222-213-23.port.east.myfairpoint.net (64.222.213.23)
> 24.186 ms  25.071 ms  26.528 ms
>   3  xe-0-2-0.mpr4.bos2.us.above.net (64.124.202.29)  31.227 ms  32.431
> ms  33.667 ms
>   4  xe-0-0-0.mpr3.bos2.us.above.net (64.125.25.61)  35.177 ms  36.522
> ms  37.866 ms
>   5  xe-5-3-0.cr1.lga5.us.above.net (64.125.24.110)  45.022 ms  46.045
> ms  46.985 ms
>   6  xe-0-0-0.cr2.lga5.us.above.net (64.125.29.42)  48.062 ms  29.675
> ms  29.242 ms
>   7  xe-0-2-1.er2.lga5.us.above.net (64.125.30.210)  29.931 ms  30.970
> ms  32.314 ms
>   8  above-comcast.lga5.us.above.net (64.125.12.210)  35.957 ms  36.227
> ms  37.505 ms
>   9  pos-1-5-0-0-cr01.newyork.ny.ibone.comcast.net (68.86.85.17)
> 39.783 ms  43.557 ms  43.231 ms
> 10  pos-0-6-0-0-cr01.350ecermak.il.ibone.comcast.net (68.86.88.154)
> 62.634 ms  66.689 ms  66.438 ms
> 11  pos-1-6-0-0-cr01.chicago.il.ibone.comcast.net (68.86.88.41)
> 66.540 ms  67.105 ms  53.298 ms
> 12  * * *
> ...
>
> My pager didn't ring until 12:06, and my logs are on the other side of
> the problem, but wow, I'm still seeing this now, going on 40 minutes
> by your time schedule.
>
> -Bill



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