Issues in NYC today too. We confirmed traffic coming in from VZW as well as 
Comcast through Cogent to us both seeing drops at that same point.

Matthew Shaw - Sr. Network Administrator 
FairPoint Communications | ms...@fairpoint.com 

-----Original Message-----
From: Matthew Huff [mailto:mh...@ox.com] 
Sent: Friday, November 08, 2013 12:49 PM
To: Robert Glover; NANOG Mailing List
Subject: RE: Cogent packet loss to Verizon in San Jose

This has been going on nationwide between Cogent and other peering partners 
since early 2013 (and in some cases before), but especially between Cogent and 
Verizon. It's not a technical problem, but a political one. 

We resolved our issue by working with our upsteam providers to reconfigure our 
routing and advertisements to avoid cogent, otherwise, I don't think there is 
any solution coming within a reasonable timeframe


----
Matthew Huff             | 1 Manhattanville Rd
Director of Operations   | Purchase, NY 10577
OTA Management LLC       | Phone: 914-460-4039

> -----Original Message-----
> From: Robert Glover [mailto:robe...@garlic.com]
> Sent: Friday, November 08, 2013 12:30 PM
> To: NANOG Mailing List
> Subject: Cogent packet loss to Verizon in San Jose
> 
> Anyone from Cogent around?  Normal support channels aren't getting me 
> anywhere.
> 
> We have been seeing consistent packet loss to Verizon over Cogent in 
> San Jose for several days:
> 
> HOST: noc-auth1.garlic.com                           Loss%   Snt
> Last   Avg  Best  Wrst StDev
>   1. router.garlic.com                               0.0%    10    0.4
> 0.3   0.2   0.4   0.0
>   2. vl203.mag03.sfo01.atlas.cogentco.com            0.0%    10    2.2
> 2.3   2.1   2.4   0.1
>   3. te0-2-0-1.mpd21.sfo01.atlas.cogentco.com        0.0%    10    2.6
> 2.6   2.4   2.8   0.1
>   4. be2166.ccr21.sjc01.atlas.cogentco.com           0.0%    10    3.9
> 3.9   3.7   4.2   0.1
>   5. be2000.ccr21.sjc03.atlas.cogentco.com           0.0%    10    4.7
> 4.4   4.3   4.7   0.1
>   6. verizon.sjc03.atlas.cogentco.com               40.0%    10   80.0
> 80.8  79.9  81.8   0.7
>   7. so-1-0-0-0.SJC01-CORE-RTR1.verizon-gni.net      30.0%    10   82.2
> 87.9  81.1 114.6  11.3
>   8. A8-0-1710.SNFCCA-DSL-01.verizon-gni.net        30.0%    10   83.2
> 83.8  82.1  85.9   1.3
>   9. static-71-116-125-210.snfcca.dsl-w.verizon.net 20.0%    10  108.1
> 107.2 105.7 108.7   1.1
> 
> 
> We have had to route some customer's traffic out through our alternate 
> provider (AS20115), as their VPN's were borked by the packet loss.
> 
> Thanks,
> -Bobby



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--- Begin Message ---
Multiple source  / destination pairs through cogent show 40% or more packetloss 
at be2063.mpd22.jfk02.atlas.cogentco.com starting at 12:30am EST. We’ve 
shutdown our peering to them until they’ve had a chance to address the issue.


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