RE: Cogent packet loss to Verizon in San Jose

["Shaw, Matthew" <mshaw () fairpoint com>]

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 | mshaw () fairpoint com 

-----Original Message-----
From: Matthew Huff [mailto:mhuff () 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:robertg () 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 --- From: "Shaw, Matthew" <mshaw () fairpoint com>
Date: Fri, 8 Nov 2013 16:24:56 +0000

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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