Cogent <-> Verizon peering congestion

Wed Feb 5 00:40:09 UTC 2014

I've seen some Cogent-Sprint congestion today also.  About 10% PL at the 
link.

On 2/4/2014 6:29 PM, Edward Roels wrote:
> I also see major congestion from Cogent to VZ.  Amongst other major
> networks.
>
>
> http://i.imgur.com/1z2ZGOr.png
>
>
>
> On Tue, Feb 4, 2014 at 6:44 PM, Robert Glover <robertg at garlic.com> wrote:
>
>> Hello,
>>
>> For the last several months, we have been tracking a congestion issue
>> between Cogent <-> Verizon
>>
>>   Host Loss%   Snt   Last   Avg  Best  Wrst StDev
>>   1. router.garlic.com 0.0%    29    0.3   6.1   0.2 160.6  29.7
>>   2. vl203.mag03.sfo01.atlas.cogentco.com 0.0%    29    2.2   8.1   2.1
>> 161.1  29.5
>>   3. te0-0-0-14.ccr22.sfo01.atlas.cogentco.com 0.0%    29    2.9   2.7
>> 2.4   3.6   0.2
>>   4. be2165.ccr22.sjc01.atlas.cogentco.com 0.0%    29    4.1   4.0   3.7
>> 4.8   0.2
>>   5. be2047.ccr21.sjc03.atlas.cogentco.com 0.0%    29    4.5   4.7   4.3
>> 5.5   0.3
>>   6. verizon.sjc03.atlas.cogentco.com 22.2%    28  169.3 171.5 168.1 193.5
>>    6.9
>>   7. so-1-0-0-0.SJC01-CORE-RTR2.verizon-gni.net 37.0%    28  205.8 180.6
>> 171.6 271.6  24.8
>>   8. A12-0-135.SNFCCA-DSL-01.verizon-gni.net 33.3%    28  172.3 177.5
>> 171.7 250.8  18.3
>>   9. pool-71-116-122-235.snfcca.btas.verizon.net 25.0%    28  197.9 197.6
>> 195.5 199.2   0.8
>>
>> We have smokeping's from our side showing 30%+ packet loss from us
>> (AS4307) to Verizon.
>>
>> All I have gotten from Cogent is a canned response:
>>
>> ---
>> The latency and/or packet loss that you are experiencing to this
>> destination is due to occasional high traffic with Verizon. We have
>> repeatedly requested augments to these congestion points and hope Verizon
>> will comply soon.  While this has been escalated internally to the CEO
>> level, we encourage you to also contact Verizon customer support with your
>> concerns and complaints.  Their delay is a major impediment to internet
>> traffic overall and contrary to net neutrality requirements.  Our peering
>> engineers will continue to address this on a daily basis until resolved.
>> ---
>>
>> It seems to have gotten a lot worse in recent days, to the point where we
>> have customers who are trying to access us from Verizon's network (i.e.
>> they have Verizon DSL, or via Verizon 3G/4GLTE) complaining they are having
>> a very hard to checking their email, etc.
>>
>> Has anyone else been experiencing these issues?  Or does anyone have more
>> information that what Cogent provided me in their canned statement?
>>
>> -Bobby
>>
>>