[167306] in North American Network Operators' Group
Re: Cogent & Level 3 routing issue?
daemon@ATHENA.MIT.EDU (Brandon Galbraith)
Sat Dec 7 20:17:24 2013
In-Reply-To: <4CC28F49-FB40-4945-8B30-9C7CBB9F0EA6@corp.crocker.com>
Date: Sat, 7 Dec 2013 19:17:07 -0600
From: Brandon Galbraith <brandon.galbraith@gmail.com>
To: Matthew Crocker <matthew@corp.crocker.com>
Cc: nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Possibly related to their mass outage last night around 5:12am CST
(ticket number HD0000005596458). We're connected at their 427 S La
Salle POP in Chicago.
brandon
On Sat, Dec 7, 2013 at 6:58 PM, Matthew Crocker
<matthew@corp.crocker.com> wrote:
>
> On Dec 7, 2013, at 3:40 PM, Jason Canady <jason@unlimitednet.us> wrote:
>
>> Unfortunately Cogent has a lot of peering issues. We use them in our ne=
twork blend and we have been having lots of problems with traffic outbound =
to Comcast. It looks like from South Bend, Indiana on Cogent to Chicago / =
Level 3 we are getting a very tiny amount of packet loss and a higher than =
'normal' latency of 35ms+.
>
> Yeah, I know they are always my secondary, never my primary
>>
>> Where are you connected to Cogent at? And what destination are you goin=
g to on Level 3?
>>
>
> Boston (300 Bent) but I think they haul it to 1 Summer St
>
> A bunch of sites fail but www.cnn.com is one that comes to mind.
>
>> Best Regards,
>>
>> --
>>
>> Jason Canady
>> Unlimited Net, LLC
>> Responsive, Reliable, Secure
>>
>> www.unlimitednet.us
>> jason@unlimitednet.us
>> twitter: @unlimitednet
>>
>> On 12/7/13 3:14 PM, Matthew Crocker wrote:
>>> Anyone seeing issues between Cogent & Level3 in NYC?
>>>
>>> I have Sprint & Cogent for bandwidth. Everything has been humming alo=
ng for a couple years just fine. Yesterday around 8:00AM my BGP session w=
ith Cogent flapped. Now, when my Cogent BGP is up I get 100% packet loss i=
n level3 land. When Cogent BGP is down (i.e. I=E2=80=99m running solely on=
Sprint) Everything is fine.
>>>
>>> I have an open ticket with Cogent. They say they have a =E2=80=98capac=
ity issue=E2=80=99 with level3 that has been escalated to executive levels.
>>>
>>> With Sprint & Cogent BGP UP
>>> I see traceroutes showing traffic leaving me on Sprint but returning o=
n Cogent (and failing at level3). I=E2=80=99m guessing it is the level3/co=
gent border
>>>
>>> With Sprint UP & Cogent Down
>>> I see trace routes showing traffic on to/from on Sprint just fine.
>>>
>>>
>>> Anyone else having issues?
>>>
>>> -Matt
>>>
>>> --
>>> Matthew S. Crocker
>>> President
>>> Crocker Communications, Inc.
>>> PO BOX 710
>>> Greenfield, MA 01302-0710
>>>
>>> E: matthew@crocker.com
>>> P: (413) 746-2760
>>> F: (413) 746-3704
>>> W: http://www.crocker.com
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
