Re: Cogent & Level 3 routing issue?

[Matthew Crocker <matthew () corp crocker com>]

Cogent found the problem today.  It took them 4 days to do a ‘show conf’ and see that an outbound access-list was 
applied to my interface by mistake during a ‘normal maintenance window at 8AM EST on Friday’

4 days of jumping through hoops to prove that the problem wasn’t on my network.   grumble.

-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



On Dec 7, 2013, at 7:58 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 network 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 going 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 along for a couple years just fine.   Yesterday 
> > > around 8:00AM my BGP session with Cogent flapped.  Now, when my Cogent BGP is up I get 100% packet loss in level3 
> > > land.  When Cogent BGP is down (i.e. I’m running solely on Sprint)  Everything is fine.
> > >
> > > I have an open ticket with Cogent.  They say they have a ‘capacity issue’ 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 on Cogent (and failing at level3).  I’m 
> > > guessing it is the level3/cogent 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