This is exactly what I thought had happened....The outage that affected you was one our two routers up-stream from your connection to that provider. I am not trying to defend any Carrier, but there is no 'routing protocol' what will react to this kind of an issue..... Regards. Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: Support@Snappytelecom.net ----- Original Message -----
From: "Vlade Ristevski" <vristevs@ramapo.edu> Cc: "nanog list" <nanog@nanog.org> Sent: Friday, February 7, 2014 3:57:00 PM Subject: Re: carrier comparison
We don't get a default route from them. At the time of the outage my bgp session was up and I had a full routing table from them. I didn't have much time to troubleshoot it in that state since we were down so I had to disable the session ASAP. Once the RFO comes in, I'll be asking a lot more questions about it. My only experience with BGP is as a customer so I'm not too familiar with the intricacies on the provider side. We had an outage in the AM the same day and we failed over just fine. I'm very curious why the same didn't happen in the evening.
On 2/7/2014 3:03 PM, Bryan Socha wrote:
Did you verify your problem was announcements on the other side of the outage? This sounds to me like you are using a bgp announced default route from cogent which is always sent. I think the problem was you were sending traffic out a path that was broken. Since you mentioned your outbound balancing this would explain some packet loss and not 100% loss.
Bryan Socha Network Engineer DigitalOcean
-- Vlade Ristevski Network Manager IT Services Ramapo College (201)-684-6854