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
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