carrier comparison

Vlade Ristevski vristevs at
Fri Feb 7 20:57:00 UTC 2014

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

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