Network outage due to convergence of poor traffic engineering and point to point link outage

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so yeah, uh, the point to point link from 55 s. market to 250 stockton died this evening.     No problem, right?  we have a transit provider at 250 stockton (cogent) and one at 55 s market (he.net)

Problem was, instead of announcing the /24 blocks we used at 250 stockton to cogent and the /24 blocks at 55 s. market to he.net and then the /20 in both, we just announced the /20 in both.  

I made the more detailed announcements, which brought us up (though traffic from one to the other was still broken) 

At this point, the point to point link is back up, so everything should be better now.

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This page contains a single entry by luke published on December 11, 2012 7:52 PM.

one month credit for users effected by cerberus outage applied was the previous entry in this blog.

extended network outage for 71.19.154/24 due to me being a tired idiot is the next entry in this blog.

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