B-Root suffered a partial traffic loss on 2017-03-02 from approximately 08:10 UTC until 10:00 UTC. The cause of this partial outage was routing instability at our LAX anycast site. This routing instability was due to planned maintence at one of our upstream providers.
Our second anycast site picked up some of the traffic during the failure, but unfortunately the nature of the problems upstream resulted in routing instability and partial loss rather than a clean fail-over.