Tonight, Tuesday January 24 at 12:01 AM, we will be replacing the core router in our datacenter which failed earlier this morning. The switchover should only take a few minutes, and traffic will be routed around the affected router. If there is any disruption, as routing updates, it should not last more than 5-10 minutes at worst.
Update: The router replacement has been completed without incident. There should have been no impact to customer traffic. In a few days we will schedule a replacement of the other in the pair of redundant routers in our Santa Rosa datacenter.