AboveNet/MFN will be performing maintenance on
>> the er1.at12 router on Tuesday, July 22, 2003,
>> during our routine maintenance window of 2:00AM
>> to 4:00AM EDT. The maintenance will involve
>> replacing the power shelf on this router, which
>> will require us to power down the router for
>> approximately 30 to 45 minutes.

this will mean our abovnet connection will be down - you may notice weird traces for a bout 5 minutes as bgp moves everything to williams.
There should not be any downtime because tracers wiil be re-routed through other connections.