Hi there, Sorry if I've missed some details about these upgrades, but I'm concerned that the upgrades scheduled for the same evening don't all happen at once. In particular, those scheduled for 12/18 involve taking both E133 and E136 down. If both are down at the same time, the NSFNet would lose connectivity to PSINet. If the down times are already scheduled to be staggered, please let us know when each will be down. If they are not already so scheduled, can they be? -Mitch