In the final step of the Phase 5 deployment, we will be upgrading both the Washington DC CNSS and connected sites and the Hartford CNSS and its connected sites. Since a number of providers (PSI, Alternet, and NEARnet) have dual attachment connectivity via these two CNSSs, we have staggered the upgrades to minimize loss of NSFNET Backbone Service connectivity. The following is our detailed schedule for Phase 5 Step 6: 11:00pm 12/17 CE on site at Hartford/Washington POPs 12:00am 12/18 C51, C59 Upgrade 01:00am 12/18 CE on site C40(revisit) E133 E134 01:30am 12/18 C48, C40, E133, E134 Upgrade 03:00am 12/18 CE on site E146 03:30am 12/18 C49, C57, E146 Upgrade 05:00am 12/18 CE on site C32(revisit) 05:30am 12/18 C56, C32 Upgrade 07:00am 12/18 CE on site C72(revisit) E145 E136 07:30am 12/18 C58, C72, E145, E136 Upgrade Please note that the Step 6 window is scheduled from Midnight to 11:30am on Saturday, December 18th. -Ittai