Hi, At 0700 EDT on Tuesday, April 25, all peering sessions on ENSSes: 128 129 130 131 133 134 135 137 139 140 141 142 143 145 will be commented out of the routing configuration files. If there is a catastrophic failure tomorrow morning, Merit will advise the ANS NOC to roll back to the previous configuration (the one installed on Tuesday morning). If it is determined that problems are isolated to individual autonomous systems, Merit will enable the sessions with those individual autonomous sytems. If there are individual routes from many sources which are unreachable, Merit will designate one emergency configuration time period at which all of the independent additions wil be made. If you are experiencing problems tomorrow after 0700 EDT, please call 1-800-456-6300 or 1-313-677-7333. The NOC operators will page a Merit engineer to help you. If you still have email access, you may send a message to trouble@ans.net. Thanks for your help in getting prepared for this day. --Elise