Service Maintenance Notice, Additional Hardware Upgrades 19 March 2012 Network-Operations Maintenance (0) Location: 1200 Washington Ave N MINNEAPOLIS MN 55401 United StatesDate/Time: Monday , 04/16/2012 11:00PM CDT (GMT -5) Tuesday , 04/17/2012 06:00AM CDT (GMT -5) Type: Hardware Upgrade on Core Routers