We are looking to migrate from the 7131s to the 7562. The issue arises in that we are deploying in a mobile environment.. Migrating from WiNG 4 to WiNG 5 won't work for us as they're incompatible and we don't know when a particle AP will be meshing with another on any given day. The only real option we have is to deploy the 7562 along side the 7131 and "flip the switch" on the whole architecture at once. Has anyone ever done something. Any migration plans on this site or have any lessons learned? Our thought is to plug each AP into into a port on a switch, have the ports turned down on the old AP, shut down the port leading to the old AP, and turning up the port on the new AP. Currently the router is the DHCP server, but we will be looking at employing a VX9000. Any advice would be appreciated!