Need to roll out a new firmware revision to all your access points connected to your controller? Maybe you need to convert some into autonomous mode?
Easy and simple way to accomplish this. Load up your IOS file onto a TFTP server and then connect to the CLI of your controller.
Enter this command for each AP:
config ap tftp-downgrade tftp-server-ip-address filename access-point-name
Your access point will download the image, update and reboot itself and you can do all this from the safety and comfort of your desk. Remember a good network admin is a lazy network admin.