Lee Badman of wirednot comments:
The last time I got hands-on familiar with Aruba’s wireless gear, the AP-125 was king of their lineup and the company didn’t have a switch offering. Like with my own Cisco network at the time, you were pretty much doing the thin AP thing with Aruba controllers, or you were doing another product set back in the day.
Lee has some great things to say about Aruba Instant. It’s a great way to configure a one-off AP without a controller.
Read more at: Appreciating Aruba Networks’ Instant Mode