Purpose loopback ip address IN ARUBA CONTROLLER?

Why would I configure a loopback ip address? Whats the advantage of using it over a standard vlan ip address?

It was to specify a specific address for controller management functions. Since the controller-ip command in ArubaOs 3.4 where you can specify the controller vlan, it is not needed.

REFER: https://community.arubanetworks.com/t5/ArubaOS-and-Controllers/Purpose-loopback-ip-address/td-p/14189

Thanks and Regards

Rajkumar