get https://de1.api.central.arubanetworks.com/network-config/v1alpha1/server-groups//attribute-profile/nas-identifier
Configure the Network Access Switch Identifier.NAS-Id will be sent in RADIUS access-request and accounting packets, which is used to notify
the source of RADIUS access request. NAS-Id can be a FQDN of the NAS or any unique string to identify the NAS.