sample config on ArubaCX:

port-access role testrole1
auth-mode device-mode
reauth-period 3600
cached-reauth-period 28800
vlan trunk native 1
vlan trunk allowed 1-50


needed Radius attribute:
Radius:Aruba:Aruba-User-Role: testrole1

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- see also:
https://community.arubanetworks.com/community-home/digestviewer/viewthread?MID=34779

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- good to know:
- bug in version 10.08 + 10.09 !! only 50 vlan's per role permitted! "Failed to associate VLANs to the Role. Maximum of 50 VLANs is allowed"
- according to documentation, 256 vlan's should be permitted!
>> https://www.arubanetworks.com/techdocs/AOS-CX/10.10/HTML/security_4100i-6000-6100/Content/Chp_Port_acc/Port_acc_rol_cmds/vla-por-acc-fl-ml-10.htm

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