Users Guide

Figure 9 Alert Flag
At the end of the 90-day period, you must apply for a permanent license to re-enable the features
permanently on the controller. Evaluation software license keys are only available in electronic form and are
emailed to you.
When an evaluation period expires:
n The controller automatically backs up the startup configuration and reboots itself at midnight (according
to the system clock).
n All permanent licenses are unaffected. The expired evaluation licensed feature is no longer available and
is displayed as Expired in the WebUI.
l Upgrade license—This license expands AP capacity. There are no Evaluation licenses available for Upgrade
licenses.
Centralized Licensing in a Multi-Controller Network
In order to configure each feature on the local controller, the master controller(s) must be licensed for each
feature configured on the local controllers. Centralized licensing simplifies licensing management by
distributing licenses installed on one controller to other controllers on the network. One controller acts as a
centralized license database for all other controllers connected to it, allowing all controllers to share a pool of
unused licenses. The primary and backup licensing servers can share a single set of licenses, eliminating the
need for a redundant license set on the backup server. Local licensing client controllers maintain information
sent from the licensing server, even if the licensing client controller and the licensing server controller can no
longer communicate. If an AP fails over from one client controller to another, the AP will be allowed to come up
even if there aren’t sufficient licenses present on the backup controller. the APs continue to stay active until
they reboot. However, if there are not sufficient available licenses to bring up an AP after it reboots, that AP will
not become active.
You can use the centralized licensing feature in a master-local topology with a redundant backup master, or in a
multi-master network where all the masters can communicate with each other (for example, if they are all
connected to a single W-AirWave server). In the master-local topology, the master controller acts as the primary
licensing server, and the redundant backup master acts as the backup licensing server. In a multi-master
network, one controller must be designated as a primary server, and a second controller must be configured as
a backup licensing server.
Centralized licensing can distribute the following license types:
l AP
l PEFNG
l RFProtect
l xSec
l ACR
This section includes the following topics:
l Primary and Backup Licensing Servers
l Communication between the License Server and License Clients
Dell Networking W-Series ArubaOS 6.4.x | User Guide Software Licenses | 148