A permanent license (for select features on specific units) can be ordered pre-installed in a Extreme device when first shipped from the factory, or later ordered and installed by the customer. In either case, additional licenses can be ordered as needed.
When a license is ordered separately (not pre-installed), a fulfillment email message, along with a Voucher ID (VID), is issued to you by Extreme as proof of purchase. The VID and license ID (LID) of the Extreme device are used to generate a license key from the Extreme Portal. The license key is contained within a license file , which can be uploaded to the switch. You can add the license key to a switch using the license add command, or the license add FTP-URL ftpPath | SCP-URL scpPath] command. Once a license is installed on the SLX-OS switch, you may be prompted to disable and reenable the specific ports to activate the license. The license key is stored in the flash file system on all SLX switch devices.