Understanding the licensing process
Your Matrix is pre-licensed. Relicensing the device requires that you request a new license from VIAVI and then import a multi-line license string.
The device is pre-licensed at the factory. The license enables ports in blocks of four starting at port 1. It also indicates the number of blocks that are 10 Gb-capable. If you have eight ports licensed, you may only use ports 1-8. Ports 9-24 remain dark and unusable even if you insert an SFP module. If you need more ports or blocks of 10 Gb, you can request a license upgrade.
A license is tied to a specific hardware device and is non-transferable. Therefore, a license generated for one device cannot be used on another device.
How to request a new license
Request a new license if you are adding functionality such as additional ports or speed capability, licensing a new replacement Matrix, or in the extremely rare instance where your license file is corrupt.
If you are upgrading several devices, you must generate a license request from each one.
1. Starting in the dashboard, click System.
2. Click License.
3. Click Generate License Request.
4. Verify the name of your company in the Organization box is correct. Click OK.
This generates a multi-line license string.
5. Right-click and copy the entire string (including the License Begin and License End lines) and send it to VIAVI in an e-mail.
If you are keeping the same number of ports and capabilities, send the e-mail to NISupport@viavisolutions.com.
If you are adding new ports or upgrading the capabilities, contact your sales representative.
Tip! If you are upgrading many devices at once, create a document with the host name from System > System Info and device license ID from System > License. Doing so makes matching license to the correct device easier later on when you receive the new licenses.
 
You will receive an e-mail message from VIAVI with the device license ID and a new license string. Save this e-mail message!
 
How to re-license the appliance
Import a new license if you are adding functionality such as additional ports or speed capability, licensing a new replacement Matrix, or in the extremely rare instance where your license file is corrupt.
Prerequisite(s):  
License e-mail with the license string.
If you are upgrading several devices, your document matching each host name with its device license ID.
 
If you are upgrading several devices, you must import the license specific to that device. It is matched by the device license ID.
1. Locate the license string for the device to be re-licensed and copy the entire string (including the License Begin and License End lines) to your computer's clipboard.
This places the text string in memory and is used later in this procedure.
2. Starting in the dashboard, click System.
3. Click License.
4. Click Import License.
5. Paste the license string from step 1.
 
The license takes effect immediately. If your license adds new functionality, it is available now. No system restart is necessary.
 
 
If the license cannot be imported, it may be because the license:
Was incorrectly copied/pasted (in other words, characters are missing). Ensure the entire string block is copied.
Is invalid for this device. The string you copied may be a valid license, but not for this specific system. Double check the device license ID on from System > System Info.
Is invalid. Contact Technical Support.