HP VAN SDN Controller Administrator Guide v3

7. Review the confirmation screen details.
8. For each license you are transferring, record the new license key so that it will be available
when you add and activate the license on the new controller.
9. Optional: To e-mail transferred license details:
a. Enter one or more e-mail addresses, separated by a comma or semi-colon in the field
provided.
b. Optional: Enter Comments about this license transfer.
c. Click Send email.
The license screen displays the status of the original licenses as Transferred, and the new Install
IDs as Active, as shown in Figure 69.
Figure 69 Review transferred license status screens
To register the transferred licenses on the new controller, see “Activating a license on the controller”
(page 59).
3.7 Managing licenses across a controller software upgrade
To upgrade the controller software, you must uninstall the current controller version before installing
the upgrade version. Because uninstalling the controller also uninstalls any installed licenses, use
the following procedure to preserve the licenses during the upgrade process.
1. Note the Install ID on the controller to be replaced.
2. Use the procedure under “Uninstalling licenses to prepare for transfer” (page 61) to uninstall
the current controller licenses and record the uninstall key for each license.
3. Remove the current controller.
4. Install the new controller version.
5. Note the Install ID for the new controller version.
6. Follow the procedure for transferring licenses, under “Transferring licenses” (page 61).
7. Using the license keys from the license transfer confirmation, activate the licenses on the
upgraded controller version. (See “Activating a license on the controller” (page 59).)
NOTE: When you update and restart the controller, you must also do either one of the following
to ensure that old flows are cleared from the controlled switches:
• Reboot the controlled switches
• On each controlled switch, disable OpenFlow, the re-enable it
3.8 License Troubleshooting
Table 4 lists recommended solutions for possible error messages that may display during the HP
VAN SDN Controller license registration and activation process.
64 License Registration and Activation