Upgrading an NPlus1 Site
To upgrade a site running NPlus1, all controllers must be on the same FortiWLC-SD version and the backup controller must be in the same subnet as the primary controllers.
You can choose any of the following options to upgrade:
Option 1 - Just like you would upgrade any controller, you can upgrade an NPlus1 controller.
- Upgrade master and then upgrade slave.
- After the upgrade, run the nplus1 enable command to enable master on slave controller.
Option 2 - Upgrade slave and then upgrade master controller.
After the upgrade, run the nplus1 enable command to enable master service on the slave controller.
Option 3 - If there are multiple master controllers
- Upgrade all master controllers followed by slave controllers. After the upgrade, run the nplus1 enable command to enable all master controllers on slave controllers .
- Run the the nplus1 enable command to enable master controller on slave controller.
- Connect to all controllers using SSH or a serial cable.
- Runthe show nplus1 command to verify if the slave and master controllers are in the cluster.
The output should display the following information:Admin: Enable
Switch: Yes
Reason: ‐
SW Version: 8.3-1 - If the configuration does not display the above settings, run the nplus1 enable <master‐controller‐ip> command to complete the configuration.
- Run the nplus1 add master command to add any missing master controller to the cluster.