Replace Primary WLC HA SSO
Replace the primary WLC in HA SSO setup
- Make sure that the first WLC is the same version as the other WLC.
- Configure the WLC with the same subnet management IP addresses as the previous WLC.
- Configure the new WLC with HA configuration that includes redundant management, IP address, and peer primary. Enable the AP SSO.
- When the AP SSO is enabled, it reboots. While it reboots, the AP SSO discovers the current active secondary, syncs the configuration, and transitions to a hot standby state.
Note: You do not need to break the HA configuration on the current active WLC or reboot the current active WLC. The configuration will be synced with the current active WLC.