Replace Primary WLC HA SSO

Replace the primary WLC in HA SSO setup

https://www.cisco.com/c/en/us/support/docs/interfaces-modules/wireless-services-module-2-wism2/117729-configure-wlan-00.html

  1. Make sure that the first WLC is the same version as the other WLC.
  2. Configure the WLC with the same subnet management IP addresses as the previous WLC.
  3. Configure the new WLC with HA configuration that includes redundant management, IP address, and peer primary. Enable the AP SSO.
  4. 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.

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