In previous releases, changing FortiSwitch split ports and then restarting the managed FortiSwitch unit caused the FortiGate device to have to rediscover and re-authorize the FortiSwitch unit. Now, the FortiGate device automatically updates the port list after split ports are changed and the FortiSwitch unit restarts. When split ports are added or removed, the changes are logged.
If there are any configuration errors with the split ports, you can use one of the following commands to check the errors and fix them:
execute switch-controller get-sync-status all
execute switch-controller get-sync-status switch-id <FortiSwitch_serial_number>