If RTU licenses are loaded for Fit APs on an AC, you can run the display ap-rtu-status all command on the AC to check the RTU license status of the APs.
In a backup scenario, RTU licenses may be loaded in batches. For example, some RTU licenses are delivered by the active AC, an active/standby switchover occurs, and then remaining RTU licenses are delivered by the original standby AC. In this case, when you check the RTU license loading status of APs on the original active AC, only the RTU licenses delivered by the original active AC are displayed. The loading status of other RTU licenses can be displayed only on the original standby AC. After the RTU licenses for APs are loaded, the RTU status of the APs can be queried on the active AC.