Run the following commands:
1, Run the display ap-run-info id ap-id command on the AC to view the AP's IP address. Ensure that the AP is in normal state.
2, Run the telnet ap-ip-address command and enter the login user name and password.
3, Run the system-view command to enter the system view.
4, Run the diagnose command to enter the diagnosis view.
5, Run the vrbd command to check system software version information. In the command output, SoftWare Version indicates the software version information.