How to determine whether an AP is working in fit AP or fat AP mode?

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After the factory-configured AP is started, without registering to the AC, enter through the configuration port and run the command: 

    [H3C]display interface vlan 1

If the address is displayed as 192.168.0.50, this AP is Fat AP, if there is no address, it is a thin AP. 

In another way, in the user view, use the "dir" command to view the startup version. If the underscore is followed by fit, it is a fit AP, and if it is fat, it is a fat AP.