How to obtain the AC equipment serial number (ESN)

Equipment Serial Number (ESN): uniquely identifies a device. When applying for a new license, you must provide the AC's ESN. The ESN bound with the license must be consistent with that of the AC; otherwise, the license is in Trial state.
Check the ESN of an AC or an AP using either of the following methods:
- Run the display esn command to check the ESN of the AC and AP.
- Check the ESN on the barcode label attached on the surface of the device. The corresponding field of the AC is SN, and that of the AP is PROD ID.
Each AC or AP has a unique ESN.

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