Is a space in the ESN number of an AR router valid

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A space in the ESN number of an AR router is invalid.

Other related questions:
Are spaces allowed in the ESN of an AR router
A space in an ESN of an AR router is an invalid character.

How to query the card SN on an AR router
The method of querying the card SN on an AR router is as follows: Run the display elabel command to query the BarCode field of the slot corresponding to the card.

How do I query the ESN of an AR
The Equipment Serial Number (ESN) of an AR is unique. When applying for a license, provide the ESN of the AR. You can run the display esn command on the AR to check the ESN.

Querying the equipment serial number (ESN)
For the USG6000, you can run the display esn command to view the ESN of an MPU. For the USG9500, you can run the display esn all command to view the ESNs of all components.

How to modify the web interface number of an AR router
1. Use command lines. Run the http server port command on an AR router to modify the interface number of the HTTP service. [Huawei] http server port 1278 Alternatively, run the http secure-server port command to modify the interface number of the HTTPS service. [Huawei] http secure-server port 1279 2. Modify the interface number on a web page by choosing Maintenance > Upgrade&Maintenance > Local Service Settings For details, choose Configuration >Web-based Configuration > EasyOperation Edition > Maintenance > Upgrade&Maintenance > Local Service Settings through the URL: Product Documentation.

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