Method used to check the license revocation code on firewalls

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You can check the license revocation code as follows:
Run the display license revoke-ticket command.

Other related questions:
How can I display license revocation codes on the SC?
To display license revocation codes on the SC, perform the following operations: 1. Run the display command to go to the display view. 2. Run the revoke-ticket command to display license revocation codes. For details, see HUAWEI SMC2.0 V500R002C00 SC Command Reference Guide.

View a license revocation code
Run the following command in any view to view a license revocation code: On CE12800 series switches, run the display license revoke-ticket [ chassis chassis-number ] command. On CE8800&7800&6800&5800 series switches, run the display license revoke-ticket [ slot slot-id ] command. chassis-number indicates a stacked chassis ID, and slot-id indicates a switch's slot ID. display license revoke-ticket Info: The revoke ticket is: LIC20121103006100:27C1B773ED11D9F877855CDAEE74ABFE60E07126.

How to obtain a license revocation code on the AC
A license revocation code is a character string generated after you run the license revoke command. The revocation code determines whether a license file is invalid. To obtain the revocation code, perform the following steps: - Run the license revoke command to make the current license enter the Trial state, and obtain the license revocation code. - After the license enters the Trial state, you can also run the display license revoke-ticket command to obtain the license revocation code.

How to query the revocation code of the U1900 license?
To query the revocation code of the U1900 license, do as follows: Run the show disabled license information command. The revocation code is displayed in the command output.

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