How to upgrade the SAC signature database on an AR

The signature database file and system software are separated on Huawei devices. So the signature database file can be loaded and upgraded without affecting normal operation of other services. By default, the signature database file is named sacrule.dat, and it cannot be changed. To upgrade the signature database, contact Huawei local offices or engineers.
Note: There must be an interval of at least 20 seconds between running the sac enable signature and sac update signature commands. When specifying the name of a signature database, enter the complete path and file name to ensure that the configuration can be restored. The signature database file must use .dat as the file name extension. When the sac update signature command is run multiple times to update the signature database file, only the last configuration takes effect.
An example is as follows:
[Huawei] sac update signature flash:/sacrule.dat
Info: The SAC signature lib update successful.

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