This is a command in common
mode. By default, the unified NAC configuration mode is used. To configure MAC
address authentication in common mode, you need to run the undo authentication
unified-mode command to switch the NAC mode to common mode.
You can also
use the modular configuration in unified mode. Compared with the common mode,
unified mode makes the configuration clearer and configuration model easier to
understand.
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100101074&id=EN-US_TASK_0176368818&text=Creating%252520a%252520MAC%252520Access%252520Profile&lang=en