The mac-address command configures a MAC address for an interface.
The undo mac-address command restores the default MAC address of an interface.
By default, the MAC address of the interface is the system MAC address.
| Parameter | Description | Value |
|---|---|---|
| mac-address |
Specifies the MAC address of the interface. |
The value is in the format of H-H-H. Each H is a 4-digit hexadecimal number, such as 00e0 or fc01. If an H contains less than four bits, 0 is padded ahead. For example, if e0 is entered, it is equal to 00e0. A MAC address cannot be set to all 0s or all 1s. |
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Usage Scenario
To ensure the normal transmission of service data flows, run the mac-address command to configure the MAC address of the interface based on users' requirements.
Prerequisites
Run either of the following commands to configure the Ethernet sub-interface before running the mac-address command.
Configuration Impact
After the MAC address of an interface is changed, the device sends gratuitous ARP packets to update the mapping relationship between MAC addresses and interfaces.