How do I change the MAC address of an AR

To change the MAC address of an AR, use the following method.
Run the set system-mac command in the diagnostic view.
For example,
# Change the default MAC address to 00e0-0987-7890.
[Huawei] diagnose
[Huawei-diagnose] set system-mac default 00e0-0987-7890
Info: The public mac-address set pass.

A MAC address is globally unique. Do not change the MAC address of an AR in normal situations.

When configuring a MAC address, note the following points:
- The MAC address cannot be all 0s or all 1s.
- The multicast MAC address cannot be configured.
- If a device supports multiple MAC addresses, the last four bits of the MAC address must be all 0s.

Other related questions:
How do I configure the blackhole MAC address of an AR
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