What are the differences between the MAC address of a bridge on an AR router and a normal MAC address

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The MAC address of a bridge on an AR router equals to a normal MAC address. A bridge bridges complete Layer-2 Ethernet packets.

Other related questions:
What the diffrence between AR router MAC address of the bridge and ordinary MAC address
AR router MAC address of the bridge and ordinary MAC address are equivalent, a bridge bridge is complete ethernet packets on the second floor.

What are the differences between network bridge MAC addresses and common MAC addresses
The two types of MAC addresses have the same functions. Packets bridged by network bridges are complete Ethernet Layer 2 packets.

What are the differences between static MAC addresses and sticky MAC addresses
Both types of media access control (MAC) addresses are saved as static MAC addresses on devices. However, static MAC addresses and sticky MAC addresses have difference origins. Static MAC addresses are created manually, while sticky MAC addresses are converted from valid dynamic MAC addresses after the sticky MAC address is enabled on an interface. Static MAC addresses and sticky MAC addresses are stored on an AR and are not aged. Static MAC addresses are manually configured, and sticky MAC addresses are converted by dynamic MAC addresses when the sticky MAC function is enabled on an AR. Static MAC addresses and sticky MAC addresses are stored on an AR and are not aged. Static MAC addresses are manually configured, and sticky MAC addresses are converted by dynamic MAC addresses when the sticky MAC function is enabled on an AR.

Can the MAC address of the bridged virtual interface of a bridge on an AR router be modified

The MAC address of the bridged virtual interface (BVI) of a bridge on an AR router can be modified.
You can run the mac-address command in the Bridge-if interface view to modify the MAC address of the current bridged virtual interface.
The MAC address of a bridged virtual interface is the system MAC address, which may conflict with the MAC addresses of other interfaces or virtual interfaces. If the MAC address of a bridged virtual interface conflicts with the MAC addresses of member interfaces of the bridge group, the bridged virtual interface cannot transmit traffic in Layer 3.
When configuring a bridged virtual interface, confirm whether the MAC address of the interface conflicts with the MAC addresses of the member interfaces of the bridge group. If the MAC addresses conflict, you can run the mac-address command to modify the MAC address of the Bridge-if interface.
After the MAC address of the bridged virtual interface is modified, the device proactively sends a free ARP to update the ARP entries on the peer device.

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