By default, the Brocade device uses the MAC address of the first port (1 or 1/1) as the MAC address for all virtual routing interfaces configured on the device.
You can specify a different MAC address for the virtual routing interfaces. If you specify another MAC address for the virtual routing interfaces, the address applies to all of the virtual routing interfaces configured on the device.
To specify the MAC address for virtual routing interfaces, enter commands such as the following:
Brocade(config)# virtual-interface-mac aaaa.bbbb.cccc
Brocade# write memory
Enter the MAC address in the following format:
NOTE: You must save the configuration and reload the software to place the change into effect.