[ 971.767633][T21683] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 971.768081][T21683] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 972.486978][T21743] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 972.487309][T21743] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode