[  959.688989][T20813] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  959.689605][T20813] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  960.627951][T20871] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  960.628275][T20871] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode