[  959.705276][T20336] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  959.706360][T20336] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  960.417225][T20395] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  960.417527][T20395] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode