[  951.696773][T20507] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  951.697213][T20507] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  952.550834][T20557] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  952.551125][T20557] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode