[ 955.644663][T20844] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 955.645148][T20844] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 956.606487][T20894] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 956.606789][T20894] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode