[ 956.677090][T20152] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 956.678135][T20152] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 957.969686][T20199] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 957.970279][T20199] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode