[ 969.458772][T20928] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 969.459715][T20928] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 970.292874][T20993] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 970.298050][T20993] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode