[ 951.432572][T20915] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 951.433424][T20915] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 952.136299][T20975] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 952.136625][T20975] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode