[ 951.104990][T20170] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 951.105476][T20170] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 952.163279][T20229] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 952.163919][T20229] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode