[ 960.558116][T20920] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 960.558700][T20920] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 961.523008][T20968] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 961.523680][T20968] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode