[ 959.219058][T20500] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 959.219548][T20500] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 959.992961][T20558] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 959.993298][T20558] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode