[ 958.109166][T20905] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 958.110199][T20905] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 958.802395][T20964] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 958.802828][T20964] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode