[ 957.854810][T20856] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 957.855608][T20856] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 958.854659][T20913] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 958.854951][T20913] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode