[  968.533733][T20326] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  968.534237][T20326] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  969.224657][T20383] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  969.225004][T20383] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode