[ 967.400659][T20148] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 967.401118][T20148] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 968.566103][T20198] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 968.566568][T20198] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode