[ 948.631304][T20841] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 948.631845][T20841] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 949.375414][T20905] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 949.375758][T20905] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode