[ 880.286783] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 880.286871] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 880.403214] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 880.403294] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode