[ 950.585496][T20518] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 950.586051][T20518] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 951.322747][T20581] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 951.323589][T20581] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode