[ 958.616901][T20478] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 958.617453][T20478] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 959.479282][T20540] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 959.479678][T20540] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode