[  873.728831] 8021q: adding VLAN 0 to HW filter on device test-bond0
[  873.728990] test-bond1: (slave test-bond0): making interface the new active one
[  873.729097] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link
[  873.752508] 8021q: adding VLAN 0 to HW filter on device test-bond1
[  873.763751] test-bond1: entered promiscuous mode
[  873.763789] test-bond0: entered promiscuous mode
[  874.766969] test-bond1: left promiscuous mode
[  874.767023] test-bond0: left promiscuous mode
[  875.608807] test-dummy0: entered promiscuous mode
[  877.625559] test-dummy0: left promiscuous mode
[  877.781480] test-bond1 (unregistering): (slave test-bond0): Releasing backup interface
[  877.787011] test-bond1 (unregistering): Released all slaves
[  877.801438] test-bond0 (unregistering): Released all slaves