[  851.168892][T21522] 8021q: adding VLAN 0 to HW filter on device test-bond0
[  851.170098][T21522] test-bond1: (slave test-bond0): making interface the new active one
[  851.170568][T21522] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link
[  851.319483][T21533] 8021q: adding VLAN 0 to HW filter on device test-bond1
[  851.500308][T21542] test-bond1: entered promiscuous mode
[  851.500478][T21542] test-bond0: entered promiscuous mode
[  852.515250][T21542] test-bond1: left promiscuous mode
[  852.515501][T21542] test-bond0: left promiscuous mode
[  854.084014][T21544] test-dummy0: entered promiscuous mode
[  856.118387][T21544] test-dummy0: left promiscuous mode
[  856.337724][T21548] test-bond1 (unregistering): (slave test-bond0): Releasing backup interface
[  856.349283][T21548] test-bond1 (unregistering): Released all slaves
[  856.395790][T21549] test-bond0 (unregistering): Released all slaves