[  975.257709][T21415] bond0: (slave eth0): making interface the new active one
[  975.258205][T21415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  975.312756][T21416] 8021q: adding VLAN 0 to HW filter on device bond0
[  979.541582][T21419] bond0: (slave eth0): Releasing backup interface
[  979.700248][T21422] bond0: (slave eth0): Enslaving as an active interface with an up link
[  979.751043][T21423] 8021q: adding VLAN 0 to HW filter on device bond0
[  983.961401][   T12] bond0: (slave eth0): Releasing backup interface
[  984.012368][   T12] bond0 (unregistering): Released all slaves