[  872.520324][T20519] bond0: (slave eth0): making interface the new active one
[  872.521269][T20519] bond0: (slave eth0): Enslaving as an active interface with an up link
[  872.568005][T20520] 8021q: adding VLAN 0 to HW filter on device bond0
[  876.840697][T20523] bond0: (slave eth0): Releasing backup interface
[  876.968135][T20526] bond0: (slave eth0): Enslaving as an active interface with an up link
[  877.011841][T20527] 8021q: adding VLAN 0 to HW filter on device bond0
[  881.197839][   T12] bond0: (slave eth0): Releasing backup interface
[  881.264165][   T12] bond0 (unregistering): Released all slaves