[  833.438551][T21978] bond0: (slave eth0): making interface the new active one
[  833.439119][T21978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  833.484081][T21979] 8021q: adding VLAN 0 to HW filter on device bond0
[  837.702933][T21982] bond0: (slave eth0): Releasing backup interface
[  837.861376][T21985] bond0: (slave eth0): Enslaving as an active interface with an up link
[  837.915295][T21986] 8021q: adding VLAN 0 to HW filter on device bond0
[  842.115128][   T12] bond0: (slave eth0): Releasing backup interface
[  842.162533][   T12] bond0 (unregistering): Released all slaves