[  868.516030][T18917] bond0: (slave eth0): making interface the new active one
[  868.516526][T18917] bond0: (slave eth0): Enslaving as an active interface with an up link
[  868.562928][T18918] 8021q: adding VLAN 0 to HW filter on device bond0
[  872.789789][T18921] bond0: (slave eth0): Releasing backup interface
[  872.950840][T18924] bond0: (slave eth0): Enslaving as an active interface with an up link
[  872.990504][T18925] 8021q: adding VLAN 0 to HW filter on device bond0
[  877.213157][  T250] bond0: (slave eth0): Releasing backup interface
[  877.258605][  T250] bond0 (unregistering): Released all slaves