[  968.218682][T21933] bond0: (slave eth0): making interface the new active one
[  968.219099][T21933] bond0: (slave eth0): Enslaving as an active interface with an up link
[  968.270961][T21934] 8021q: adding VLAN 0 to HW filter on device bond0
[  972.488875][T21937] bond0: (slave eth0): Releasing backup interface
[  972.651314][T21940] bond0: (slave eth0): Enslaving as an active interface with an up link
[  972.691002][T21941] 8021q: adding VLAN 0 to HW filter on device bond0
[  976.891367][T20286] bond0: (slave eth0): Releasing backup interface
[  976.932488][T20286] bond0 (unregistering): Released all slaves