[  511.316389] bond0: (slave eth0): making interface the new active one
[  511.316474] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.537090] bond0: (slave eth0): Releasing backup interface
[  515.629087] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.826969] bond0: (slave eth0): Releasing backup interface
[  519.846927] bond0 (unregistering): Released all slaves