[  510.865400] bond0: (slave eth0): making interface the new active one
[  510.865491] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.104646] bond0: (slave eth0): Releasing backup interface
[  515.230601] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.444017] bond0: (slave eth0): Releasing backup interface
[  519.473962] bond0 (unregistering): Released all slaves