[  508.433506] bond0: (slave eth0): making interface the new active one
[  508.433612] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.602847] bond0: (slave eth0): Releasing backup interface
[  512.692824] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.890923] bond0: (slave eth0): Releasing backup interface
[  516.912892] bond0 (unregistering): Released all slaves