[  509.410243] bond0: (slave eth0): making interface the new active one
[  509.410398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.611363] bond0: (slave eth0): Releasing backup interface
[  513.702486] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.906398] bond0: (slave eth0): Releasing backup interface
[  517.935185] bond0 (unregistering): Released all slaves