[  509.054954] bond0: (slave eth0): making interface the new active one
[  509.055050] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.309593] bond0: (slave eth0): Releasing backup interface
[  513.420501] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.590045] bond0: (slave eth0): Releasing backup interface
[  517.617981] bond0 (unregistering): Released all slaves