[  503.761404] bond0: (slave eth0): making interface the new active one
[  503.761516] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.977393] bond0: (slave eth0): Releasing backup interface
[  508.055216] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.209777] bond0: (slave eth0): Releasing backup interface
[  512.255531] bond0 (unregistering): Released all slaves