[  519.316907] bond0: (slave eth0): making interface the new active one
[  519.316995] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.542839] bond0: (slave eth0): Releasing backup interface
[  523.651877] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.838036] bond0: (slave eth0): Releasing backup interface
[  527.876899] bond0 (unregistering): Released all slaves