[  519.364461] bond0: (slave eth0): making interface the new active one
[  519.364553] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.533968] bond0: (slave eth0): Releasing backup interface
[  523.609138] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.763407] bond0: (slave eth0): Releasing backup interface
[  527.786343] bond0 (unregistering): Released all slaves