[  522.809549] bond0: (slave eth0): making interface the new active one
[  522.809635] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.996753] bond0: (slave eth0): Releasing backup interface
[  527.072396] bond0: (slave eth0): Enslaving as an active interface with an up link
[  531.222954] bond0: (slave eth0): Releasing backup interface
[  531.248998] bond0 (unregistering): Released all slaves