[  519.026769] bond0: (slave eth0): making interface the new active one
[  519.026861] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.236196] bond0: (slave eth0): Releasing backup interface
[  523.340225] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.517585] bond0: (slave eth0): Releasing backup interface
[  527.546436] bond0 (unregistering): Released all slaves