[  515.839192] bond0: (slave eth0): making interface the new active one
[  515.839270] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.087271] bond0: (slave eth0): Releasing backup interface
[  520.195027] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.382052] bond0: (slave eth0): Releasing backup interface
[  524.415930] bond0 (unregistering): Released all slaves