[  511.635907] bond0: (slave eth0): making interface the new active one
[  511.635993] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.822777] bond0: (slave eth0): Releasing backup interface
[  515.901152] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.044974] bond0: (slave eth0): Releasing backup interface
[  520.079902] bond0 (unregistering): Released all slaves