[  505.244037] bond0: (slave eth0): making interface the new active one
[  505.244153] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.447997] bond0: (slave eth0): Releasing backup interface
[  509.526294] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.680113] bond0: (slave eth0): Releasing backup interface
[  513.710410] bond0 (unregistering): Released all slaves