[  505.383580] bond0: (slave eth0): making interface the new active one
[  505.383703] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.590625] bond0: (slave eth0): Releasing backup interface
[  509.670308] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.820414] bond0: (slave eth0): Releasing backup interface
[  513.857414] bond0 (unregistering): Released all slaves