[  513.767496] bond0: (slave eth0): making interface the new active one
[  513.767602] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.978806] bond0: (slave eth0): Releasing backup interface
[  518.087331] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.260951] bond0: (slave eth0): Releasing backup interface
[  522.281861] bond0 (unregistering): Released all slaves