[  515.290906] bond0: (slave eth0): making interface the new active one
[  515.290989] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.527802] bond0: (slave eth0): Releasing backup interface
[  519.631920] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.815026] bond0: (slave eth0): Releasing backup interface
[  523.838944] bond0 (unregistering): Released all slaves