[  513.471431] bond0: (slave eth0): making interface the new active one
[  513.471498] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.724045] bond0: (slave eth0): Releasing backup interface
[  517.846568] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.079021] bond0: (slave eth0): Releasing backup interface
[  522.111086] bond0 (unregistering): Released all slaves