[  513.697411] bond0: (slave eth0): making interface the new active one
[  513.697539] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.909440] bond0: (slave eth0): Releasing backup interface
[  517.991971] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.130249] bond0: (slave eth0): Releasing backup interface
[  522.158116] bond0 (unregistering): Released all slaves