[  513.521126] bond0: (slave eth0): making interface the new active one
[  513.521203] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.784568] bond0: (slave eth0): Releasing backup interface
[  517.906369] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.133191] bond0: (slave eth0): Releasing backup interface
[  522.166161] bond0 (unregistering): Released all slaves