[  513.909658] bond0: (slave eth0): making interface the new active one
[  513.909738] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.100609] bond0: (slave eth0): Releasing backup interface
[  518.195337] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.384083] bond0: (slave eth0): Releasing backup interface
[  522.405976] bond0 (unregistering): Released all slaves