[  514.984207] bond0: (slave eth0): making interface the new active one
[  514.984281] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.188709] bond0: (slave eth0): Releasing backup interface
[  519.291295] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.488825] bond0: (slave eth0): Releasing backup interface
[  523.525823] bond0 (unregistering): Released all slaves