[  514.660531] bond0: (slave eth0): making interface the new active one
[  514.660630] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.870211] bond0: (slave eth0): Releasing backup interface
[  518.994955] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.158089] bond0: (slave eth0): Releasing backup interface
[  523.192149] bond0 (unregistering): Released all slaves