[  516.026697] bond0: (slave eth0): making interface the new active one
[  516.026765] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.220187] bond0: (slave eth0): Releasing backup interface
[  520.318608] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.506050] bond0: (slave eth0): Releasing backup interface
[  524.540900] bond0 (unregistering): Released all slaves