[  511.947630] bond0: (slave eth0): making interface the new active one
[  511.947768] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.184656] bond0: (slave eth0): Releasing backup interface
[  516.289512] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.467973] bond0: (slave eth0): Releasing backup interface
[  520.503917] bond0 (unregistering): Released all slaves