[  516.405550] bond0: (slave eth0): making interface the new active one
[  516.405640] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.671295] bond0: (slave eth0): Releasing backup interface
[  520.792220] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.028981] bond0: (slave eth0): Releasing backup interface
[  525.063087] bond0 (unregistering): Released all slaves