[  516.336427] bond0: (slave eth0): making interface the new active one
[  516.336508] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.519717] bond0: (slave eth0): Releasing backup interface
[  520.581560] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.745163] bond0: (slave eth0): Releasing backup interface
[  524.780071] bond0 (unregistering): Released all slaves