[  516.435427] bond0: (slave eth0): making interface the new active one
[  516.435502] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.662449] bond0: (slave eth0): Releasing backup interface
[  520.774235] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.954069] bond0: (slave eth0): Releasing backup interface
[  524.986927] bond0 (unregistering): Released all slaves