[  511.791867] bond0: (slave eth0): making interface the new active one
[  511.791955] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.995879] bond0: (slave eth0): Releasing backup interface
[  516.113189] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.288728] bond0: (slave eth0): Releasing backup interface
[  520.319005] bond0 (unregistering): Released all slaves