[  516.646927] bond0: (slave eth0): making interface the new active one
[  516.647039] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.849892] bond0: (slave eth0): Releasing backup interface
[  520.917825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.076115] bond0: (slave eth0): Releasing backup interface
[  525.093113] bond0 (unregistering): Released all slaves