[  511.340629] bond0: (slave eth0): making interface the new active one
[  511.340720] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.604635] bond0: (slave eth0): Releasing backup interface
[  515.717962] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.898307] bond0: (slave eth0): Releasing backup interface
[  519.926077] bond0 (unregistering): Released all slaves