[  507.379978] bond0: (slave eth0): making interface the new active one
[  507.380109] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.571199] bond0: (slave eth0): Releasing backup interface
[  511.658032] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.797171] bond0: (slave eth0): Releasing backup interface
[  515.835160] bond0 (unregistering): Released all slaves