[  511.203915] bond0: (slave eth0): making interface the new active one
[  511.204006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.419257] bond0: (slave eth0): Releasing backup interface
[  515.522710] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.697998] bond0: (slave eth0): Releasing backup interface
[  519.724914] bond0 (unregistering): Released all slaves