[  511.357558] bond0: (slave eth0): making interface the new active one
[  511.357625] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.543479] bond0: (slave eth0): Releasing backup interface
[  515.647446] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.836962] bond0: (slave eth0): Releasing backup interface
[  519.870971] bond0 (unregistering): Released all slaves