[  514.745744] bond0: (slave eth0): making interface the new active one
[  514.745840] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.004930] bond0: (slave eth0): Releasing backup interface
[  519.126936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.354054] bond0: (slave eth0): Releasing backup interface
[  523.376940] bond0 (unregistering): Released all slaves