[  503.876642] bond0: (slave eth0): making interface the new active one
[  503.876764] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.050248] bond0: (slave eth0): Releasing backup interface
[  508.130788] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.273558] bond0: (slave eth0): Releasing backup interface
[  512.312525] bond0 (unregistering): Released all slaves