[  508.522649] bond0: (slave eth0): making interface the new active one
[  508.522739] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.723851] bond0: (slave eth0): Releasing backup interface
[  512.815882] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.006750] bond0: (slave eth0): Releasing backup interface
[  517.029634] bond0 (unregistering): Released all slaves