[  508.970335] bond0: (slave eth0): making interface the new active one
[  508.970487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.164152] bond0: (slave eth0): Releasing backup interface
[  513.239898] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.388584] bond0: (slave eth0): Releasing backup interface
[  517.406494] bond0 (unregistering): Released all slaves