[  508.579713] bond0: (slave eth0): making interface the new active one
[  508.579783] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.784311] bond0: (slave eth0): Releasing backup interface
[  512.889028] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.068836] bond0: (slave eth0): Releasing backup interface
[  517.096850] bond0 (unregistering): Released all slaves