[  503.770054] bond0: (slave eth0): making interface the new active one
[  503.770135] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.984785] bond0: (slave eth0): Releasing backup interface
[  508.088091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.278839] bond0: (slave eth0): Releasing backup interface
[  512.306804] bond0 (unregistering): Released all slaves