[  515.261181] bond0: (slave eth0): making interface the new active one
[  515.261265] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.521821] bond0: (slave eth0): Releasing backup interface
[  519.633568] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.799152] bond0: (slave eth0): Releasing backup interface
[  523.826057] bond0 (unregistering): Released all slaves