[  504.475664] bond0: (slave eth0): making interface the new active one
[  504.475762] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.699026] bond0: (slave eth0): Releasing backup interface
[  508.807926] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.986162] bond0: (slave eth0): Releasing backup interface
[  513.023095] bond0 (unregistering): Released all slaves