[  504.291649] bond0: (slave eth0): making interface the new active one
[  504.291723] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.500643] bond0: (slave eth0): Releasing backup interface
[  508.587774] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.780870] bond0: (slave eth0): Releasing backup interface
[  512.805750] bond0 (unregistering): Released all slaves