[  515.703540] bond0: (slave eth0): making interface the new active one
[  515.703685] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.883237] bond0: (slave eth0): Releasing backup interface
[  519.957816] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.103926] bond0: (slave eth0): Releasing backup interface
[  524.142900] bond0 (unregistering): Released all slaves