[  515.887386] bond0: (slave eth0): making interface the new active one
[  515.887460] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.083438] bond0: (slave eth0): Releasing backup interface
[  520.195848] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.372036] bond0: (slave eth0): Releasing backup interface
[  524.407881] bond0 (unregistering): Released all slaves