[  515.887697] bond0: (slave eth0): making interface the new active one
[  515.887773] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.082757] bond0: (slave eth0): Releasing backup interface
[  520.189869] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.368956] bond0: (slave eth0): Releasing backup interface
[  524.401912] bond0 (unregistering): Released all slaves