[  515.655925] bond0: (slave eth0): making interface the new active one
[  515.656025] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.897115] bond0: (slave eth0): Releasing backup interface
[  520.006359] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.178982] bond0: (slave eth0): Releasing backup interface
[  524.201927] bond0 (unregistering): Released all slaves