[  515.647126] bond0: (slave eth0): making interface the new active one
[  515.647193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.856145] bond0: (slave eth0): Releasing backup interface
[  520.025732] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.309919] bond0: (slave eth0): Releasing backup interface
[  524.355935] bond0 (unregistering): Released all slaves