[  515.930558] bond0: (slave eth0): making interface the new active one
[  515.930659] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.083149] bond0: (slave eth0): Releasing backup interface
[  520.171141] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.374265] bond0: (slave eth0): Releasing backup interface
[  524.413211] bond0 (unregistering): Released all slaves