[  515.765905] bond0: (slave eth0): making interface the new active one
[  515.765990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.961812] bond0: (slave eth0): Releasing backup interface
[  520.076178] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.244139] bond0: (slave eth0): Releasing backup interface
[  524.270005] bond0 (unregistering): Released all slaves