[  515.710144] bond0: (slave eth0): making interface the new active one
[  515.710367] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.962510] bond0: (slave eth0): Releasing backup interface
[  520.056880] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.245317] bond0: (slave eth0): Releasing backup interface
[  524.272327] bond0 (unregistering): Released all slaves