[  513.465203] bond0: (slave eth0): making interface the new active one
[  513.465272] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.724794] bond0: (slave eth0): Releasing backup interface
[  517.853907] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.076039] bond0: (slave eth0): Releasing backup interface
[  522.107937] bond0 (unregistering): Released all slaves