[  517.694938] bond0: (slave eth0): making interface the new active one
[  517.695032] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.944673] bond0: (slave eth0): Releasing backup interface
[  522.059646] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.234226] bond0: (slave eth0): Releasing backup interface
[  526.260112] bond0 (unregistering): Released all slaves