[  517.020244] bond0: (slave eth0): making interface the new active one
[  517.020320] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.232835] bond0: (slave eth0): Releasing backup interface
[  521.319133] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.464045] bond0: (slave eth0): Releasing backup interface
[  525.501903] bond0 (unregistering): Released all slaves