[  517.073737] bond0: (slave eth0): making interface the new active one
[  517.073825] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.303420] bond0: (slave eth0): Releasing backup interface
[  521.421367] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.595034] bond0: (slave eth0): Releasing backup interface
[  525.627920] bond0 (unregistering): Released all slaves