[  517.634473] bond0: (slave eth0): making interface the new active one
[  517.634565] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.887824] bond0: (slave eth0): Releasing backup interface
[  522.009767] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.231124] bond0: (slave eth0): Releasing backup interface
[  526.269049] bond0 (unregistering): Released all slaves