[  511.634057] bond0: (slave eth0): making interface the new active one
[  511.634125] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.819278] bond0: (slave eth0): Releasing backup interface
[  515.942111] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.103615] bond0: (slave eth0): Releasing backup interface
[  520.138204] bond0 (unregistering): Released all slaves