[  511.098221] bond0: (slave eth0): making interface the new active one
[  511.098296] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.293992] bond0: (slave eth0): Releasing backup interface
[  515.421833] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.646140] bond0: (slave eth0): Releasing backup interface
[  519.679976] bond0 (unregistering): Released all slaves