[  521.179577] bond0: (slave eth0): making interface the new active one
[  521.179668] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.400796] bond0: (slave eth0): Releasing backup interface
[  525.517873] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.692942] bond0: (slave eth0): Releasing backup interface
[  529.722892] bond0 (unregistering): Released all slaves