[  515.710680] bond0: (slave eth0): making interface the new active one
[  515.710779] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.959526] bond0: (slave eth0): Releasing backup interface
[  520.073853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.254034] bond0: (slave eth0): Releasing backup interface
[  524.283879] bond0 (unregistering): Released all slaves