[  520.619885] bond0: (slave eth0): making interface the new active one
[  520.619976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.822557] bond0: (slave eth0): Releasing backup interface
[  524.905149] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.046309] bond0: (slave eth0): Releasing backup interface
[  529.072247] bond0 (unregistering): Released all slaves