[  520.646244] bond0: (slave eth0): making interface the new active one
[  520.646327] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.809819] bond0: (slave eth0): Releasing backup interface
[  524.875544] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.041225] bond0: (slave eth0): Releasing backup interface
[  529.080165] bond0 (unregistering): Released all slaves