[  520.528420] bond0: (slave eth0): making interface the new active one
[  520.528510] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.763682] bond0: (slave eth0): Releasing backup interface
[  524.870630] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.050352] bond0: (slave eth0): Releasing backup interface
[  529.075226] bond0 (unregistering): Released all slaves