[  520.731286] bond0: (slave eth0): making interface the new active one
[  520.731354] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.872731] bond0: (slave eth0): Releasing backup interface
[  524.930711] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.105836] bond0: (slave eth0): Releasing backup interface
[  529.147897] bond0 (unregistering): Released all slaves