[  520.662322] bond0: (slave eth0): making interface the new active one
[  520.662430] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.809971] bond0: (slave eth0): Releasing backup interface
[  524.886645] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.036426] bond0: (slave eth0): Releasing backup interface
[  529.062380] bond0 (unregistering): Released all slaves