[  520.623580] bond0: (slave eth0): making interface the new active one
[  520.623652] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.817898] bond0: (slave eth0): Releasing backup interface
[  524.898673] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.044243] bond0: (slave eth0): Releasing backup interface
[  529.081252] bond0 (unregistering): Released all slaves