[  515.670894] bond0: (slave eth0): making interface the new active one
[  515.670996] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.901425] bond0: (slave eth0): Releasing backup interface
[  520.014652] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.191106] bond0: (slave eth0): Releasing backup interface
[  524.221064] bond0 (unregistering): Released all slaves