[  520.796991] bond0: (slave eth0): making interface the new active one
[  520.797075] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.001998] bond0: (slave eth0): Releasing backup interface
[  525.063398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.228840] bond0: (slave eth0): Releasing backup interface
[  529.260765] bond0 (unregistering): Released all slaves