[  515.897935] bond0: (slave eth0): making interface the new active one
[  515.898029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.086673] bond0: (slave eth0): Releasing backup interface
[  520.190415] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.383916] bond0: (slave eth0): Releasing backup interface
[  524.423949] bond0 (unregistering): Released all slaves