[  515.795583] bond0: (slave eth0): making interface the new active one
[  515.795687] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.038149] bond0: (slave eth0): Releasing backup interface
[  520.153076] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.377049] bond0: (slave eth0): Releasing backup interface
[  524.405040] bond0 (unregistering): Released all slaves