[  515.188664] bond0: (slave eth0): making interface the new active one
[  515.188762] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.457142] bond0: (slave eth0): Releasing backup interface
[  519.575598] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.736015] bond0: (slave eth0): Releasing backup interface
[  523.770909] bond0 (unregistering): Released all slaves