[  513.137203] bond0: (slave eth0): making interface the new active one
[  513.137304] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.358457] bond0: (slave eth0): Releasing backup interface
[  517.469976] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.643063] bond0: (slave eth0): Releasing backup interface
[  521.674020] bond0 (unregistering): Released all slaves