[  517.383571] bond0: (slave eth0): making interface the new active one
[  517.383671] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.553305] bond0: (slave eth0): Releasing backup interface
[  521.625645] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.784230] bond0: (slave eth0): Releasing backup interface
[  525.805362] bond0 (unregistering): Released all slaves