[  517.184017] bond0: (slave eth0): making interface the new active one
[  517.184099] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.380772] bond0: (slave eth0): Releasing backup interface
[  521.483954] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.668076] bond0: (slave eth0): Releasing backup interface
[  525.699037] bond0 (unregistering): Released all slaves