[  513.171909] bond0: (slave eth0): making interface the new active one
[  513.171990] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.410740] bond0: (slave eth0): Releasing backup interface
[  517.518492] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.705513] bond0: (slave eth0): Releasing backup interface
[  521.736790] bond0 (unregistering): Released all slaves