[  513.115991] bond0: (slave eth0): making interface the new active one
[  513.116061] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.333799] bond0: (slave eth0): Releasing backup interface
[  517.443921] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.617998] bond0: (slave eth0): Releasing backup interface
[  521.645877] bond0 (unregistering): Released all slaves