[  513.151892] bond0: (slave eth0): making interface the new active one
[  513.151978] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.354609] bond0: (slave eth0): Releasing backup interface
[  517.467716] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.639678] bond0: (slave eth0): Releasing backup interface
[  521.664577] bond0 (unregistering): Released all slaves