[  513.354943] bond0: (slave eth0): making interface the new active one
[  513.355027] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.612035] bond0: (slave eth0): Releasing backup interface
[  517.725080] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.962450] bond0: (slave eth0): Releasing backup interface
[  521.989977] bond0 (unregistering): Released all slaves