[  508.685372] bond0: (slave eth0): making interface the new active one
[  508.685462] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.921659] bond0: (slave eth0): Releasing backup interface
[  513.036960] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.207998] bond0: (slave eth0): Releasing backup interface
[  517.245183] bond0 (unregistering): Released all slaves