[  514.926503] bond0: (slave eth0): making interface the new active one
[  514.926645] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.123796] bond0: (slave eth0): Releasing backup interface
[  519.212958] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.412961] bond0: (slave eth0): Releasing backup interface
[  523.443981] bond0 (unregistering): Released all slaves