[  513.833879] bond0: (slave eth0): making interface the new active one
[  513.833956] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.043037] bond0: (slave eth0): Releasing backup interface
[  518.142226] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.325059] bond0: (slave eth0): Releasing backup interface
[  522.353961] bond0 (unregistering): Released all slaves