[  509.258429] bond0: (slave eth0): making interface the new active one
[  509.258550] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.423131] bond0: (slave eth0): Releasing backup interface
[  513.510447] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.714508] bond0: (slave eth0): Releasing backup interface
[  517.750627] bond0 (unregistering): Released all slaves