[  514.086842] bond0: (slave eth0): making interface the new active one
[  514.086942] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.304337] bond0: (slave eth0): Releasing backup interface
[  518.427082] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.657069] bond0: (slave eth0): Releasing backup interface
[  522.689946] bond0 (unregistering): Released all slaves