[  514.998657] bond0: (slave eth0): making interface the new active one
[  514.998750] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.260828] bond0: (slave eth0): Releasing backup interface
[  519.373469] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.540092] bond0: (slave eth0): Releasing backup interface
[  523.573978] bond0 (unregistering): Released all slaves