[  503.559812] bond0: (slave eth0): making interface the new active one
[  503.559892] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.734939] bond0: (slave eth0): Releasing backup interface
[  507.812118] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.958730] bond0: (slave eth0): Releasing backup interface
[  511.988270] bond0 (unregistering): Released all slaves