[  503.180079] bond0: (slave eth0): making interface the new active one
[  503.180159] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.363422] bond0: (slave eth0): Releasing backup interface
[  507.440388] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.589415] bond0: (slave eth0): Releasing backup interface
[  511.612328] bond0 (unregistering): Released all slaves