[  503.256196] bond0: (slave eth0): making interface the new active one
[  503.256347] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.425095] bond0: (slave eth0): Releasing backup interface
[  507.494461] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.652328] bond0: (slave eth0): Releasing backup interface
[  511.684287] bond0 (unregistering): Released all slaves