[  500.412358] bond0: (slave eth0): making interface the new active one
[  500.412473] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.581167] bond0: (slave eth0): Releasing backup interface
[  504.647672] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.811496] bond0: (slave eth0): Releasing backup interface
[  508.844146] bond0 (unregistering): Released all slaves