[  504.745738] bond0: (slave eth0): making interface the new active one
[  504.745829] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.949559] bond0: (slave eth0): Releasing backup interface
[  509.042887] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.232813] bond0: (slave eth0): Releasing backup interface
[  513.263802] bond0 (unregistering): Released all slaves