[  501.984800] bond0: (slave eth0): making interface the new active one
[  501.984899] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.199719] bond0: (slave eth0): Releasing backup interface
[  506.286481] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.492400] bond0: (slave eth0): Releasing backup interface
[  510.532395] bond0 (unregistering): Released all slaves