[  513.418710] bond0: (slave eth0): making interface the new active one
[  513.418781] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.656309] bond0: (slave eth0): Releasing backup interface
[  517.743853] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.946131] bond0: (slave eth0): Releasing backup interface
[  521.987088] bond0 (unregistering): Released all slaves