[  513.388918] bond0: (slave eth0): making interface the new active one
[  513.389014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.659967] bond0: (slave eth0): Releasing backup interface
[  517.770496] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.951142] bond0: (slave eth0): Releasing backup interface
[  521.978557] bond0 (unregistering): Released all slaves