[  511.147306] bond0: (slave eth0): making interface the new active one
[  511.147378] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.350852] bond0: (slave eth0): Releasing backup interface
[  515.438037] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.639009] bond0: (slave eth0): Releasing backup interface
[  519.667920] bond0 (unregistering): Released all slaves