[  515.157522] bond0: (slave eth0): making interface the new active one
[  515.157609] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.388243] bond0: (slave eth0): Releasing backup interface
[  519.498595] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.679210] bond0: (slave eth0): Releasing backup interface
[  523.720134] bond0 (unregistering): Released all slaves