[  514.260787] bond0: (slave eth0): making interface the new active one
[  514.260868] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.422631] bond0: (slave eth0): Releasing backup interface
[  518.506908] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.644403] bond0: (slave eth0): Releasing backup interface
[  522.672428] bond0 (unregistering): Released all slaves