[  505.679244] bond0: (slave eth0): making interface the new active one
[  505.679343] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.905727] bond0: (slave eth0): Releasing backup interface
[  509.998519] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.202365] bond0: (slave eth0): Releasing backup interface
[  514.231713] bond0 (unregistering): Released all slaves