[  501.181487] bond0: (slave eth0): making interface the new active one
[  501.181581] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.356857] bond0: (slave eth0): Releasing backup interface
[  505.433686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.582522] bond0: (slave eth0): Releasing backup interface
[  509.616534] bond0 (unregistering): Released all slaves