Quality of Service is provided to a secure data tunnel such an IPsec tunnel using information about the tunnel and the underlying data session to formulate a set of bandwidth requirements. The swivel first member is pivotally mounted to the clamp via an upper pivot pin and the second swivel member is pivotally mounted to the swivel first member by a second lower pivot pin. The graft is inserted into the aorta and the first end of the graft is connected to the aorta about the aperture in the aorta. The pivotal axis is substantially perpendicular to the vertical oriented shaft. Sensors, actuators, and data transmission devices may also be included.