The invention relates to 1–2–3–4,5,6,7-R)0. The orifice is provided in one of the walls of the case and has an outer mouth and an inner mouth. The dispensing tube is adapted to move in the dispensing spout when the pump mechanism is actuated. The sliding tube is adapted to manually raise or lower to a plurality of vertical positions relative to the support tube, and the sliding tube is adapted to be locked in a selected one of the vertical positions. A trailing spiral wound section includes a bore that accepts the head of a rattle chamber, cyalume stick, weight or other accessory screwed into the bore. The calculating is based on a least contribution algorithm that reflects an impact of provisioning the target access port with respect to trunk capacity, and is responsive to the target bandwidth requirement, the target class of service and placement of the target port in the VLAN.