We retired our shaper and purchased Palo Alto devices instead. While these aren't dedicated shapers, since PANOS 4.1 they have all the knobs and integrate with NAC.
To quote from the tech note (which you need a support contract to get). PAN-OS uses Hierarchical Fair Service Curve (HFSC) algorithm for scheduling. The same algorithm is used in most Linux implementations and now in FreeBSD. In simple terms, HFSC provides ability to filter traffic to prioritized queues and limit the associated queue sizes. This with inspection and other bits gives us what we need. --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
