Just been going through QoS and labbing a few things and have come up with a problem.

When QoS is configured on a service provider ethernet link for instance a 4Mbps symmetric, queuing doesn't seem to work correctly in that most of the congestion control and avoidance mechanisms are based on the depth of the hardware queue. The question is, how to make a 100 base TX link act like a much smaller link in terms of RED and minimum bandwidth allocations. I have set the bandwidth statement however I am constantly seeing the used bandwidth exceeding that amount during testing and upon inspection the queues are showing little or no activity.