QoS Concepts
Fundamentally, QoS enables you to provide better service to certain flows. This is done by either raising the priority of a flow or limiting the priority of another flow. When using congestion-management tools, you try to raise the priority of a flow by queuing and servicing queues in different ways. The queue management tool used for congestion avoidance raises priority by dropping lower-priority flows before higher-priority flows. Policing and shaping provide priority to a flow by limiting the throughput of other flows. Link efficiency tools limit large flows to show a preference for small flows.
Source
Or maybe, Pioneer Internet is just bad at QOS management? It's not necessarily a case of "congestion avoidance", but deliberate attempts to grant specific types of traffic more bandwidth. Heck, the networks that provide the ISPs with programming may be demanding a particular level of QOS that rural carriers may have trouble configuring.
In a way, all Internet traffic is rationed....via load balancing, packet routing, etc....A fact that always irks me is my 1.5MB DSL line can be "upgraded" to 3.0MB with no change to the physical infrastructure. Huh, just some configuration changes into the network structure.
[edit on 28-4-2008 by MrPenny]


