Abstract:

The differentiated service (DiffServ) architecture does not specify any scheme of priority between assured forwarding (AF) out-profile packets and best effort (BE) packets. In order to avoid misbehaving AF flows occupying excessive bandwidth, a simple core-stateless queue management scheme, named TD&BF, was proposed, which not only guarantees the committed rates of AF flows but also fairly allocates remained bandwidth between the BE and AF flows. Analysis and simulation results showed that the proposed scheme was highly effective and efficient.

Key words: differentiated service；assured forwarding；best effort, committed rate