A switching mechanism for ATM ABR traffic control

Many rate control mechanisms for ABR service have been proposed in literatu re, based on heuristics. In this paper, we propose a new rate-based control mechanism for ABR service. A controller that switches between a Rough Adju stment Method (RAM) and a Delicate Adjustment Method (DAM) is used in the m echanism to achieve a fast response as well as stability. The convergence o f the mechanism can still be guaranteed even if there is a large delay in t he system, which is theoretically proven in this paper. Simulation results are used to illustrate the effectiveness of this new mechanism. (C) 2001 El sevier Science B.V. All rights reserved.