Rate-Based Congestion Control for ATM Networks


Congestion control plays an important role in the effective and stable operation of ATM networks. This paper first gives a historical overview of rate-based congestion control algorithms developed in the ATM Forum, showing how the current ATM Forum standard regarding the traffic management control methods is exploited, by these algorithms. Then, analytical approach is used to quantitatively evaluate their performance and show the effectiveness of the rate-based approach. In presenting the numerical examples, we emphasize that appropriate control parameter settings are essential for proper traffic management in an ATM network environment. 1 Introduction The capability of ATM (Asynchronous Transfer Mode) networks to provide large bandwidth and to handle multiple quality of service (QOS) guarantees can only be realized by preparing effective traffic management mechanisms [1]. Traffic management includes congestion control, call admission control, and virtual path (VP)/virtual channel (VC..

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