Buffer and Throughput Analysis of the Explicit Rate Congestion Control Mechanism for ABR services in ATM networks
نویسنده
چکیده
In this paper we consider ABR traffic which shares an output port of a switch with delay sensitive CBR/VBR traffic. Congestion control of the ABR traflic is achieved by mean? of an Explicit Rate control scheme. Two important performance measurea are evaluated using an analytical model : the ABR-buffer occupancy distribution in the switch and the ABR traffic throughput. We consider two types of ABR traffic sources : persistent (or greedy) sources and on/off sources. Application of the analysis on numerical examples illustrate the influence of the following system characteristics on the performance meamres : (i) distance between the ABR source and the switch, (ii) the variability of the CBR/VBR traffic, (iii) the frequency by which the Allowed Cell Rate of the ABR murce is updated, (iv) duration of idle period of ABR traffic generation. keywords ATM, Traffic Management, Congestion Control, Available Bit Rate, Explicit Rate Congestion Control.
منابع مشابه
Buffer analysis of the explicit rate congestion control mechanism for the ABR service category in ATM networks
In this paper we consider an ABR traac stream which shares an output port of a switch with delay sensitive CBR/VBR traac. Congestion control of the ABR traac is achieved by means of an Explicit Rate congestion control scheme. The occupancy of the ABR-buuer in the switch is analytically evaluated. Application of the analysis on numerical examples illustrates the innuence of the following system ...
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