采用HSPO控制策略的共享存储器ATM交换机近似解析

Approximate Performance Analysis of Shared Buffer ATM Switches Using HSPO Mechanism

本文对非均匀业务下共享存储器ATM交换机采用热点推出 (HSPO)优先级控制策略方案建立了系统模型 .文章通过排队理论对系统模型进行了数学解析 ,推导出系统性能重要参数 信元丢失率、平均信元延迟、吞吐率等的计算公式 ,并通过数值分析对系统性能进行了考察和评价 .此外 ,通过与仿真结果的比较验证了数字解析的正确性和合理性 .

The priority control method, called Hot-Spot Push Out (HSPO), is used for analyzing the performance of shared buffer ATM switches under a non-uniform traffic. The system performance model is theoretically analyzed and the important calculating formulas of the system performance parameters, such as cell loss ratio, mean cell delay, throughput etc, are derived based on queueing theory. The system performance is examined by numerical analysis. In addition, the results compared with simulation show that the theoretical analysis is correct and reasonable.