一种部分共享输出缓存的 ATM 交换系统性能分析

Performance Analysis of a ATM Switch System with Partial Share Output Buffer

涉及一个支持Ｂ－ＩＳＤＮ业务的服务质量（ＱｏＳ，ＱｕａｌｉｔｙｏｆＳｅｒｖｉｃｅ）问题。为保证系统的服务质量（ＱｏＳ），应对其中业务划分不同等级。我们提出一种ＡＴＭ交换网络的缓存管理机制即部分共享输出缓存方法。采用无优先和优先两种控制策略，分别分析了无优先级、高优先级和低优先级三种业务信元的信元丢失率和时延。结果表明本文所提方法可有效地控制信元的信元丢失率和时延性能。

This paper deals with the QoS of B ISDN service. The ATM switch should divide different classes for guaranteeing the QoS of system. The buffer management mechanism(partial share output buffer) is presented. No priority and priority scheme are adopted.The cell loss probability and the delay are analyzed for no priority, high priority and low priority services. Results show that thae proposed ATM switch can control the performance of system effectively.