按队长周期性设置EFCI的ABR流量控制算法

An ABR flow control algorithm with ability of periodically setting EFCI according to queue length

本文提出了一种新的基于EFCI的ABR流量控制算法 ,它的基本思想是扩展EFCI的功能 ,使其不仅反映网络阻塞状况 ,而且还反映网络排队状况。在交换机中通过周期性设置EFCI来传递网络的排队信息。仿真结果表明 ,本文提出的算法比基本EFCI算法具有更好的控制行为 ,减小了ACR和排队长度的振荡幅度 ,提高了链路利用率 。

In this paper we present a new EFCI based ABR flow control algorithm The main idea of this algorithm is to extend EFCI’s function,and makes it not only indicate the congestion status,but also indicate the queue status The transfer of queue length information is implemented by periodically setting EFCI The result of simulation indicates that the new algorithm has better control behavior than basic EFCI algorithm It has lower oscillation amplitude of ACR and queue length,higher link utilization,and better cost/performance