ATM网络中面向ABR服务的一种流量控制机制  

A Flow Control Mechanism for ABR Service in ATM Networks

作　　者：张孝林[1] 吴介一[1] 朱正强[1] 张飒兵[1] 

机构地区：[1]东南大学CIMS中心,江苏南京210096

出　　处：《电子学报》2002年第4期503-507,共5页Acta Electronica Sinica

基　　金：国家自然科学基金 (No 698962 4 9);江苏省自然科学基金 (No BK 990 1 3)

摘　　要：在ATM网络有效和稳定的运行过程中 ,拥塞控制起着重要的作用 .对此 ,本文提出一种方法来设计基于速率的流量控制机制以便调节ABR服务并有效地控制网络拥塞 .目标是在多个竞争用户间公平分配可用链路带宽、维持瓶颈结点的队列长度在希望值 .该机制基于最小节拍 (DR)控制并具有非常简单的结构 .仿真结果表明 ,该控制机制是公平的并且具有快速收敛。Congestion control plays an important role in the effective and stable operation of ATM networks.This paper proposes an approach to design a rate based flow control mechanism in order to regulate the Available Bit Rate (ABR) traffic and effectively control congestion of the networks.The goal is to share the available link capacity fairly among many competitive users to maintain queue length of a bottleneck node at a desired level.The mechanism uses a Deadbeat Response (DR) controller and has a simple structure.Many simulations show that the mechanism is fair and has the advantages of fast convergence,no oscillation,and high link bandwidth utilization.

关 键 词：ABR服务 流量控制机制 ATM网络 拥塞控制 流量控制 通信网 

分 类 号：TN915.12[电子电信—通信与信息系统]