北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2000, Vol. 23 ›› Issue (4): 40-44.

• 学术论文 • 上一篇    下一篇

一种新的ATM ABR多点对点拥塞控制算法

张 琳, 赵 鹏, 叶敏华, 张惠民   

  1. 北京邮电大学信息工程学院,北京 100876
  • 收稿日期:2000-03-08 出版日期:2000-12-10
  • 作者简介: 张 琳(1974—),男,山东济南人,博士生.
  • 基金资助:
    国家自然科学基金资助项目(69896243)

A New Multipoint-to-Point Congestion Control Algorithm forATM ABR Service

ZHANG Lin, ZHAO Peng, YE Min-hua, ZHANG Hui-min   

  1. Information Engineering School,Beijing University of Posts and Telecommunications,Beijing 100876,China
  • Received:2000-03-08 Online:2000-12-10
  • Supported by:
     

摘要: ATM网络中可用比特率(ABR)业务类型使用基于速率的闭环端到端拥塞控制方法来控制流量.本文将最大—最小公平扩展到ABR多点对点环境,并提出一种聚合节点处有效的ABR多点对点交换算法。仿真结果证明此算法可以解决AAL5的信元交织问题,实现ABR多点对点速率的公平分配,并且聚合节点处的队列较短.

关键词: 异步转移模式, ABR连接, 最大—最小速率公平分配, 多点对点连接

Abstract: A crucial concern in ABR traffic management for multipoint-to-point connections is how to define fairness within a multicast group,and among multicast groups and unicast connections.Another problem is that AAL5 does not have any provision within its cell format for the interleaving of cells.We extend the max-min fairness to multipoint-to-point environment and propose a new efficient multipoint-to-point switch algorithm at merging point to solve the interleaving problem and allocate bandwidth fairly among multicast sources.The simulation results show that our mechanism provides fair bandwidth allocation and short queue length at wsitch node,while the convergence time is limited.

Key words: ATM, ABR service, max-min fairness, traffic management, multipoint-to-point connections

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