A Load Balancing Scheme of Minimum Buffers for Scalable Switches

LI Hui; LIN Liang-min; HUANG Jia-qing; WANG Wei; AN Hui-yao; WANG Bin-qiang

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A Load Balancing Scheme of Minimum Buffers for Scalable Switches

更新时间：2025-07-16

- A Load Balancing Scheme of Minimum Buffers for Scalable Switches
- Acta Electronica Sinica Vol. 37, Issue 11, Pages: 2367-2372(2009)
- 作者机构：
  
  1. 北京大学深圳研究生院集成微系统重点实验室,广东,深圳,518055
  2. 上海北京大学微电子研究院,上海,201203
  3. 华中科技大学电子与信息工程系,湖北,武汉,430074
  4. 信息工程大学,国家数字交换系统工程技术研究中心,河南,郑州,450002
  5. 北京大学深圳研究生院集成微系统重点实验室广东深圳,518055
  6. 上海北京大学微电子研究院上海,201203
  7. 华中科技大学电子与信息工程系湖北武汉,430074
  8. 信息工程大学国家数字交换系统工程技术研究中心河南郑州,450002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP393TN256
- Published：2009
- 稿件说明：
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LI Hui, LIN Liang-min, HUANG Jia-qing, et al. A Load Balancing Scheme of Minimum Buffers for Scalable Switches[J]. Acta Electronica Sinica, 2009, 37(11): 2367-2372.
DOI：

LI Hui, LIN Liang-min, HUANG Jia-qing, et al. A Load Balancing Scheme of Minimum Buffers for Scalable Switches[J]. Acta Electronica Sinica, 2009, 37(11): 2367-2372. DOI：

摘要

对两级自路由交换结构

提出了一种新的分割聚合流的负载均衡方法.该方法通过群组集线器对输入输出线进行分组以获得统计复用的优点并减少接入控制计算的复杂度

并对输入输出及中间端口进行缓存结构的优化设计以实现分组线速转发并降低缓存的复杂度.理论分析和仿真结果表明

对于任意允许的流量模式

可以达到100％的吞吐率.与其它负载均衡交换方法相比

本方法具有最低的缓存复杂度

O(N)

很小的固定排队延迟O(1).

这些特性使之在下一代网络中更适合超大规模的分组交换结构.

Abstract

Load-balanced Split Aggregated Flow (LB-SAF) scheme was proposed for two-stage load-balanced self-routing switching structures.By grouping the signal lines with self-routing concentrators

this scheme obtained statistical multiplex gain and reduced the computing complexity for call admission control;moreover

optimal buffer design at line group of each stage achieved wire-speed forwarding and reduced the buffer complexity.Mathematical analysis and simulations show that it can guarantee 100% throughput for any admissible traffic pattern.Compared with other previous proposed schemes

LB-SFA has properties such as lower buffer complexity of

O(N)

and small constant queuing delay of

(1).These advantages make it more suitable for very large scale switching structures in Next Generation Network (NGN).

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