基于多拓扑路由的无拥塞快速业务迁移算法

doi:10.11772/j.issn.1001-9081.2015.07.1809

计算机应用 ›› 2015, Vol. 35 ›› Issue (7): 1809-1814.DOI: 10.11772/j.issn.1001-9081.2015.07.1809

基于多拓扑路由的无拥塞快速业务迁移算法

罗龙, 虞红芳, 罗寿西

电子科技大学光纤传感与通信教育部重点实验室, 成都 611731

收稿日期:2015-01-19 修回日期:2015-03-12 发布日期:2015-07-17 出版日期:2015-07-10
通讯作者: 龙(1989-),女,四川成都人,硕士研究生,主要研究方向:网络路由、软件定义网络,longvslong@gmail.com
作者简介:罗虞红芳(1975-),女,浙江萧山人,教授,博士,主要研究方向:网络(及功能)虚拟化、云计算、网络生存性; 罗寿西(1988-),男,四川泸州人,博士研究生,主要研究方向:网络虚拟化、云计算、软件定义网络。
基金资助:
国家自然科学基金资助项目(61271171);国家973计划项目(2013CB329103)。

Congestion avoidance and fast traffic migration based on multi-topology routing

LUO Long, YU Hongfang, LUO Shouxi

Key Laboratory of Optical Fiber Sensing and Communications Education Ministry of China, University of Electronic Science and Technology of China, Chengdu Sichuan 611731, China

Received:2015-01-19 Revised:2015-03-12 Online:2015-07-17 Published:2015-07-10

摘要/Abstract

摘要：

针对IP网络更新引发的业务迁移中潜在的链路拥塞问题,提出一种基于多拓扑路由的无拥塞快速业务迁移(CAFTM-MTR)算法。首先,考虑链路容量约束以及源节点迁移的时序特征,为源节点安排一种无拥塞的迁移顺序;然后,为减少迁移完成时间,基于业务的顺序无关性改进算法,每次批量迁移多个顺序无关的业务。利用多个典型拓扑与Waxman拓扑对提出的算法进行了仿真实验,与不考虑迁移顺序的业务迁移(NonCAFTM-MTR)方法相比,该算法将拥塞避免成功率从20%~60%提高至100%,同时得到8步以内的迁移顺序;此外,该算法具有对动态流量的适应性,能适应5%~284%的业务流量增长。仿真结果表明,CAFTM-MTR算法能够提高避免拥塞风险的成功率并快速地迁移业务。

关键词: 无拥塞, 快速业务迁移, 多拓扑路由

Abstract:

For the potential link congestion problem during traffic migration caused by IP network updates, a Congestion Avoidance and Fast Traffic Migration based on Multi-Topology Routing (CAFTM-MTR) algorithm was proposed. Firstly, the link capacity constraints and the timing characteristic of source node traffic migration were considered, and a congestion avoidance migration sequence that each moves one source node was gotten. Secondly, to shorten the migration finishing time, the algorithm was improved based on the sequence independence of traffics to make each batch move multiple sequence independent traffics. By using typical topologies and Waxman topologies to validate the proposed algorithm, the proposed algorithm improved the success rate of avoiding congestion from 20%-60% to 100% in the comparison experiments with Non-Congestion Avoidance and Fast Traffic Migration based on MTR (NonCAFTM-MTR) method, and obtained less than 8-round migration sequence. In addition, the proposed algorithm had an adaptability of dynamic traffic and was able to accommodate the traffic growth ranging from 5% to 284%. The simulation results show that CAFTM-MTR algorithm can effectively improve the success rate of congestion avoidance, and meanwhile make the traffic migration fast.

Key words: congestion avoidance, fast traffic migration, Multi-Topology Routing (MTR)

中图分类号:

TP393.01

罗龙, 虞红芳, 罗寿西. 基于多拓扑路由的无拥塞快速业务迁移算法[J]. 计算机应用, 2015, 35(7): 1809-1814.

LUO Long, YU Hongfang, LUO Shouxi. Congestion avoidance and fast traffic migration based on multi-topology routing[J]. Journal of Computer Applications, 2015, 35(7): 1809-1814.

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基于多拓扑路由的无拥塞快速业务迁移算法

Congestion avoidance and fast traffic migration based on multi-topology routing

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