期刊文献+

MPLS流量工程最小冲突路径算法 被引量:12

A Least Interference Path Algorithm for MPLS Traffic Engineering
在线阅读 下载PDF
导出
摘要 优化网络资源利用是Internet流量工程的重要目标之一.最小冲突路由机制通过利用多协议标记交换(MPLS)网络中的源-目的(SD)节点对信息,在为业务流请求选择标记交换路径(LSP)时,尽可能避免当前请求与将来请求之间的冲突,实现网络资源的合理利用.作者基于最小冲突机制,提出一种新颖的最小冲突路径算法(LIP).LIP通过简单的最短路径算法定位关键链路,并将链路剩余容量、节点对之间的冲突和竞争结合起来定义链路权重,在实现网络资源高效利用的同时,降低了算法的计算复杂度.实验结果进一步验证,相对于以往算法,LIP在请求带宽拒绝率、网络带宽接收量和LSP平均路径长度等方面都比较理想. Optimizing network resource utilization is one of the important goals for Internet Traffic Engineering. To achieve this goal, Minimum Interference Routing schema is proposed in Multi-Protocol Label Switching network which uses the information regarding the source-destination (SD) pairs to reduce interference between current request and future requests for the establishment of Label Switched Paths (LSP). Based on this schema, the authors propose a novel Least Interference Path (LIP) algorithm. First LIP identifies the critical links by Shortest Path First (SPF) algorithm simply. Then it assigns links weight associated with link residual capacity, interference, and competition on the link of all SD pairs. LIP achieves both high resource efficiency and low computation complexity. Simulation results demonstrate that LIP performs better than the existing algorithms in terms of bandwidth rejection ratio, total available flow of the network, and average length of LSPs.
作者 郑志梅 崔勇
出处 《计算机学报》 EI CSCD 北大核心 2007年第6期934-944,共11页 Chinese Journal of Computers
基金 国家"九七三"重点基础研究发展规划项目基金(2003CB314801) 国家自然科学基金(60403035)资助.
关键词 多协议标记交换 标记交换路径 冲突 关键链路 MPLS LSP interference critical link
作者简介 郑志梅,女,1976年生,硕士研究生,工程师,主要研究方向为计算机网络体系结构、MPLS网络技术和Internet流量工程.E-mail:zzm@csnetl.cs.tsinghua.edu.cn. 崔勇,男,1976年生,博士,副教授,主要研究方向为计算机网络体系结构、协议的仿真和测试、多目标优化的路由算法及其评价.
  • 相关文献

参考文献30

  • 1Xiao X P,Hannan A,Bailey B,Ni L M.Traffic engineering with MPLS in the Internet.IEEE Network,2001,14 (2):28-33
  • 2Awduche D,Chiu A,Elwalid A,Widjaja I,Xiao X.Overview and principles of Internet traffic engineering.RFC3272,2002
  • 3Lagoa C M,Che H,Movsichoff B A.Adaptive control algorithms for decentralized optimal traffic engineering in the Internet.IEEE/ACM Transactions on Networking,2004,12(3):415-428
  • 4Awduche D,Malcolm J,Agogbua J,O'Dell M,McManus J.Requirements for traffic engineering over MPLS.RFC2702,1999
  • 5Swallow G.MPLS advantages for traffic engineering.IEEE Communications Magazine,1999,37(12):54-57
  • 6Gupta A,Kumar A,Thorup M.Routing Ⅱ:Tree based MPLS routing//Proceedings of the 15th Annual ACM Symposium on Parallel Algorithms and Architectures.San Diego,California,USA,2003:193-199
  • 7Jamoussi B,Andersson L,Callon R,Dantu R,Wu L et al.Constraint-based LSP setup using LDP.RFC3212,2002
  • 8Kodialam M,Lakshman T V,Sengupta S.Online multicast routing with bandwidth guarantees:A new approach using multicast network flow.IEEE/ACM Transactions on Networking,2003,11(4):676-686
  • 9Mitra D,Wang Q.Stochastic traffic engineering for demand uncertainty and risk-aware network revenue management.IEEE/ACM Transactions on Networking,2005,13(2):221-233
  • 10Korkmaz T,Krunz M.Bandwidth-delay constrained path selection under inaccurate state information.IEEE/ACM Transactions on Networking.2003,11(3):384-398

同被引文献69

引证文献12

二级引证文献28

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部