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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

期数:

2012年07期

页码:

13-16

栏目:

智能、算法、系统工程

出版日期:

1900-01-01

文章信息/Info

Title:

Dual-link Fiber Disconnected Capacity Planning Algorithm in PTN

文章编号:

1673-629X（2012）07-0013-04

作者:

罗伟¹ 李兴明¹ 吴简¹ 陈捷²

[1]电子科技大学光纤传感与通信教育部重点实验室[2]中兴通讯股份有限公司

Author(s):

LUO Wei ; LI Xing-ming ; WU Jian ; CHEN Jie

[1]The Key Laboratory of Optical Fiber Sensing and Communication of Ministry of Education, UESTC[2]ZTE Corporation

关键词:

分组传送网; 双链路失效; 网络容量规划; 路由重组

Keywords:

PTN ; dual-link failure;  network capacity planning;  re-routing

分类号:

TP393

文献标志码:

A

摘要:

在PTN（PacketTransportNetwork）网络规划建设中，需要对光纤链路留出备份带宽，以保证部分光纤断开时，受影响业务有足够的容量进行路由重组。这也是提高网络生存性的有效方法之一。文中首先遍历网络双链路的失效状态，然后断开网络中任意两条链路，通过逐次增加链路容量来保证失效业务能够重组路由；最后提出二次断纤链路容量规划算法并进行试验仿真。结果表明，该算法在节约网络带宽、降低建造成本以及故障容错方面有着良好性能，能够很好应用于传送网络的链路规划中

Abstract:

In the PTN network planning ＆construction,leaving backup bandwidth for optical fibers is an effective method to improve net- work survivability. It ensures that parts of the fiber links are disconnected, and the affected businesses still have sufficient capacity for re- sources re-routing. In this paper,first look through every network dual-link failure state,then disconnect any two links in the network,af- ter that increase link capacities to assure all failed services can be successfully re-routing again;At last propose the dual-link fiber discon- nected capacity planning algorithm （DDCPA） and carry out simulation experiments. The results show that the algorithm effectively saves network bandwidth, reduces construction cost and improves fault tolerance, also has a good performance in link planning of transmission network

备注/Memo

备注/Memo:

2011中兴通讯基金资助项目（090016）罗伟（1988-），男，四川蓬溪人，硕士研究生，主要研究期方向为宽带网络技术；李兴明，教授，博士生导师，研究方向为网络竞管理、光纤通信、光交换与自动光网络

常用功能

更新日期/Last Update: 1900-01-01