[1]陈春玲 毛允亭 张锦跃.冗余PW机制的研究与实现[J].计算机技术与发展,2012,(01):49-52.
 CHEN Chun-ling,MAO Yun-ting,ZHANG Jin-yue.Research and Realization of PW Redundancy Mechanism[J].,2012,(01):49-52.
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冗余PW机制的研究与实现()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年01期
页码:
49-52
栏目:
智能、算法、系统工程
出版日期:
1900-01-01

文章信息/Info

Title:
Research and Realization of PW Redundancy Mechanism
文章编号:
1673-629X(2012)01-0049-04
作者:
陈春玲 毛允亭 张锦跃
南京邮电大学计算机学院
Author(s):
CHEN Chun-ling MAO Yun-ting ZHANG Jin-yue
College of Computer, Nanjing University of Posts and Telecommunications
关键词:
MPLSPW冗余PW切换
Keywords:
MPLS PW redundancy PW switching
分类号:
TP31
文献标志码:
A
摘要:
冗余PW是为了提高故障的自愈能力,通过为两个通信节点部署一条或多条备用PW,主备PW构成一个冗余PW组。网络的拓扑复杂多变,冗余PW的模型也是多样化的,主要有独立模式和主从模式两种。冗余PW切换主要分为外部切换和信令切换。冗余PW的切换是通过信令的交互实现的。PW的建立和维护是通过扩展LDP(label distribution proto.col)协议实现的,其在LDP所定义消息编解码TLV的基础上增加了PW STATUS TLV,该TLV可以在MAPPING消息和Notification消息中携带。研究和实验表明冗余PW机制可以提高通信节点故障的自愈能力,从而提高网络通信的可行性
Abstract:
Redundant PW is to improve the self-healing of fault. By disposing one or more reserve PW for two communication nodes, the redundant PW group is composed by main and reserve PW. Because of complex network, the redundant PW is variety, which is divided into two modes:stand-alone mode and master-slave mode. Redundancy PW switching consists of an external switching and signaling switching. Redundancy PW switching is achieved via signaling interaction. The establishment and maintenance of PW is realized by extending the LDP ( label distribution protocol ), and based on the message encoding and decoding TLV which is defined by LDP, PW STA- TUS TLV is added, which can be carried in the MAPPING and Notification message. Simulation results show that the system of redundancy PW can improve the self-healing of communicatiGn nodes" fault, so as to improve the whole reliability of the network communication

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备注/Memo

备注/Memo:
国家自然科学基金(60773041)陈春玲(1961-),男,江西兴国人,教授,硕士,研究方向为软件技术及其在通信中的应用;毛允亭(1987-),男,山东临沂人,硕士研究生,研究方向为软件技术及其在通信中的应用
更新日期/Last Update: 1900-01-01