计算机技术与发展2012，Vol.22Issue(1)：49-52,58,5.
冗余PW机制的研究与实现
Research and Realization of PW Redundancy Mechanism
摘要
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 STATUS 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 communication nodes' fault,so as to improve the whole reliability of the network communication.关键词
MPLS/PW/冗余/PW切换Key words
MPLS/PW/redundancy/PW switching分类
信息技术与安全科学引用本文复制引用
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,2012,22(1):49-52,58,5.基金项目
国家自然科学基金(60773041) （60773041）
