摘要
自动交换光网络(ASON)信令的可靠性会直接影响业务的可靠性和服务质量,是信令研究中的一个重要课题。文章研究了基于受限路由的标签分发协议(CR-LDP)和扩展的资源预留协议(RSVP-TE)的可靠性机制。分析、总结了CR-LDP的邻居发现、会话建立和维护,以及RSVP-TE中的软状态、Hello过程及消息传送的具体可靠性扩展机制,并对二者进行了比较。
As one of the key issues in signaling research, the signaling reliability of ASON directly affects the reliability and quality of services. This paper focuses on the reliability mechanisms of ASON signaling protocol. Two protocols, CR-LDP and RSVP-TE, are analyzed and compared. First the adjacency discovery, session creation and maintenance of CR-LDP are introduced and then how RSVP-TE maintains its states, monitors neighbor states and reliably transports messages are analyzed.
出处
《光通信研究》
北大核心
2006年第1期8-10,22,共4页
Study on Optical Communications
基金
国家自然科学基金资助项目(60302026
60132020)
国家"八六三计划"资助项目(2003AA122110)
