【作者】 刘海玉；

【导师】 徐大雄； 顾畹仪；

【作者基本信息】 北京邮电大学 ， 光学工程， 2007， 硕士

【摘要】 自动交换光网络(ASON)是构建下一代光网络的关键技术，ASON由于引进控制面而赋予光网络以智能化，而作为ASON控制面核心技术之一的路由技术，则成为当前光网络研究领域的重点。光网络路由技术可分为域内路由和域间路由，本论文重点研究ASON域间路由。目前，ASON域间路由在实现方面还没有形成统一的标准，但在ASON域间路由的可选路由协议中，对于运营商内应该优先选择域间分层链路状态路由。光互联论坛(OIF)提出了域到域路由协议(DDRP协议)，DDRP协议是分层链路状态路由协议，满足G7715的路由体系结构，但它本身并不是一个全新的路由协议，而是分别基于OSPF-TE和IS-IS-TE来实现的。目前，光网络域间路由方面的工作尚处在研究阶段，还没有真正的建议标准，但在未来光网络中，互联互通是必然的要求。并且，有些运营商或设备商可能也会基于自身安全的考虑，不会将所有信息都透露给其他的运营商(或设备商)，这就要求在实现域间路由时要屏蔽一些细节信息，如何更好的实现光网络的域间互联，是很重要的研究课题。本论文首先研究了通用域间分层链路状态路由的需求、相关的概念以及运行机制，并在此基础上阐述DDRP协议基于OSPF-TE来实现运营商内的域间路由的实现机制，提出了一种基于OSPF-TE来实现运营商内域间路由的扩展方案，并通过OPNET仿真对其可行性进行了验证。最后，基于对等模型，分析了GMPLS网络与IP／MPLS网络互联存在的问题以及解决方案。更多还原

【Abstract】 Automatically Switched Optical Networks (ASON) is key technology of constructing Next Generation Optical Network. As one of cellar control technologies, routing technology has been the hotspot in optical network researches.Routing in optical network includes intra-domain routing and inter-domain routing, and my researches focus on ASON inter-domain routing. At the present time, there’s no industry standard for ASON inter-domain routing implementation. OIF introduced a hierarchical link state routing protocol named Domain-to-Domain Routing Protocol (DDRP), which meets the requirements of the routing protocol architecture in G.7715. DDRP is not a whole new routing protocol, but based on OSPF-TE and IS-IS-TE.The inter-domain routing in the optical networks is now being researched, and there is no commercial standard available at present. Although it is one of the essential requirements in the future, some providers do not wish to appose all the routing information to their opponents considering security problems. How to implement the inter-operation between optical networks is coming to be an important issue.In this paper, first, the hierarchical link state routing requirements, concepts and mechanisms are researched. Then an OSPF-TE based intra-provider inter-domain routing protocol is developed. And the protocol is simulated on the OPNET platform to prove its feasibility. In the end, the problems in the inter-operation between GMPLS networks and IP/MPLS networks in the peer-to peer model are analyzed, and the solutions are developed.更多还原