基于supanet的故障恢复研究__网络学位论文.doc

西 南 交 通 大 学 研 究 生 学 位 论 文 Classified Index: TP393.05 U.D.C: 618.14 Southwest Jiaotong University Master Degree Thesis RESEARCH ON RECOVERY based on supanet MAY, 2007摘要 Internet是上一世纪七十年代以文本数据传输为主的应用背景下诞生的网络，因此对正确性要求高，实时性要求低。随着多媒体网络应用数据流在Internet中的增加，使Internet的其所能的服务难以满足新数据流的服务质量的需求成为Internet面临的一大挑战针对现有网络体系结构在服务质量保障方面存在的不足四川省网络通信技术重点实验室提出了单物理层用户数据传输与交换平台体系结构SUPA – Single Physical layer User-data transfer switching Platform Architecture)网络（SUPANET）。SUPA利用带外信令控制思想将用户数据传输平台（U平台）与信控、管理平台（SM平台）相分离，– Ethernet-oriented Physical Frame Timeslot Switching）技术将用户数据传输与交换平台（U-platform）简化为单物理层结构，将服务质量保障机制嵌入平台之中，直接保障用户数据交换的服务质量。信控、管理平台支持服务质量协商、最少跳数（hop）的基于服务质量的波长路径选择(Shortest Path - Lambda QoS Routing, SP-LQR)、呼叫入网控制（CAC）一系列服务质量保障措施和策略，与用户平台的内嵌的服务质量保障机制，共同实现服务质量保障Internet was developed for text-oriented network applications in the 1970s, and it requests correctness of contest without real-time requirement. But with increase of multimedia application traffic in Internet, the “best effort” service provided by Internet does not able to satisfy users’ different QoS requirements and become one of challenges to Internet. Although the Internet communit attempts to improve the technology in the IP level to improve the quality of service, they are RSVP、Integrated Service、Differentiated Service and etc. But the low efficiency of the existing 3-layers user-data switching platform is difficult to insure the QoS of the service. To solve these problems, Sichuan Network Communication Technology Key Laboratory, Southwest Jiaotong University has defined a new network architecture called SUPA (Single physical layer User-data transfer switching Platform Architecture). The SUPA simplifies User-data transfer switching platform (U-platform) into a single physical layer platform by adopting the out-band signaling concept. The key technique enabling the single U-platform is called EPFTS (Ethernet-oriented Physical Frame Timeslot Switching),and guarantee the QoS of the data. SUPA has defi