光突发与光线路混和交换网络的设计与实现-电磁场与微波技术专业论文.docxVIP

improved greatly. In the dissertation, Introduction to the OCS、OPS and OBS is given and their characteristics are described together with the necessity and benefit of the hybrid OBS and OCS switching. Theoretical and experimental research was carried out on the key issues of the hybrid switching. The dissertation is divided into five chapters. The main contents include: Basic technologies for OBS are described in details, including burst assembly, channel scheduling, signaling protocol, and solution for burst conflicts. They serve as important fundamentals to implementation hybrid switching networks. The design scheme of optical hybrid switching networks is presented. The edge/core nodes structures and functions are given. The feasible signaling protocol and control/data packet formats for the edge nodes are proposed as well. The main units constructing a core node are described and node structure is designed. The implementation of hybrid switching based on Linux platform is presented in details. On the bottom IP layer of Linux, we added an extra layer, named hybrid-switching layer, to implement the mechanism of hybrid switching. By using the fast switching fabric developed by our group, an experimental hybrid switching system was configured. It includes three edge nodes and one core node. On this system, FTP data transmission and VOD services are successfully demonstrated. The conclusion for the dissertation is given with prospect for the future research. KEY WORDS: optical burst switching (OBS), optical circuit switching (OCS), edge node, core node, Linux system 目 录 第一章 绪论 1 1.1 引言 1 1.2 全光交换技术概述 3 光线路交换技术 OCS (Optical Circuit Switching) 3 光分组交换技术 OPS (Optical Packet Switching) 4 光突发交换技术 OBS (Optical Burst Switching) 6 1.3 光突发和光线路混合交换的意义和研究现状9 1.4 论文结构 10 第二章 光突发交换基本技术 11 2.1 组装技术12 2.2 信道调度技术16 2.3 控制信令协议 18 2.4 冲突解决机制 20 第三章 光突发与光线路混合交换网络的设计22 3.1 混合交换网络结构22 3.2 边缘节点的结构和功能22 3.3 边缘节点信令和数据格式设计 24 3.3.1 信令协议的设计24 3.3.2 控制包的格式25 3.3.3 数据包格式29 3.4 核心节点总体结构 30 第