基于Segment Routing的CoLoR域设计与实现

发布时间：2018-05-11 21:11

本文选题：CoLoR原型系统 + SegmentRouting路由机制　；参考：《北京交通大学》2017年硕士论文

【摘要】：互联网已渗入到社会生活的各个方面,用户数量和网络规模呈爆发式增长,导致现有网络暴露出了安全性差、新路由体系难以部署等问题,因此,未来网络体系与关键技术研究受到了越来越多国内外学者的关注。北京交通大学下一代互联网互联设备国家工程实验室承担的国家973计划项目《智慧协同网络理论基础研究》提出了资源动态适配的智慧协同网络体系架构,并根据其设计理念搭建了智慧协同网络的原型系统CoLoR,旨在验证智慧协同网络的可行性。CoLoR允许网络中不同自治域运行不同的路由体系,支持异构网络。本文将Segment Routing(SR)路由机制和CoLoR结合,使SR网络支持CoLoR,构成了 SR-CoLoR域,作为CoLoR原型系统的重要组成部分。因此,本文工作不仅对CoLoR原型系统的构建做出了重要贡献,而且对验证智慧协同网络体系的正确性和可用性具有重要意义。论文主要工作如下:首先,简要介绍了本文背景、意义和相关理论基础,包含CoLoR、SR等。其次,通过分析SR与CoLoR相融合时所需的关键组成部分,对SR-CoLoR系统进行了总体设计,并将其分为控制平面子系统和数据平面子系统。控制平面子系统主要负责路由计算、服务解析和服务注册;数据平面子系统负责域内SR机制和域外CoLoR机制的适配以及数据的转发。同时,对系统的模块进行了设计。再次,基于ClickRouter软件路由平台对SR-CoLoR系统进行了实现。控制平面子系统包括PCE控制器、资源管理器RM,其中PCE控制器包括SR-TE路径计算模块、SL优化模块、SID标签管理模块、感知消息模块四个主要模块;资源管理器RM包括服务注册、服务解析、CoLoR数据包处理模块、SR数据包处理模块四个主要模块。数据平面子系统包括边界路由器、接入路由器、域内SR路由器,其中边界路由器包括数据包分类模块、CoLoR数据包处理模块、SR数据包处理模块、感知消息处理模块、PCEP会话处理模块、检查更新模块等;接入路由器包括数据包分类模块、GET包/REG包处理模块、DATA包处理模块等。最后,在CoLoR原型系统中进行部署,对SR-CoLoR系统进行了功能验证和性能测试。功能验证包括控制平面子系统的路径计算模块、服务解析模块,数据平面子系统各路由器的验证。性能测试包括控制平面子系统的CPU占用率、流量工程等机制的实施,验证了智慧协同网络原型系统与SR的兼容性,利用SR实现CoLoR网络中的流量工程机制,有利于CoLoR在大网中的部署。
[Abstract]:The Internet has penetrated into all aspects of social life, and the number of users and the scale of the network have increased explosively, which has exposed the problems of poor security and difficult deployment of the new routing system. More and more scholars at home and abroad pay attention to the research of network architecture and key technologies in the future. The National Engineering Laboratory of next Generation Internet Interconnection equipment of Beijing Jiaotong University, the National 973 Project "basic Research on the Theory of Intelligent Cooperative Network", puts forward the intelligent cooperative network architecture of dynamic adaptation of resources. According to its design concept, a prototype system of intelligent cooperative network, CoLoR, is built to verify the feasibility of intelligent cooperative network. CoLoR allows different autonomous domains to run different routing systems in the network and supports heterogeneous networks. In this paper, we combine the routing mechanism of Segment routing with CoLoR, and make SR network support CoLoR, forming SR-CoLoR domain, which is an important part of CoLoR prototype system. Therefore, the work of this paper not only makes an important contribution to the construction of CoLoR prototype system, but also has important significance to verify the correctness and usability of intelligent collaborative network system. The main work of this paper is as follows: firstly, the background, significance and related theoretical basis of this paper are briefly introduced, including CoLoR SR and so on. Secondly, by analyzing the key components of SR and CoLoR, the SR-CoLoR system is designed and divided into control plane subsystem and data plane subsystem. The control plane subsystem is mainly responsible for routing computing, service resolution and service registration, while the data plane subsystem is responsible for the adaptation of the SR mechanism and the extraterritorial CoLoR mechanism in the domain and the forwarding of the data. At the same time, the module of the system is designed. Thirdly, the SR-CoLoR system is implemented based on ClickRouter software routing platform. The control plane subsystem includes a PCE controller and a resource manager, wherein, the PCE controller includes a SR-TE path calculation module, a SL optimization module, a Sid tag management module, a aware message module, and a resource manager RM including service registration. Service parsing CoLoR packet processing module SR packet processing module four main modules. The data plane subsystem includes a boundary router, an access router and an in-domain SR router. The boundary router comprises a packet classification module, a CoLoR data packet processing module, a sensing message processing module, and a PCEP session processing module. The access router includes packet classification module get / REG packet processing module and data packet processing module. Finally, the CoLoR prototype system is deployed to verify the function and test the performance of the SR-CoLoR system. Function verification includes path calculation module of control plane subsystem, service resolution module and verification of each router of data plane subsystem. The performance test includes the implementation of the CPU occupancy rate of the control plane subsystem and the implementation of the traffic engineering mechanism. The compatibility of the intelligent collaborative network prototype system with SR is verified, and the traffic engineering mechanism in the CoLoR network is realized by SR. CoLoR in favor of the deployment in the large network.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP393.02

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