论文总字数:32861字
摘 要
本次课程设计主要讲述了跨区域的MPLS VPN 模型设计,包含了有关MPLS、VPN的基本工作原理、架构设计、MPLS数据包转发机制以及标签交换路径等多方面的内容。
MPLS-VPN的组网架构逐渐形成,其网络具备优良的QoS性能,时延和丢包率都可以满足客户等多方面要求。具有良好的网络经济性能,具有较低的设备中投用的费用、在网络使时用花费更低、整体的网络架构在维护时所使用的费用更低。
MPLS-VPN接入网络时更加简便、可以进行灵活的组网,即,要想实现网络与网络之间的互联互通,只需要将客户的某个分支节点与LSP的PE设配进行连接即可。并且在网络花费上较传统的专线方式具有更加低的优点,因为MPLS-VPN网络架构已经搭建完毕,其他企业网与客户等无须多余花销在搭建网络上。
MPLS-VPN跨协议、跨AS是不同国家ISP相互协作部署VPN必须面临的环境,并且MPLS-VPN在跨区域环境下路由传递具有一定的复杂性。
本文从MPLS-VPN技术及BGP技术的理论研究入手,通过组网规划设计实地研究,结合项目中遇到的难点与经验进一步对理论应用于实际生产工作进行论述和研究。
关键词: 多协议标签转发;MPLS VPN;跨区域; BGP ;虚拟专用网;路由反射器
Design and implementation of a large cross-domain MPLS VPN network based on reflector
Abstract
This course mainly describes the design of cross-regional MPLS VPN model, including the basic working principle of MPLS and VPN, architecture design, MPLS packet forwarding mechanism and label switching path and other aspects of the content.
MPLS-VPN network architecture has gradually formed, its network has excellent QoS performance, delay and packet loss rate can meet customer requirements. Has a good network economic performance, with a lower cost of equipment in use, in the network to use the cost is lower, the overall network architecture in the maintenance of the use of the cost is lower.
MPLS-VPN access to the network is more convenient, can be flexible networking, that is, in order to achieve the interconnection between the network and network, only need to connect a branch node of the customer with the LSP PE configuration. And in the network cost compared with the traditional way of dedicated line has a lower advantage, because the MPLS-VPN network architecture has been built, other enterprise networks and customers do not need to spend extra money on building the network.
MPLS-VPN cross-protocol and cross-AS is an environment that ISPs from different countries must face when collaborating with each other to deploy VPNs, and MPLS-VPN routing in cross-regional environment has a certain complexity.
Starting with the theoretical research of MPLS-VPN technology and BGP technology, this paper further discusses and studies the application of the theory to practical production work through the field study of networking planning and design, combined with the difficulties and experience encountered in the project.
Key words: Multi-protocol tag forwarding; MPLS VPN; Across the region; BGP.; Virtual private network; Route reflector
目 录
摘 要 Ⅰ
Abstract Ⅱ
第一章 引 言 1
1.1 课题研究的目的和意义 1
1.2 本文主要内容 1
1.3 全文结构 1
第二章 MPLS VPN技术概论 3
2.1 MPLS的基本工作原理 3
2.1.1 MPLS的概述 3
2.1.2 MPLS架构中设备的分类 3
2.1.3 MPLS数据包转发与标签交换路径 4
2.2 VPN的入门 4
2.2.1 VPN的演变 5
2.2.2 VPN的分类及比较 5
2.2.3 典型的VPN拓扑 6
2.3 基于MPLS的VPN的实现 7
2.3.1 MPLS/VPN技术架构概述 7
2.3.2 提供商网络中的VPN路由信息的传递 8
2.3.3 VPN数据包转发 8
2.4 MPLS VPN体系结构 10
2.4.1 BGP拓展团体属性 11
2.4.2 接口与VRF的关联 11
第三章 BGP路由技术概论 13
3.1 BGP基本理论 13
3.1.1 BGP基本原理 13
3.1.2 BGP实验 16
3.2 BGP选路原则 17
3.3 BGP路由反射器理论 17
3.3.1 BGP路由反射器原理 17
3.3.2 BGP路由反射器实验 18
3.4 BGP联盟 20
3.4.1 BGP联盟概论 20
3.4.2 BGP联盟实验 22
第四章 IGP路由协议概论 25
4.1 OSPF链路状态协议 25
4.1.1 OSPF理论 25
4.1.2 OSPF实验 27
4.2 ISIS路由协议 28
4.2.1 ISIS理论 28
4.2.2 ISIS实验 29
第五章 MPLS VPN的大型网络设计 32
结 束 语 37
致 谢 38
参考文献 39
第一章 引 言
1.1 课题研究的目的和意义
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