基于MPLS的VPN技術(shù)原理及其實現(xiàn)

電子通信論文編號:TX176  論文字?jǐn)?shù):14920,頁數(shù):40

目 錄
摘 要  I
Abstract  II
目 錄   III
前 言   1
1 MPLS VPN概述   3
1.1 MPLS技術(shù)   3
1.1.1 MPLS提出的意義   3
1.1.2 MPLS技術(shù)的實現(xiàn)   3
1.1.3標(biāo)簽的分配和分發(fā)  5
1.1.4 MPLS的標(biāo)準(zhǔn)化進展   8
1.2相關(guān)協(xié)議   9
1.2.1 BGP介紹   9
1.2.2 OSPF路由協(xié)議   15
1.3 VPN的發(fā)展  18
1.3.1傳統(tǒng)VPN   19
1.3.2基于MPLS的VPN技術(shù)    21
2  MPLS VPN技術(shù)原理   24
2. 1 MPLS PN體系結(jié)構(gòu) 24
21.1 PE路由器的改造和VRF的導(dǎo)入  24
2.1.2 MP-BGP協(xié)議對VPN用戶路由的發(fā)布  25
2.2 MPLS PN中標(biāo)簽分組的轉(zhuǎn)發(fā)   26
3  MPLS PN配置實例  28
總 結(jié)  37
致 謝 38
參考文獻   39

 摘 要
多協(xié)議標(biāo)簽交換MPLS（Multi-protocol Label Switch）吸收了ATM的VPI CI交換的一些思想，無縫地集成了IP路由技術(shù)的靈活性和2層交換的簡捷性，在面向無連接的IP網(wǎng)絡(luò)中增加了MPLS面向連接的屬性。通過采用MPLS建立“虛連接”的方法，為IP網(wǎng)增加了一些管理和運營的手段。隨著網(wǎng)絡(luò)技術(shù)的迅速發(fā)展，MPLS應(yīng)用也逐步轉(zhuǎn)向MPLS VPN。IP網(wǎng)中，在解決企業(yè)互連，提供各種新業(yè)務(wù)方面，MPLS VPN也越來越被運營商看好，成為在IP網(wǎng)絡(luò)運營商提供增值業(yè)務(wù)的重要手段。由于MPLS VPN的應(yīng)用越來越多，從現(xiàn)在的發(fā)展趨勢看，它很可能成為最主要的VPN技術(shù)，因此有著重要的研究價值。
本文首先對MPLS PN實現(xiàn)的可行性及步驟設(shè)計進行了分析介紹，然后對各個功能模塊進行了設(shè)置調(diào)試，最后進行組裝測試。最后介紹了使用CISCO路由器，進行MPLS PN接入的設(shè)置方法和步驟。

關(guān)鍵詞：虛擬專用網(wǎng) 多協(xié)議標(biāo)簽交換  邊界網(wǎng)關(guān)協(xié)議  路由器 

Abstract
MPLS (Multi-protocol Label Switching) seamlessly integrates the routing technology of IP and the flexibility of two layers of simple exchanges by absorbing some ideas of the ATM VPI exchanges, which also increases the MPLS connection-oriented properties in the connectionless-oriented IP networks. MPLS has added some managements and means of operations to IP network through the establishment of the "virtual connection". As the rapid technological development of the network, and the application of MPLS gradually shifted to MPLS VPN. In the IP network, MPLS VPN also has been showed its great functions to the operators, which can resolve interconnections of the enterprises and provide a wide range of new business, so the operators increasingly attach more and more importance to it, which has been the central means of important value-added business in the IP network. Since the applications of MPLS VPN become more and more broadly, and from the current development trend which is likely to become the dominant VPN technology. And therefore it will have a promising future in the field of the network research.
Firstly the feasibility and design of MPLS VPN was analyzed and introduced in the paper. Secondly all of the modules for configuration and testing for final assembly and testing were expatiated. Finally, the methods and steps of MPLS VPN access by using of Cisco router were expatiated.

Keywords：VPN, MPLS, BGP, Router