本文72頁，8.68萬余字
摘 要


市場的全球化競爭已成為趨勢。對(duì)于中小企業(yè)來說，在調(diào)整發(fā)展戰(zhàn)略時(shí)，必須考慮到市場的全球競爭戰(zhàn)略，而這一切將以信息化平臺(tái)為基礎(chǔ)，以網(wǎng)絡(luò)通暢為保證。通過建立各種虛擬專網(wǎng)（VPN）和企業(yè)外部網(wǎng)絡(luò)（Extranet），建立企業(yè)全球信息網(wǎng)絡(luò)是未來企業(yè)網(wǎng)絡(luò)應(yīng)對(duì)市場全球競爭的一種策略。
本論文以某企業(yè)新建廠房的局域網(wǎng)規(guī)劃和設(shè)計(jì)為背景，借助計(jì)算機(jī)網(wǎng)絡(luò)原理及網(wǎng)絡(luò)規(guī)劃技術(shù)，從企業(yè)局域網(wǎng)的概念及相關(guān)計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)入手，比較詳細(xì)地設(shè)計(jì)出了該企業(yè)網(wǎng)建設(shè)的實(shí)施方案及建設(shè)規(guī)劃,以期達(dá)到先進(jìn)、安全、實(shí)用、可靠的目標(biāo). 論文對(duì)該企業(yè)的組網(wǎng)需求進(jìn)行了分析，比較各種組網(wǎng)技術(shù)，從實(shí)用角度論述了局域網(wǎng)主干網(wǎng)選擇，綜合布線，各種設(shè)備選擇，網(wǎng)絡(luò)安全，網(wǎng)絡(luò)管理等方面。文中參照了當(dāng)前諸多企業(yè)局域網(wǎng)和校園網(wǎng)絡(luò)方面的相關(guān)組網(wǎng)形式和成熟的網(wǎng)絡(luò)技術(shù)，該方案基本達(dá)到了預(yù)期的目標(biāo).

關(guān)鍵詞：交換機(jī)、路由器、千兆以太網(wǎng)、網(wǎng)絡(luò)安全、拓?fù)浣Y(jié)構(gòu)、拓?fù)鋱D。
Abstract
The market globalization competition has become the tendency. Regarding the small and medium-sized enterprise, when the adjustment developmental strategy, must consider the market the global competition strategy, but all these take the informationization platform as a foundation, take the network unobstructed as the guarantee. Through establishes each kind of hypothesized special net (VPN) and enterprise exterior network (Extranet), will establish the enterprise whole world information network is the future enterprise network should to the market global competition one kind of strategy.
The present paper take some enterprise newly built workshop local area network plan and the design as a background, with the aid of the computer network principle and the network planning technology, from the enterprise local area network concept and correlation computer network technology obtaining, compared with in detail designed the implementation plan and the construction plan which this enterprise network constructed,Achieves advanced, safe, practical, the reliable goal by the time. The paper has carried on the analysis to this enterprise's network demand, compared with each kind of network technology, elaborated the local area network backbone network choice from the practical angle, comprehensive wiring, each kind of equipment choice, network security, aspects and so on network management. In the article has referred to the current many enterprise local area network and the campus network aspect related network form and the mature networking, this plan has achieved the anticipated goal basically.

Key word: Switchboard, Router, Milliardfold ethernet, Network security, Topology architecture, Topology graph.


目 錄

前 言 ······················································································································6
第一章 中小企業(yè)網(wǎng)絡(luò)建設(shè)現(xiàn)狀及未來··································································7
1.1 我國中小企業(yè)網(wǎng)絡(luò)建設(shè)現(xiàn)狀分析····························································7
1.1.1 面臨的挑戰(zhàn)························································································7
1.1.2 尋求進(jìn)一步發(fā)展··············································································7
1.2 我國中小企業(yè)網(wǎng)絡(luò)應(yīng)用核心－電子商務(wù)················································8
第二章 需求分析·····································································································11
2.1 項(xiàng)目簡述···································································································11
2.2 總體建設(shè)目標(biāo)···························································································11
2.3 設(shè)計(jì)原則、目標(biāo)以及詳細(xì)方案簡介·······················································11
2.3.1. 設(shè)計(jì)原則·························································································12
2.3.2 網(wǎng)絡(luò)系統(tǒng)建議方案·········································································12
第三章 交換與路由·································································································14
3.1 交換和路由的概念···················································································14
3.1.1 網(wǎng)絡(luò)層次結(jié)構(gòu)·················································································14
3.1.2 交換·································································································15
3.1.3 路由·································································································16
3.1.4 全交換園區(qū)網(wǎng)絡(luò)·············································································17
3.2 第三層交換·······························································································18
3.2.1 什么是三層交換·············································································18
3.2.2 三層交換原理·················································································18
3.2.3 三層交換機(jī)種類·············································································18
3.3 交換機(jī)Catalyst 3550············································································20
3.3.1 主干或機(jī)架堆疊頂層的高性能路由 ···········································20
3.3.2 增強(qiáng)的服務(wù)質(zhì)量·············································································21
3.3.3 完善的流量管理·············································································22
3.3.4 Cisco集群管理套件（CMS）························································22
3.4 網(wǎng)絡(luò)的核心Cisco Catalyst 4006························································23
3.4.1 具有服務(wù)質(zhì)量和成熟流量管理功能的智能化網(wǎng)絡(luò)服務(wù)·············24
3.4.2 增強(qiáng)的性能和可擴(kuò)展性·································································24
3.4.3 集成化的Cisco IOS交換解決方案·············································25
3.4.4 簡便的可管理性·············································································25
3.4.5 全面的安全性·················································································25
3.4.6 4006路由功能的配置····································································26
第四章 千兆以太網(wǎng)技術(shù)要點(diǎn)·················································································28
4.1 快速以太網(wǎng)技術(shù)·····················································································28
4.1.1 快速以太網(wǎng)（FAST ETHERNET）歷史···········································28
4.1.2 100M以太網(wǎng)和其他高速網(wǎng)絡(luò)技術(shù)的比較····································28
4.1.3 100M快速以太網(wǎng)技術(shù)····································································29
4.2 千兆以太網(wǎng)技術(shù)·····················································································30
4.2.1 千兆以太網(wǎng)及其發(fā)展現(xiàn)狀·····························································30
4.2.2 千兆以太網(wǎng)的特點(diǎn)·········································································31
4.2.3 千兆以太網(wǎng)的構(gòu)建·········································································31
4.2.4 千兆以太網(wǎng)國際標(biāo)準(zhǔn)·····································································32
4.2.5 如何升級(jí)至千兆以太網(wǎng)·································································33
4.2.6 千兆以太網(wǎng)的前景預(yù)測·································································33
4.3 5類線實(shí)現(xiàn)千兆以太網(wǎng)··········································································33
4.3.1 1000BASE-T在第五類雙絞線上實(shí)現(xiàn)的千兆以太網(wǎng)····················34
4.3.2 千兆以太網(wǎng)媒質(zhì)規(guī)范·····································································35
第五章 綜合布線及接入技術(shù)·················································································36
5.1 綜合布線簡介···························································································36
5.2 綜合布線系統(tǒng)的設(shè)計(jì)原則·······································································36
5.2.1 用戶至上原則·················································································36
5.2.2 先進(jìn)性·····························································································36
5.2.3 靈活性和可擴(kuò)展性·········································································36
5.2.4 標(biāo)準(zhǔn)化和擴(kuò)展性·············································································36
5.2.5 經(jīng)濟(jì)性························· ···································································37
5.3 綜合布線的設(shè)計(jì)·······················································································37
5.3.1 工作區(qū)子系統(tǒng)的設(shè)計(jì)·····································································37
5.3.2 水平子系統(tǒng)的設(shè)計(jì)·········································································37
5.3.3 垂直干線子系統(tǒng)的設(shè)計(jì)·································································37
5.3.4 分配線間的設(shè)計(jì)·············································································38
5.3.5 主配線間的設(shè)計(jì)·············································································38
5.3.6 綜合布線系統(tǒng)接地設(shè)計(jì)·································································38
5.3.7 綜合布線系統(tǒng)的等級(jí)·····································································39
5.4 企業(yè)綜合布線各子系統(tǒng)設(shè)計(jì)實(shí)施方案···················································39
5.4.1 工作區(qū)子系統(tǒng)·················································································39
5.4.2 水平干線系統(tǒng)·················································································39
5.4.3 管理子系統(tǒng)·····················································································39
5.4.4 設(shè)備間子系統(tǒng)·················································································39
第六章 網(wǎng)絡(luò)接入技術(shù)選擇·····················································································40
6.1 現(xiàn)有網(wǎng)絡(luò)接入方式簡介·············································································40
6.1.1 PSTN撥號(hào): 使用最廣泛································································40
6.1.2 ISDN撥號(hào)：通話上網(wǎng)兩不誤························································41
6.1.3 DDN專線: 過去企業(yè)主要選擇······················································41
6.1.4 ADSL: 個(gè)人寬帶流行風(fēng)·································································42
6.1.5 VDSL: 更高速的寬帶接入·····························································42
6.1.6 Cable-modem: 用于有線網(wǎng)絡(luò)·······················································43
6.1.7 無源光網(wǎng)絡(luò)接入: 光纖入戶·························································43
6.1.8 LMDS接入: 無線通信····································································44
6.1.9 LAN:技術(shù)成熟成本低·····································································45
6.2 接入網(wǎng)絡(luò)類型的選擇···············································································45
6.2.1 光纖與Cable Modem的比較···························································46
6.2.2 光纖與普通撥號(hào) Modem及N-ISDN的比較··································46
第七章 VLAN與VPN的簡介及應(yīng)用········································································47
7.1 VLAN簡介及實(shí)現(xiàn)方法··············································································47
7.2 在4006上配置VLAN················································································48
7.2.1 可支持的VLAN················································································49
7.3 VPN的簡介及應(yīng)用····················································································52
7.3.1 VPN帶來的好處··············································································53
7.3.2 VPN使用的協(xié)議··············································································53
7.3.3 VPN的身份驗(yàn)證方法······································································54
7.3.4 VPN的加密技術(shù)··············································································55
第八章 服務(wù)器和網(wǎng)絡(luò)安全·····················································································56
8.1 服務(wù)器選型·······························································································56
8.2 核心服務(wù)器選擇·······················································································56
8.3 硬件防火墻·······························································································58
8.4 Cisco PIX500系列防火墻······································································60
8.5 在路由器端進(jìn)行訪問控制·······································································60
參考文獻(xiàn)···················································································································61
致謝···························································································································62
附錄···························································································································63
1．網(wǎng)絡(luò)拓?fù)鋱D
2．大概費(fèi)用列表
3.中英文翻譯


參考文獻(xiàn)
1.程光.Internet基礎(chǔ)與應(yīng)用.清華大學(xué)出版社,2006.
2.陳少紅.計(jì)算機(jī)網(wǎng)絡(luò)基礎(chǔ).清華大學(xué)出版社，2006.
3.余青松.網(wǎng)絡(luò)實(shí)用技術(shù).清華大學(xué)出版社，2006.
4.馬秀麟.計(jì)算機(jī)應(yīng)用基礎(chǔ).清華大學(xué)出版社，2005.
5.黃永峰等.計(jì)算機(jī)網(wǎng)絡(luò)教程.清華大學(xué)出版社，2006.
6.湯毅堅(jiān).計(jì)算機(jī)局域網(wǎng)—網(wǎng)絡(luò)原理與性能評(píng)價(jià).人民郵電出版社，1989.
……………………………………………………………………………………………………