【正文】 ...................14第 2 章 網(wǎng)絡(luò)改造的需求規(guī)定 ................................................................................................................15 總體目標(biāo) .......................................................................................................................................15 網(wǎng)絡(luò)改造需求 ...............................................................................................................................15 三峽建行局域網(wǎng) ...................................................................................................................15 三峽建行城域網(wǎng) ...................................................................................................................15 廣域網(wǎng)接入 ...........................................................................................................................16 網(wǎng)絡(luò)管理的需求 ...................................................................................................................16 網(wǎng)絡(luò)安全管理需求 ...............................................................................................................16 語音、視頻應(yīng)用的需求 .......................................................................................................17第 3 章 網(wǎng)絡(luò)改造的基本原則 ................................................................................................................18第 4 章 網(wǎng)絡(luò)總體設(shè)計(jì) ............................................................................................................................19 三峽建行網(wǎng)絡(luò)系統(tǒng)改造目標(biāo)總體架構(gòu) .......................................................................................19 組網(wǎng)模式 ...............................................................................................................................19 網(wǎng)絡(luò)總體拓?fù)浣Y(jié)構(gòu)設(shè)計(jì) .......................................................................................................20 局域網(wǎng)改造 ...................................................................................................................................20 局域網(wǎng)改造方案 ...................................................................................................................20 城域網(wǎng)改造 ...................................................................................................................................22 廣域網(wǎng)改造 ...................................................................................................................................23 廣域網(wǎng)分布層改造 ...............................................................................................................23 廣域網(wǎng)接入層改造 ...............................................................................................................24 外網(wǎng)的連接 ...................................................................................................................................25 可靠性設(shè)計(jì) ...........................................................................................................................263 / 58 設(shè)備備份 ...............................................................................................................................26 鏈路備份 ...............................................................................................................................27 網(wǎng)絡(luò) IP 路由設(shè)計(jì) .........................................................................................................................27 面向應(yīng)用的網(wǎng)絡(luò)服務(wù) ...................................................................................................................28 業(yè)務(wù)分類和數(shù)據(jù)特點(diǎn)的分析： ...........................................................................................28 QOS 保證 ...............................................................................................................................28第 5 章 三峽建行網(wǎng)絡(luò)管理設(shè)計(jì) ............................................................................................................30 網(wǎng)管系統(tǒng)功能及其職責(zé) ...............................................................................................................30 網(wǎng)絡(luò)管理平臺(tái)和網(wǎng)管工作站 .......................................................................................................31第 6 章 網(wǎng)絡(luò)系統(tǒng)安全設(shè)計(jì) ....................................................................................................................32 安全模型（P2DR 模型） ............................................................................................................32 三峽建行網(wǎng)絡(luò)系統(tǒng)總體安全體系 ...............................................................................................33 安全策略設(shè)計(jì) .......................................................................................................................33 總體安全體系的規(guī)定 ...........................................................................................................33 三峽建行網(wǎng)絡(luò)級(jí)安全設(shè)計(jì) ..........................................................................................................35 局域網(wǎng)安全設(shè)計(jì) ...................................................................................................................35 廣域網(wǎng)安全設(shè)計(jì) ...................................................................................................................37第 7 章 IP 電話網(wǎng)絡(luò)設(shè)計(jì) .......................................................................................................................40 IP 電話網(wǎng)絡(luò)建設(shè)的必要性 ...........................................................................................................40 IP 電話所使用的幾種技術(shù) ...........................................................................................................40 CISCO 的 VOIP 解決方案 ............................................................................................................41 三峽建行與總行的 VoIP 通信 .............................................................................................42 IP 語音的管理 ...............................................................................................................................43第 8 章 三峽建行視頻會(huì)議設(shè)計(jì) ..........................................................................................