【正文】 廣西廣電綜合業(yè)務(wù)數(shù)據(jù)網(wǎng)技術(shù)建議書 第 1 頁(yè) 廣西廣電綜合業(yè)務(wù)數(shù)據(jù)網(wǎng) 技術(shù)建議書 廣西廣電綜合業(yè)務(wù)數(shù)據(jù)網(wǎng)技術(shù)建議書 第 2 頁(yè) 目 錄 1 概述 ......................................................................................................................... 4 2 組網(wǎng)方案 ................................................................................................................. 5 現(xiàn)狀 ........................................................................................................... 5 廣域網(wǎng)結(jié)構(gòu) ............................................................................................... 5 網(wǎng)絡(luò)傳輸技術(shù) ........................................................................................... 8 DPT 技術(shù)誕生的背景 ....................................................................... 8 DPT 雙環(huán)介紹 ................................................................................... 9 SRP 協(xié)議介紹 ................................................................................. 11 SRP 數(shù)據(jù)包解析 ............................................................................. 12 SRP 公平算法 ................................................................................. 16 IPS智能保護(hù)交換 ........................................................................ 17 DPT 與 IP 服務(wù)的集成 ................................................................... 18 路由策略 ................................................................................................. 19 自治域設(shè)置 ...................................................................................... 19 路由協(xié)議選擇與路由政策 .............................................................. 20 網(wǎng)間互聯(lián) .......................................................................................... 22 IP 地址分配 ............................................................................................ 23 域名系統(tǒng) ................................................................................................. 24 服務(wù)質(zhì)量保證 ......................................................................................... 25 用戶接入方式 ......................................................................................... 28 Cable Modem 接入方式 .................................................................. 28 以太網(wǎng)專線接入方式 ...................................................................... 30 3 業(yè)務(wù)系統(tǒng)建議 ....................................................................................................... 31 VPN......................................................................................................... 31 VPN 概念 ......................................................................................... 31 MPLS VPN ...................................................................................... 31 GRE VPN......................................................................................... 36 VOIP 業(yè)務(wù) .............................................................................................. 38 VOIP 綜述 ....................................................................................... 38 IP 電話接入方式 ............................................................................. 40 IP FAX.............................................................................................. 40 IDC.......................................................................................................... 41 VoD ......................................................................................................... 43 基本背景 .......................................................................................... 43 產(chǎn)品簡(jiǎn)介 .......................................................................................... 43 典型業(yè)務(wù) .......................................................................................... 48 4 網(wǎng)絡(luò)管理 ............................................................................................................... 52 AISerBase 功能特點(diǎn) .............................................................................. 52 傳統(tǒng)管理功能 .................................................................................. 52 面向業(yè)務(wù)的管理功能 ...................................................................... 53 其他管理功能 .................................................................................. 54 廣西廣電綜合業(yè)務(wù)數(shù)據(jù)網(wǎng)技術(shù)建議書 第 3 頁(yè) AISerBase 的優(yōu)點(diǎn) .................................................................................. 54 5 網(wǎng)絡(luò)安全 ............................................................................................................... 57 全方位立體型安全策略 ......................................................................... 57 廣域網(wǎng)安全策略 .............................................................................. 57 局域網(wǎng)安 全策略 .............................................................................. 57 操作系統(tǒng)安全策略 .......................................................................... 59 應(yīng)用服務(wù)安全策略 .......................................................................... 60 網(wǎng)絡(luò)接入安全策略 .......................................................................... 60 數(shù)據(jù)安全策略 .................................................................................. 61 網(wǎng)絡(luò)系統(tǒng)安全方案 ................................................................................. 63 安全施工措施 ......................................................................................... 64 持續(xù)安全策略 ......................................................................................... 65 6 總結(jié) ....................................................................................................................... 67 廣西廣電綜合業(yè)務(wù)數(shù)據(jù)網(wǎng)技術(shù)建議書 第 4 頁(yè) 1 概述 隨著國(guó)內(nèi) Inter 市場(chǎng)和應(yīng)用的迅速發(fā)展，人們?cè)絹?lái)越多的認(rèn)識(shí)到網(wǎng)絡(luò)對(duì)傳統(tǒng)生活方式的影響，網(wǎng)絡(luò)已經(jīng)漸漸融入企業(yè)的業(yè)務(wù)運(yùn)作和個(gè)人的日常生活中。人們已經(jīng)感覺到網(wǎng)絡(luò)給生活工作帶來(lái)的各種便利。 隨著全民信息化意識(shí)的提高，政 府機(jī)關(guān)、學(xué)校內(nèi)聯(lián)網(wǎng)的建設(shè)已進(jìn)入普及階段，企業(yè)、商業(yè)大廈和部分住宅小區(qū)的局域網(wǎng)建設(shè)已有相當(dāng)?shù)囊?guī)模。 隨著我國(guó)的改革開放、社會(huì)經(jīng)濟(jì)的發(fā)展和科學(xué)技術(shù)的進(jìn)步，我國(guó)的有線電視事業(yè)得到了飛速發(fā)展。全國(guó)的有線廣播電視網(wǎng)的網(wǎng)