【正文】 方案 2021 年 9 月 XX 市寬帶 IP網(wǎng)建設(shè)方案 2021 年 9 月 第 2 頁(yè) 共 29頁(yè) 前言 網(wǎng)捷網(wǎng)絡(luò)公司非常榮幸能為 XX 市寬帶網(wǎng)提供解決方案。針對(duì) XX 市的實(shí)際情況，我們推出了全面采用 FOUNDRY 公司產(chǎn)品組成的解決方案，利用屢獲大獎(jiǎng)的 BigIron 8000 第三層交換機(jī)、 BigIron 4000 第三層交換機(jī)和FastIron 交換路由器，組成一套可以在現(xiàn)有光纖系統(tǒng)上提供高速傳輸?shù)木W(wǎng)絡(luò)系統(tǒng)。 本方案采用的骨干設(shè)備是 FOUNDRY BigIron 8000，每臺(tái)有 8 個(gè)網(wǎng)絡(luò)模塊插槽。本方案采用的邊緣設(shè)備是 BigIron 4000，每臺(tái)有 4 個(gè)網(wǎng)絡(luò)模塊插槽。 骨干節(jié)點(diǎn)和邊緣節(jié)點(diǎn)之間用千兆以太網(wǎng)連接。 XX 市寬帶 IP網(wǎng)建設(shè)方案 2021 年 9 月 第 3 頁(yè) 共 29頁(yè) 目錄 第 1章 項(xiàng)目描述 .................................................................................................................................. 5 項(xiàng)目概況 .................................................................................................................................... 5 建設(shè)范圍 .................................................................................................................................... 5 營(yíng)運(yùn)級(jí)寬帶網(wǎng)絡(luò) ........................................................................................................................ 5 第 2章 XX 市寬帶網(wǎng)解決方案 .......................................................................................................... 7 主干技術(shù) .................................................................................................................................... 7 設(shè)備選型 .................................................................................................................................... 7 網(wǎng)絡(luò)主干設(shè)備的系統(tǒng)結(jié)構(gòu) ............................................................................................... 7 （ Switching Fabric） ..................................................................................... 8 阻塞與非阻塞配置 .................................................................................................... 8 3層和第 4層的處理 ................................................................... 9 .........................................................................................................................10 ..........................................................................................................10 .........................................................................................................................10 ...................................................................................................... 11 ..................................................................................................................................12 ............................................................................................................13 ..................................................................................................................13 ..........................................................................................................................13 ..........................................................................................................................14 ......................................................................................................................14 ..........................................................................................................................14 ..................................................................................................................................16 全部第三層功能的主干交換網(wǎng)絡(luò)結(jié)構(gòu) ............................................................................16 ..........................................................................................................16 ..................................................................................................16 良好的網(wǎng)絡(luò)隔離能力 ......................................................................................................17 完善的設(shè)備安全性 ..........................................................................................................18 良好的網(wǎng)絡(luò)穩(wěn)定性 ..........................................................................................................18 ..........................................................................................................19 ..............................................................................................................19 .................................................................................................................19 第 3章 業(yè)務(wù)描述 ................................................................................................................................21 XX 市寬帶 IP網(wǎng)建設(shè)方案 2021 年 9 月 第 4 頁(yè) 共 29頁(yè) 用戶接入 INTERNET .................................................................................................................21 用戶局域網(wǎng)高速互連 ..............................................................................................................23 企業(yè)用戶 VLAN組網(wǎng) ......................................................................................................23 企業(yè)用戶 IP VPN組網(wǎng) ...................................................................................................24 用戶建立網(wǎng)站及其訪問控制 .................................................................................................25 用戶隔離與基本認(rèn)證 ..............................................................................................................25 第 4章 網(wǎng)絡(luò)管理 ................................................................................................................................26 網(wǎng)管中心的設(shè)置和職責(zé) .........................................................................................................26 節(jié)點(diǎn)維護(hù)管理終端 .........................................................................................................26 網(wǎng)管中心的功能 ...........................................................................................................