整體網(wǎng)絡(luò)設(shè)計(jì)方案

頁數(shù) 37 字?jǐn)?shù) 17988

摘要
在參與衡陽市政府信息網(wǎng)工程的過程中，以整體網(wǎng)絡(luò)設(shè)計(jì)方案為研究對象，研究了此項(xiàng)目的組網(wǎng)技術(shù)，網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)以及所選用的設(shè)備。
本項(xiàng)目的總體目標(biāo)是建成一個(gè)“一個(gè)中心、內(nèi)外兩網(wǎng)、多平臺、跨部門、互聯(lián)互通、信息共享”的“衡陽市黨政信息網(wǎng)”。
網(wǎng)絡(luò)主干采用千兆以太網(wǎng)，100M到桌面。網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)為星形結(jié)構(gòu)。采用光纖＋雙絞線，光纖到大院、至大樓、至樓層。
整個(gè)網(wǎng)絡(luò)分內(nèi)部網(wǎng)與外部網(wǎng)兩個(gè)部分，兩網(wǎng)兩套線路，物理隔離。兩網(wǎng)中心平臺均設(shè)在市政府新辦公樓七樓網(wǎng)控中心
整個(gè)網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)為星型結(jié)構(gòu)，網(wǎng)絡(luò)中心機(jī)房放置于政府大樓7樓{INTERNET接入點(diǎn)}，它們采用單模光纖連接，其他部門交換機(jī)域網(wǎng)絡(luò)中心機(jī)房之間的物理線路全部采用多模光纖連接。各節(jié)點(diǎn)水平布線系統(tǒng)全部采用超五類五屏蔽雙絞線，綜合部線工程包括信息點(diǎn)359個(gè)，網(wǎng)絡(luò)核心用戶群分為11個(gè)節(jié)點(diǎn)。

關(guān)鍵字 :局域網(wǎng),以太網(wǎng),拓?fù)浣Y(jié)構(gòu),交換機(jī),布線系統(tǒng)。

Abstract
This paper describe the whole program of informational project of the goverment of HengYang, including the technology of network, Top structure of net, the choice of the device,and some of my own experience.
The main target of this program is to build up a information net of communism and goverment which has one centre ,two nets(a internal net and a external net),multiple platforms,and crossing over deparment,interconnecting,information sharing.
The main item of the network employ 1000M Ethernet,100M to desktop.the top stucture of the network is star structure which use fiber and double-cross line.the fiber covers the courtyard,the multi-storied building and the story.
The whole network is made up of internal net and external net which has its own line and phisicalt isolation. The central platform of the two network is set up at net_controlled centre which is on the 7th floor of the new government office building.They are all connected with fiber.the other departments's switchboard of central net room are connected with fiber.Each node's horizontal distribute system all use hyper-utptwisted-pair，The composite distribute project include 359 information nodes, the core net user groups separate into 11 nodes.

Key word: lan, switch, earthnet work, pds,
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