基于軟交換的城域網(wǎng)的設(shè)計(jì)畢業(yè)設(shè)計(jì)論文(已修改)
2025-07-09 21:07 本頁(yè)面
【正文】 蘭州交通大學(xué)課程設(shè)計(jì)蘭州交通大學(xué)本科生課程設(shè)計(jì)中文題目: 光通信網(wǎng)絡(luò)保護(hù)系統(tǒng)的研究 英文題目: Research of Fiber Optic Network Protection System 課程：現(xiàn)代傳輸技術(shù) 學(xué)院：電信學(xué)院 專業(yè)：通信工程 班級(jí)：通信1003班 摘要當(dāng)前，光纜傳輸網(wǎng)已成為我國(guó)通信網(wǎng)和國(guó)民經(jīng)濟(jì)信息基礎(chǔ)設(shè)施的主要部分，是公眾電話網(wǎng)、數(shù)字傳輸網(wǎng)和增值網(wǎng)各種網(wǎng)絡(luò)的基礎(chǔ)。光纜通信網(wǎng)絡(luò)一旦阻斷，將對(duì)社會(huì)造成很壞的影響，給企業(yè)帶來極大的經(jīng)濟(jì)損失。因此，光纜網(wǎng)絡(luò)質(zhì)量的好壞及線路的保護(hù)和恢復(fù)問題越來越引起人們的關(guān)注，也成為市場(chǎng)開放環(huán)境下網(wǎng)絡(luò)運(yùn)營(yíng)商之間在爭(zhēng)奪用戶時(shí)重要的競(jìng)爭(zhēng)焦點(diǎn)。實(shí)現(xiàn)網(wǎng)絡(luò)生存性一般有兩類方法：網(wǎng)絡(luò)保護(hù)和網(wǎng)絡(luò)恢復(fù)。在電信網(wǎng)常規(guī)工作中，常常以保護(hù)機(jī)制作為第一道防線，對(duì)付光纜阻斷之類的公共失效故障。在原已建成的環(huán)狀SDH網(wǎng)中雖然已具備自愈功能，但是因?yàn)槠鋵儆谶壿嬄酚傻那袚Q，而非物理路由的實(shí)際切換，通信量會(huì)累加到另一個(gè)方向。而光纖線路自動(dòng)切換保護(hù)技術(shù)卻能使網(wǎng)絡(luò)進(jìn)行實(shí)際切換，用恢復(fù)機(jī)制作為第二道防線對(duì)付網(wǎng)絡(luò)范圍的故障和失效。 關(guān)鍵詞：SDH；光纖線路自動(dòng)保護(hù)切換；OPL。AbstractSummary of the current, optical transmission network has bee China39。s munications network and the main part of the information infrastructure of the national economy, is the public telephone network, transmission network, and various network based valueadded network. Optical cable munication network once the block will have a bad effect on society, and brought enormous economic losses to the enterprise. Therefore, quality of cable network and circuit protection and recovery issues are cause quality of cable network and circuit protection and recovery issues are cause for concern, into a market under the environment of open petition between network operators in the peting for users important focus. In general there are two types of network survivability: network protection and network recovery. In general working in telemunication networks, often as a first line of defense to protect mechanism, dealing with optical cables, such as blocking a public failure. Although in the original loop SDH network that has been built with selfhealing features, but because it is part of the logical Routing switches, rather than the actual physical routing switches, traffic can add up to another direction. Fiberoptic line autoswitch protection technology can bring the network to the actual switch, use the recovery mechanism as a second line of defense against networkwide fault and failure.Key words: SDH。 fiberoptic line automatic protection switching。OPL.目錄１ 概要
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