目 錄


摘要 ………………………………………………………………………………………………1
Abstract…………………………………………………………………………………………1
1引言……………………………………………………………………………………………1
2 高速公路建設(shè)的發(fā)展現(xiàn)狀……………………………………………………………………2
2.1高速公路建設(shè)的現(xiàn)狀………………………………………………………………………2
2.2高速公路建設(shè)的發(fā)展趨勢…………………………………………………………………3
3福建省幾種主要運輸方式的現(xiàn)狀與特點分析………………………………………………3
3.1公路運輸……………………………………………………………………………………4
3.1.1公路運輸?shù)膬?yōu)點 …………………………………………………………………………4
3.1.2公路運輸存在的主要問題………………………………………………………………4
3.2鐵路運輸……………………………………………………………………………………5
3.2.1鐵路運輸?shù)膬?yōu)點………………………… ………………………………………………5
3.2.2鐵路運輸存在的主要問題………………………………………………………………5
3.3水路運輸……………………………………………………………………………………6
3.4航空運輸……………………………………………………………………………………6
4高速公路建設(shè)的快速發(fā)展對我省物流業(yè)的影響……………………………………………7
4.1對物流業(yè)運輸成本的影響…………………………………………………………………8
4.2對公路物流業(yè)運輸量和運輸結(jié)構(gòu)比例的影響……………………………………………9
4.3 對公路物流業(yè)運輸速度的影響…………………………………………………………10
4.4 對公路物流業(yè)運輸效率的影響…………………………………………………………10
5結(jié)束語………………………………………………………………………………………11
參考文獻………………………………………………………………………………………11
致謝 ……………………………………………………………………………………………13





XD企業(yè)網(wǎng)絡(luò)設(shè)計

摘要：現(xiàn)今的計算機網(wǎng)絡(luò)技術(shù)飛速發(fā)展，使用網(wǎng)絡(luò)進行信息傳輸已成為社會運行的一種基本方法。隨著辦公信息化、自動化的需求，各企業(yè)為提高辦公效率，促進信息交流，適應(yīng)現(xiàn)代化辦公的要求，企業(yè)網(wǎng)絡(luò)的建設(shè)是企業(yè)向信息化發(fā)展的必然選擇，企業(yè)網(wǎng)絡(luò)系統(tǒng)是一個非常龐大而復(fù)雜的系統(tǒng)，它不僅為現(xiàn)代化企業(yè)綜合管理和辦公自動化等一系列應(yīng)用提供基本操作平臺，而且能提供多種應(yīng)用服務(wù)，使信息能及時、準確地傳送給各個系統(tǒng)。這直接關(guān)系到企業(yè)能否獲得關(guān)鍵的競爭優(yōu)勢。本論文的主要目標是根據(jù)XD公司的局域網(wǎng)建設(shè)需求為背景，以計算機網(wǎng)絡(luò)技術(shù)為基礎(chǔ)，設(shè)計出該企業(yè)組網(wǎng)建設(shè)的規(guī)劃設(shè)計方案。因此本論文著重從需求分析、企業(yè)網(wǎng)絡(luò)的拓撲結(jié)構(gòu)、設(shè)備的選型、網(wǎng)絡(luò)安全設(shè)計、路由設(shè)計等方面進行了分析，并給出具體的方案。

關(guān)鍵詞：Internet技術(shù) 企業(yè)網(wǎng) 拓撲結(jié)構(gòu) 訪問控制 VLAN

Abstract：The current rapid development of computer network technology,the use ofinformation transmission networke has become a basic way of operation. With the office of information and automation needs of various units to improve the office efficiency and facilitate the exchange of information. toadapt to modem office requirements. Enterprise development is the developmentof enterprise information necessary to select the enterprise network system is avery large and complex system , it not only for enterprise modemization,integrated information managerment and office automation applications such asa series of provide basic operating tlatform, but also offers a variety ofapplications , so that the information timely and accurately transmittend to the various systems . The directly related to enterprise access to key competitive.The plan’s main goal is the xide company’s LAN construction according to needs as a background, based on the computer network technology as thefoundation. A detailed out the enterprise network construction planning designscheme.Therefore this graduation design emphatically from the demand analysis,the enterprise network topology, equipment selection, network security design, routing design were analyzed and described, and the specific design scheme is presented.
Key words：Internet technology；Enterprise nets；Topology；Access control；Vlan