摘要:21世紀是一個以網絡為平臺的信息時代，企業信息化已經成為企業重要財富和寶貴資源。只有堅實的計算機網絡基礎設施才能承載信息化的飛速發展，進而推動企業變革、提升企業核心競爭力。構建一個安全可靠、高效實用、管理方便的大型企業網絡已經企業信息化建設成功的關鍵基石。

　　本文對太倉港企業網進行了需求分析，根據分析結果對該企業網絡進行了規劃和設計，并對太倉企業網絡設計中所采用的技術進行了說明，論文還對組網中所涉及的交換機和防火墻等設備進行了詳細的配置，最后就如何保障企業網絡高可用性做了介紹和部署。

　　經過規劃、設計和配置的網絡進行了試運行，運行時間達3600小時左右，未出現網絡故障。運行結果表明：網絡安全和管理策略有效。最后還對網絡方案的擴展性進行了分析。

關鍵字：企業網; 網絡設計與配置; 高可用性; 層次化網絡結構

Abstract:The 21st century has now entered into information age which is on basis of a key platform---Internet. Informationization can be viewed as important assets and treasured resources of modern enterprises. Thus only solid network infrastructures can facilitate rapid growth of informationization and further promote reconstruction of enterprises. Moreover, core competitiveness can be improved. In a word, establishing a large-scale network which is safe, reliable, efficient, practical and convenient to control has been the priority of success for modern enterprises nowadays.  

　During the analysis of the needs of network forming at Taicang port, this thesis creates designs on the basis of the results and configures and gives illustations about the used technology. This thesis also involves detailed configurations of the swith and the fire wall appeared in the net forming. And elaborations and arrangements of how to protect the usability of network are also be shown.   During the past 3,600 hours, no mistakes have happened. Thus a conclusion can be drawn that the applied safety and arrangement strategies are useful and practical. Finally, a brief analysis of expansibility of the plan is expressed clearly.

Key words：enterprise network;  network design and configuration;  high availability;  hierarchical network structure