Tianjin Institute of Urban Construction 12 +13 floor, the construction of the network earlier, with the level of teaching demand rising 12 +13 floor, the network needs to be improved. 12 +13 House Network is to provide school education resource sharing, information exchange and cooperative work of computer network information systems, As with the previous network users and the growing demand for teaching continues to improve, 12 +13 need to exchange network for network optimization. The program corresponding to the optimal design program, which aims at building the campus network to provide some ideas, make Tianjin Institute of Urban Construction 12 +13 floor of the building to the network of economic, practical, and certain forward-looking, real school teaching, research and management to play the greatest possible efficiency.

天津城市建设学院12+13楼网络建设较早，随着教学需求水平的不断提高，12+13楼网络需要改进。12+13楼网络是为学校教育提供资源共享,信息交流和协同工作的计算机网络信息系统, 原有网络由于随着用户的不断增多和教学需求的不断提高，需要对12+13楼网络进行网络优化。本方案提出了相应的优化设计方案，旨在为校园网的建设提供一些思路，使天津城市建设学院12+13楼的网络构建能够经济、实用，并具有一定的前瞻性，真正为学校的教学、科研、管理发挥尽可能大的效益。
关键词：网络管理；VLAN技术；三层交换；