Research On Construction Project LAN Centralized Management

The main characteristics of construction projects as the industry of constructionenterprises are long project cycle, strongly cross-regional and relatively disperse butthey need concentrative management. Today when international internet develops sorapidly, although it is more difficult to establish the network for constructionenterprises than the ones for other types of enterprises, projects of construction ofcourse do not deserve the channels of fast transmission and chasing the latest relevantinformation. How can we automatically select outgoing internet providers accordingto the visit website with low cost and input and meanwhile consider security, user netflow control and access permission? This thesis combines the actual situations of theapplicant’s working unit and explores how to build an efficient, secure, and flexibleLAN internet concentrative management system.First of all, the thesis comprehensively analyzes the characteristics and actualconditions, and sets the target of building internet according to the requirements ofinternet from the project management and prediction of cost and input.Secondly, the thesis deeply analyzes the LAN construction technology as well asTCP/IP, ARP,MAC,QOS, line automatic selection and points out that ID specificationand improving visit control to the visitors is the main problem of the project LANconcentrative management. Through the analysis on the strength of TCP/IP, ARP,MAC, QOS and IEEE802.11x, the thesis holds that using the above technology andthe LAN management system based on router tactics is the best settlement forconcentrative management of construction enterprise projects, which can realize theline automatic selection, security, users certification, authorization control, and netflow control with the characteristics of high efficiency, high security, transparentmanagement for internal net users.Finally, the thesis presents the design of the project LAN centralizedmanagement system, adopting multiple identity authentication technique based on theuser authorization and access control technology. This system can effectively managethe whole project in the LAN cable, wireless user identity certification, and access topublic network information out of access control management. Through specificapplication in the project management the system can better effectively manage construction project network and reach the expected effect and lower the cost of thenetwork establishment to minimum. The system has also solved congestion problemsdue to partial users downloading data, which can make reasonable use of the limitednetwork resource.