The Design Of WAN For State Flood Control Headquarter Project System

《The first phase of State flood control headquarter system project)) was going to construct WAN for the platform providing date transmission. These dates cloud the information of flood control, drought relief, water resource manage, water and soil conservation, etc. The thesis aims at designing the WAN of State flood control headquarter system. The thesis systematically balance and analyzes ATM and IP technology, especially for VoIP and network video technology. And devise a network fusion (audio\date\video) project for the article.In addition, we test the WAN across-the-board.This project pronunciation operational channel uses VoIP connection tradition PBX the network way. Lays aside the VoIP gateway in the hub, each gateway uses the El line and program controlled switch (PBX) carries on the connection. In line design full consideration pronunciation band width demand, moreover when IP voice way design also has made the detailed computation, even if thus has guaranteed when the IP voice call peak or the network breakdown, also cannot let the pronunciation take too many reservations to give the data the band width, the video frequency similarly so. This project besides increase line band width to voice quality guarantee, but also uses each kind of QOS technology to guarantee the telephone conversation effect.The video frequency conference system Ministry of Water Conservation each conference site will carry on the intercommunication through the IP network. Various conference sites may through the wide band wire realization intercommunication, unify the Ministry of Water Conservation internal office automation system to realize the network work. Moreover, in order to unifies the satellite link under video frequency conference system and in the IP network video frequency conference, selects the method which the simulation switches over to realize.The water conservation network cover scope broad, the system constitution is complex, has also designed the network and the system administration tool for this project, realizes to the system and the network management and the monitoring function, the safeguard water conservation system each service application normal operation. Satisfies the fault management, the disposition management, the cost management, the performance management, the safety control and other functions.The distinction test data transmission, the voice quality, the picture quality, and synthesized have tested three kind of services and passed on when the mutual influence. In the contrast analysis test result foundation, put forward the network optimization proposal and the plan.Finally, this article has carried on the summary to the item design and the network movement situation.