IP Metropolitan Area Network Design And Operational Deployment

Gradually in the telecom business transfer to the IP network, IP networks carry more and more the business type of background, this article from the actual start of the network planning to study how to build a stable, multi-service bearer, and with quality guaranteed QOS network.IP backbone network as the core of the entire network, as the MAN on the network level, to assume MAN access the periphery of folding of the exports and the exchange between the metro hub role. The core backbone network backbone equipment requested forwarding performance, reliability, support the diversification of the business had an outstanding performance, at the same time the need for a smooth upgrade of the capacity to adapt to changing customer needs. The backbone of the whole network structure can be divided into two types: "flat hierarchy" and "Flat + space hierarchical structure."How to select protocol? We must think of two facts: the specialty of the protocol and whether or not the technicians know well about the protocol. The specialty of the protocol decide that the IS-IS support more routers in a network and the OSPF is more agility. So please use the IS-IS in the backbone area and use the OSPF in city network.MPLS combined the virtue of ATM and IP. MPLS VPN can offer safety, steady and cosmically network for government, bank... Before we design a MPLS VPN, we must know what's the client needs.The Quality of Service can help us provide different service for different client. I introduced the traffic policing, traffic shaping and limit rate. You can find the particular layout of QOS in this paper.The IP network is more and more powerful, for example play game, video frequency and the NGN. Play game and NGN need network can resume form interrupt in 50ms. The video frequency needs high bandwidth and low delay. When network fail in trouble, how to resume in time? The network designer can think of the logistic layer and the physical layer.As a result of the introduction of new technologies, network management need to provide the operation of the network analysis function. There is also a need to increase the functions of billing data, or provide a complete interface to support the North to build a billing system. In this paper, the commonly used network management and application of the basic analysis done.