Research Of BGP Router's Configuration Load-banlance Policy

The Internet has evolved into a very critical communications infrastructure in the past dozens years,applying sigmificant in economic,education,and social activities.Simultaneously,the Internet communications services have becoming more competitive and end-users are demanding very high quality service from their service providers.Consequently,performance optimization of large scale IP networks.especially public Internet backbones,have become an important problem.Internet routing system today is composed of two parts:intradomain routing and interdomain routing.Inside an automous domain,network managers can get the router topology and control the route.Therefore,the control of the distribution of traffic inside a domain is possible.At the interdomain level on the other hand,the approach used in the Internet is the one of a distributed control of the routing information.Each autonomous system(AS) use border gateway protocol(BGP) to exchange touting information with other ASes.This thesis summarizes the present situation of the application of intradomain traffic engineering and interdomain traffic engineering, Traffic engineering can be classified as inter-domain traffic engineering and intra-domain traffic engineering. They are concerned with different range of Internet and different sides of problems. And inter-domain traffic engineering is inherently more difficult than intra-domain traffic engineering. But they have same general process model. What's more, they depend on each other with tight relations. When the problem of traffic engineering is researched on, they should be considered at the same time. Meanwhile, Optimal BGP route selection on traffic demand is one of the problems in inter-domain traffic engineering. Determining bottleneck area will give important heuristic information to the problem. a bottleneck area predicting algorithm on traffic demand in polynomial time is proposed, which deals with interdomain peering links and inter-radomian links simultaneously.Moreover, this paper also analysis the relationships between the traffic and the bottleneck area, as well as the relationships between the topology and the bottleneck area.At the same time,because the BGP updates and transmate routing information with the mechanism of increment update.the paper bring forward an idea...