Research On Multipath Routing Approach And The Application In Vector Network

With the rapid progress of computer science and communication technology, the fully development of Internet makes a great change of people's daily life, meanwhile, the circumstance of Internet has changed a lot too. However, Internet is still based on IP network now, which is one of data communication networks based on original design ways and the method of "no connection, best effort". It could not meet the application command which is eager of QoS (E-banking, E-commerce, IPTV and VOIP etc) . Also with the fast development of Internet, it raises some problems. Firstly, IP address is lack for distributeing. Secondly, routing table in the router becomes too large to deal with, also the security of Internet still has a long way to go.Therefore, next generation network (NGN) is being researched speedily nowadays. NGN should be a safe, reliable and manageable NET. Exhilaratingly, the Vector Network is a net qualified with the NGN demands. Vector Network is a new type of data communication network which is at networking layer of OSI model. The conception of "Vector-Connection" and "Vector-Switching" are raised in the Vector Network which based on Vector-Address, by analyzing the social attribute of the network. The Vector Network encode the number of outputting port in electronic equipment of communication routine, then becoming the switching address of network communication.This paper proposes a method of hierarchical multi-path routing based on amendment cost according to the characteristics of Vector Network, which is based on the classical Dijkstra algorithm. By integrating multi-level routing results, the method achieves multi-path routing in a large-scale network with smaller computational complexity.A hierarchical multi-path routing mechanism is proposed. This architecture by consulting PNNI and OSPF, accords with the fractal characteristic and subnet object-oriented character. This architecture has a tree hierarchical structure. It is constituted of terminal, switch, router and the information exchanging from those nodes, setup from bottom to top. The information exchange between high layer and low layer is across peer group leader in each layer. In function, the transfer plane is separated from the control plane. It sets up the "Vector-Connection" using the two sub-process calling and routing.In short, the Vector Network has broad prospect. The multi-path routing is the necessary function in Vector Connection. Therefore it is worth to research. Finally, the programs are designed based on VC environment. The simulation results show that the programs can achieve a simple and efficient multi-path routing.