The Research On The Policy Routing Technology Of Communication Grid

Along with the increasing of amount of information, the communication capability of computer network and the quality of service (QoS) are brought forward more requirements. Grid is the compositive environment of computation and resource, namely a computation resource pool. Grid can absorb many resources sufficiently, which would be transformed into a convenient, reliable, normal and economical computation capability. At one time, the policy routing technology processes the rout of data package by defining policies artificially according to some characters of data package, which greatly advances the efficiency and flexibility of network.Firstly, this paper briefly introduces the concept of grid, and puts forward the concept of communication grid. And then GT3 which is the development toolkit of gird service is introduced, which is also used in the experiment. Then this paper particularly introduces the architecture of the integrated access system of communication grid and the policy routing technology based on communication grid, and realizes the policy route in the form of grid service, which can contents the quality of service and the reliable requirement of network security. With the software development, a new method is realized to policy route in the form of grid service.The experiment results show that this grid service can select suitable route algorithm by the different kinds of business services and suitable network topology by the different user's identity and physical position. And then suitable route can be found, which can advance the quality of service. At last, this grid service sufficiently embodies the controllability of network and the flexibility of algorithm in communication grid.