The original model of existing information networks is that one network supports one main service.To overcome the serious shortcomings of these networks

it is necessary to establish new network architecture and its basic theoretical systems.In this paper

a novel future network—Universal Network is designed by research on switching and routing theories of various current networks.Firstly the accessing identifier

switching-routing identifier and the mapping scheme between them are introduced

and then general switching-routing theory of the new network is created

the Universal Network model and theory are set up accordingly which solve the universal issues of heterogeneous networks besides security and mobility problems.A scheme is also provided to ensure the smoothing transition from existing networks to the Universal Network.Finally

an implementation of the Universal Network is put forward and the corresponding prototype system is designed.Some experiments have been performed and results show that the Universal Network is feasible

effective and reliable.