Abstract: New challenges are raised to new opposed object, new combat environment of modern radar system. So the radar system should achieve simultaneous multi-function capability, countermine ability in complex electromagnetic environment and the ability of wideband imaging and identification. With the development of digital technology in radar system, mass data should be transferred in high speed in signal processing architecture. The computational nodes can be exchanged between each other freely. And also the architecture should be reconfigurable. Transmission and Exchange system is the key technology in building real-time processing systems based on wideband and high density computing. A dynamic routing enum algorithm to choose the shortest path is introduced. And it can be used in the network topology for complete exchange system based on RapidIO protocol. To solve the problem in the mesh and multipath network topology for complete exchange system, a concurrent static routing algorithm is proposed in this paper. Thus, the transmission performance and the ability of parallel processing of the system are improved.