OBS Core Nodes The Control Module BHP Scheduling Processing Design And Implementation

OBS( Optical Burst Switching) is a hotspot of the optical network research. It syncretizes the advantages of OCS( Optical Circuit Switching) and OPS(Optical Packet Switching) and becomes an optical switching technique bright future. But the theory research to the OBS is more than practice research. So without practical usage, OBS is not mature. According to this, base on the studies of numerous theories projects, combining the characteristics of the switching structure that is built in the experiment network, from the practical point of view, this paper mainly studies the switching function of core node control module, proposes the DSP circuit board of mold design project that is uesd in BHP( the Burst Header Packet) ,and the flow of implementing process in the experimental switching structure of the classic switching algorithmses of OBS--the LAUC( the Latest Available Unscheduled Channel) and LAUC-VF( the Latest Available Unscheduled Channel-Void Filling). First, this paper summarizes the technical principle and the network system structure of OBS, then analyzes the concrete model built in the experiment system, explicit the function of the each mold and the processing flow of control signal BHP of the OBS system, and described the function index sign that the system expect to attain, the briefly analyzeds the factor which influences the function. Second, this paper describes the hardware design project of a DSP core node control mold in detail( can pay respects to the electric circuit in the appendix principle diagram), and proposes the interface of DSP mold and the core node control FPGA mold, realizes the conjunction between the molds. Adopt the design method that the FPGA acrosses to the DSP electric circuit ,it can adjust one complicated operation function to hand over to the high-performance DSP chip ,thus can mostly save the hardware resources of the FPGA to lighten the burden of the hardware processing, System function will be highly improved . Finally, this paper describes implement project of two kinds of classic OBS switching algorithmses--LAUC and LAUC-VF in switching structure built in experimental system, proposes BHP, road form and the data structures of the form, resources form, appearance form, the control order word...etc., describes the concrete process of two algorithms, and analyzes the difference...