METHOD FOR ESTABLISHING AND CONTROLLING DISTRIBUTED PATH IN ATM SWITCHING SYSTEM COMPOSED OF MULTI-STAGE SWITCHES

摘要

1. TECHNICAL FIELD OF THE INVENTION;A distributed routing control method in an asynchronous transfer mode switching system having a multi-stage switch structure.;2. The technical problem to be solved by the invention;In ATM switching system with multi-stage switch structure, we want to set the optimal path while reducing the load of CCCP and OMP.;3. Summary of Solution to Invention;After the calling CCCP reserves the internal link of the outgoing access switch (ASW) that satisfies the user's required bandwidth, the calling CCCP requests routing establishment to the called party. After that, the OMP is transmitted to the OMP together with the reserved outgoing ASW internal link information to request a path setting, and the OMP uses the internal link information of the originating and outgoing ASW to determine an internal link of the central switch that satisfies the user's required bandwidth. It finds the switch link between inbound and outgoing switch of the module including the determined internal link number of the central switch, sets the path, and transmits this information to the called CCCP.;4. Important uses of the invention;Used for routing method of asynchronous transfer mode switching system.