Patent ID: 6052373
Filing Date: 2000-04-18
Classification: H04L,H04Q

Abstract:
An ATM switching system comprising:a plurality of switch port controllers, each of said switch port controllers having a plurality of input/output ports on the user side and a plurality of input/output ports on the switch side, said switch port controllers including means for exchanging switch cells over said switch side, anda plurality of data path ICs, each of said data path ICs having a plurality of inputs and a plurality of outputs, said data path ICs include means for providing physical paths connecting said switch port controllers, anda control IC, said control IC comprising a multistage interconnection network, said multistage interconnection network having a plurality of bidirectional lines and unidirectional lines, said multistage interconnection network further having a combinatorial parallel path between adjacent switching elements to propagate entire control headers across said multistage interconnection network, to thereby greatly shorten the control time, said control IC further including means for resolving connection requests and means for setting up said connections between said switch port controllers.