Multiplex communications – Wide area network – Packet switching
Patent
1994-05-25
1996-07-09
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 66, H04L 1256
Patent
active
055351972
ABSTRACT:
This invention relates to a switch module for use in an asynchronous transfer mode (ATM) system incorporating a shared buffer memory where incoming data cells are stored and subsequently transferred to exit ports. An incoming data cell is stored at a vacant buffer memory address on an interleaved, word-by-word basis and the address is placed in an appropriate priority queue in the appropriate exit port for the data cell. When time is available for transmission from the exit port, the data cell corresponding to the address at the head of the highest priority queue is sent to the exit port and transmitted.
REFERENCES:
patent: 3796835 (1974-03-01), Closs et al.
patent: 4603416 (1986-07-01), Servel et al.
patent: 4823340 (1989-04-01), Grassman et al.
patent: 4884264 (1989-11-01), Servel et al.
patent: 4939719 (1990-07-01), Bakka
patent: 4939720 (1990-07-01), Bakka
patent: 5062106 (1991-10-01), Yamazaki et al.
patent: 5130979 (1992-07-01), Ohtawa
patent: 5280475 (1994-01-01), Yanagi et al.
patent: 5303233 (1994-04-01), Sugawara
patent: 5365519 (1994-11-01), Kozaki et al.
Kuwahara, Hiroshi et al., "A shared buffer memory switch for an ATM exchange", Conference Record of the IEEE International Conference on Communications, vol. 1, pp. 4.4.1-4.4.5, Boston, MA, Jun. 11-14, 1989.
Barri, P. and Goubert, J. A. O., "Implementation of a 16 to 16 Switching Element for ATM Exchanges", IEEE Journal on Selected Areas in Communications, vol. 9, No. 5, Jun., 1991, pp. 751-757.
Sakurai, Y. et al., "Large-Scale ATM Multistage Switching Network with Shared Buffer Memory Switches", IEEE Communications Magazine, Jan., 1991, pp. 90-96.
Veendrick, H. J. M., "The Behavior of Flip-Flops Used as Synchronizers and Prediction of Their Failure Rate", IEEE Journal of Solid-State Circuits, vol. SC-15, No. 2, Apr., 1980, pp. 169-176.
Horstmann, J. U., et al., "Metastability Behavior of CMOS ASIC Flip-Flops in Theory and Test", IEEE Journal of Solid-State Circuits, vol. 24, No. 1, Feb., 1989, pp. 146-157.
Kleeman, L. and Cantoni, A., "Metastable Behavior in Digital Systems", IEEE Design & Test of Computers, Dec., 1987, pp. 4-19.
Karol, M. J., et al., "Input v. Output Queueing on a Space-Division Packet Switch", Conference Record IEEE Global Telecommunications Conference, Houston, TX, Dec. 1-4, 1986, pp. 19.4.1-19.4.7.
Eckberg, A. E. and Hou, T. -C., "Effects of Output Buffer Sharing on Buffer Requirements in an ATDM Packet Switch", Proceedings of the Seventh Annual Joint Conference of the IEEE Computer and Communications Soc., New Orleans, LA, Mar. 29-31, 1988, pp. 51.4.1-5A-4.8.
DePrycker, M. et al., "An ATM Switching Architecture with Intrinsic Multicast Capabilities for the Belgian Broadband Experiment", Proceedings of the Int'l Switching Symposium, Stockholm, SE, May 28-Jun. 1, 1990, vol. V, pp. 111-118.
Henrion, M. A. et al., "Switching Network Architecture for ATM Based Broadband Communications", Proceedings of the Int'l Switching Symposium, Stockholm, SE, May 28-Jun. 1, 1990, vol. V, pp. 1-8.
Boettle, D. Henrion, M. A., "Alcatel ATM Switch Fabric and Its Properties", 1225 Electrical Communication 64 (1990) No. 2/3, Ramford, Essex, GB, pp. 156-165.
Sansom, R. D., "High-Performance ATM LAN Switches: Requirements and Architecture", Engineer Conference Notes Networld+Interop 94, Las Vegas, Nevada, May 4-5, 1994, pp. E6.1.
Alles, A., ATM in Private Network, a Tutorial (Interop '93 Version), Hughes LAN Systems.
Chin Wellington
IPC Information Systems, Inc.
Nguyen Chau T.
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