Abacus switch: a new scalable multicast ATM switch

H. Jonathan Chao; Jin-Soo Park; Byeong-Seog Choe

doi:10.1117/12.224209

1 October 1995 Abacus switch: a new scalable multicast ATM switch

H. Jonathan Chao, Jin-Soo Park, Byeong-Seog Choe

Proceedings Volume 2608, Emerging High-Speed Local-Area Networks and Wide-Area Networks; (1995) https://doi.org/10.1117/12.224209
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

This paper describes a new architecture for a scalable multicast ATM switch from a few tens to thousands of input ports. The switch, called Abacus switch, has a nonblocking memoryless switch fabric followed by small switch modules at the output ports; the switch has input and output buffers. Cell replication, cell routing, output contention resolution, and cell addressing are all performed distributedly in the Abacus switch so that it can be scaled up to thousnads input and output ports. A novel algorithm has been proposed to resolve output port contention while achieving input and output ports. A novel algorithm has been proposed to reolve output port contention while achieving input buffers sharing, fairness among the input ports, and multicast call splitting. The channel grouping concept is also adopted in the switch to reduce the hardware complexity and improve the switch's throughput. The Abacus switch has a regular structure and thus has the advantages of: 1) easy expansion, 2) relaxed synchronization for data and clock signals, and 3) building the switch fabric using existing CMOS technology.

Citation Download Citation

H. Jonathan Chao, Jin-Soo Park, and Byeong-Seog Choe "Abacus switch: a new scalable multicast ATM switch", Proc. SPIE 2608, Emerging High-Speed Local-Area Networks and Wide-Area Networks, (1 October 1995); https://doi.org/10.1117/12.224209

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