Title :
Switching fabrics with internal backpressure using the ATLAS I single-chip ATM switch
Author :
Katevenis, Manolis ; Serpanos, Dimitrios ; Spyridakis, Emmanuel
Author_Institution :
Found. for Res. & Technol.-Hellas, Heraklion, Greece
Abstract :
ATLAS I is a single-chip ATM switch with optional credit-based (backpressure) flow control. This 4-million-transistor 0.35-micron CMOS chip, which is currently under development, offers 20 Gbit/s aggregate I/O throughput, sub-microsecond cut-through latency, 256-cell shared buffer containing multiple logical output queues, priorities, multicasting, and load monitoring. This paper discusses the use of backpressure inside networks based on ATLAS I chips: in switching fabrics of large ATM switches, or in wormhole-style workstation cluster LANs. We explain and we show by simulation that the ATLAS I backpressure provides a switching fabric with high performance, comparable to an output queued switch, at low cost, comparable to an input buffered switch
Keywords :
CMOS digital integrated circuits; asynchronous transfer mode; buffer storage; electronic switching systems; local area networks; protocols; queueing theory; telecommunication congestion control; workstations; 0.35 micron; 20 Gbit/s; ATLAS I; CMOS chip; aggregate I/O throughput; credit-based flow control; flow control protocol; high performance; input buffered switch; internal backpressure; load monitoring; multicasting; multiple logical output queues; output queued switch; priorities; shared buffer; simulation; single-chip ATM switch; sub-microsecond cut-through latency; switching fabrics; wormhole-style workstation cluster LAN; Asynchronous transfer mode; CMOS technology; Computer science; Delay; Fabrics; Hardware; Monitoring; Switches; Telecommunications; Workstations;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632547
