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10th Symposium on High Performance Interconnects HOT Interconnects (HotI'02)
A Four-Terabit Single-Stage Packet Switch with Large Round-Trip Time Support
Stanford, California, USA
August 21-August 23
ISBN: 0-7695-1650-5
F. Abel, IBM Research, Zurich Research Laboratory
C. Minkenberg, IBM Research, Zurich Research Laboratory
R. P. Luijten, IBM Research, Zurich Research Laboratory
M. Gusat, IBM Research, Zurich Research Laboratory
I. Iliadis, IBM Research, Zurich Research Laboratory
We present the architecture and practical VLSI implementation of a 4-Tb/s single-stage switch. It is based on a combined input- and crosspoint-queued structure with virtual output queuing at the ingress, which has the scalability of input-buffered switches and the performance of output-buffered switches. Our system handles the large fabric-internal transmission latency that results from packaging up to 256 line cards into multiple racks. We provide the justification for selecting this architecture and compare it with other current solutions. With an ASIC implementation, we show that a single-stage multi-terabit buffered crossbar approach is viable today.
Citation:
F. Abel, C. Minkenberg, R. P. Luijten, M. Gusat, I. Iliadis, "A Four-Terabit Single-Stage Packet Switch with Large Round-Trip Time Support," hoti, pp.5, 10th Symposium on High Performance Interconnects HOT Interconnects (HotI'02), 2002
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