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5-Tb/s frame-based ATM switching system using 2.5-Gb/s×8-λ optical switching technique

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5 Author(s)
Yamakoshi, K. ; NTT Network Service Syst. Labs., Tokyo, Japan ; Nakai, K. ; Matsuura, N. ; Oki, E.
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This paper describes the hardware architecture and performance of a 5-Tb/s frame-based (FB) ATM switching system OPTIMA-P (OPTically Interconnected Distributed Multi-stage Tb/s-ATM switching Network Architecture -2). First, we describe the switch architecture, which is a non-blocking 3-stage switch using optical wavelength division multiplexing (WDM) and dynamic bandwidth sharing technique. Variable-length FB-ATM cells, which can encapsulate IP packets, can be switched while keeping throughput fairness. Second, we propose a scheduling technique for variable-length packets used in the WDM system which selects packets from the eight wavelengths. We show that the scheduling technique can keep the fairness and has a small delay for variable-length packets. A pipelined-scheduling technique for variable-length packets is also proposed for high-speed and large-capacity switching system

Published in:

High Performance Switching and Routing, 2001 IEEE Workshop on

Date of Conference:

2001