Title :
5-Tb/s frame-based ATM switching system using 2.5-Gb/s×8-λ optical switching technique
Author :
Yamakoshi, Kimihiro ; Nakai, Kahei ; Matsuura, Nobuaki ; Oki, Eiji ; Yamanaka, Naoaki
Author_Institution :
NTT Network Service Syst. Labs., Tokyo, Japan
Abstract :
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
Keywords :
CMOS integrated circuits; asynchronous transfer mode; delays; multistage interconnection networks; optical switches; packet switching; pipeline processing; transport protocols; wavelength division multiplexing; 0.18 mum; 2.5 Gbit/s; 5 Tbit/s; ATM switching network architecture; CMOS technology; IP packets; OPTIMA-P; WDM system; dynamic bandwidth sharing; frame-based ATM switching system; hardware architecture; high-speed switching system; large-capacity switching system; nonblocking 3-stage switch; optical switching; optical wavelength division multiplexing; optically interconnected distributed multistage network; performance; pipelined scheduling; throughput fairness; variable-length FB-ATM cells; variable-length packets; Asynchronous transfer mode; Bandwidth; Hardware; High speed optical techniques; Optical fiber networks; Optical interconnections; Optical packet switching; Optical switches; Switching systems; Wavelength division multiplexing;
Conference_Titel :
High Performance Switching and Routing, 2001 IEEE Workshop on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-6711-1
DOI :
10.1109/HPSR.2001.923610