IEEE/ICACT20230043 Slide.09        [Big Slide]       Oral Presentation
There are several multi-level network topologies, including Omega, Clos, Benes, and butterfly networks. Among them, we choose Clos network because of the scalability and fixed switching delay of Clos networks, and the orderiness of data transmission. The three-stage Clos switching network is composed of input, intermediate and output stage. There is only one link between modules at each level. The input stage consists of K N ¡¿ M crossbars. The intermediate stage is composed of M crossbars of K ¡¿K. The output stage consists of K M ¡¿ N crossbars. That M represents the number of input ports in each module and N represents the number of output ports in each module,K represents the number of input and output ports of the intermediate stage.

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