| Summary: | 碩士 === 國立清華大學 === 通訊工程研究所 === 93 === As the technology becomes more and more mature, it is necessary to build up high-speed transmission equipment. People begin trying to use optical fiber to transmit data. For the reason, there is an urgent need to establish high speed switches so as to match the speed of optical fiber.
Because the shared medium switches (output-buffered switches) both have a major problem that is the scalability limitation, so the switch architecture permits read and write at the same time – the input-buffered switches gets a lot of attention. And then the Birkhoff-von Neumann switches is proposed, it uses some control stage to solve the out-of-sequence problem. In order to control pack delay, quasi-circuit switch is proposed.
When the input traffic pattern is not (r,T)-smooth, the performance of input ports is different, especially the last input port, it having the worst performance. In this thesis, we propose some capacity reservation for packet delay to let the performance of every input port be about the same. We look at the performance with different traffic pattern in simulation.
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