一种新型的PPS交换机
A New Type of PPS Switches
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摘要: 并行分组交换机(PPS)是一种利用多个低速交换结构实现高速交换的新技术，它是当前高速交换领域的一个研究热点。该文首先分析了PPS交换机的研究现状。然后，提出了一种新型的PPS交换机结构，运用流指数控制的方法保证了信元通过PPS交换机时不会乱序。仿真分析表明该交换结构和算法能提供良好的吞吐率和平均延迟。Abstract: Parallel Packet Switch (PPS) can realize high speed switching by using low speed switches, which is a hot spot in switching area. So, this paper analyzes the current situation, and presented the PPS_RR scheduling algorithm by using the concept of flow index. The math analyzing validates that the system can guarantee packet sequence in a data flow. Finally, computer simulation shows the type of PPS has good performance on average delay.
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Iyer. S, Awadallah. A, et al.. Analysis of packet switch withmemories munning mlower than the mine mate[A]. IEEEINFOCOM'00, Tel Aviv, Israel, April 2000, vol.2: 529.537.[2]Iyer S, McKeown N. Making parallel packet switches practical.IEEE INFOCOM, May 2001, vol.3: 1680.1687.[3]S-T Chuang, Goel A, McKeown N, Prabhakar B. Matching outputqueueing with a combined input output queued switch[J].IEEE J.on Select. Areas Commun.1999,17:1030-[4]Chang C S, Lee D S, Jou Y S. Load balanced Birkhoff-vonNeumann switches Part I: one-stage buffering. ComputerCommunications, 2002, 25(6): 611.622. -
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