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A Scheduling of Switch Ports for IP Forwarding
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  • A Scheduling of Switch Ports for IP Forwarding
  • A Scheduling of Switch Ports for IP Forwarding
저자명
이채영,이왕환,조희권,Lee. Chae-Y.,Lee. Wang-Hwan,Cho. Hee-K.
간행물명
대한산업공학회지
권/호정보
1999년|25권 2호|pp.233-239 (7 pages)
발행정보
대한산업공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

With the increase of Internet protocol (IP) packets the performance of routers became an important issue in internetworking. In this paper we examined the matching algorithm in gigabit router which has input queue with virtual output queueing. Port partitioning concept is employed to reduce the computational burden of the scheduler within a switch. The input and output ports are divided into two groups such that the matching algorithm is implemented within each input-output pair group in parallel. The matching is performed by exchanging input and output port groups at every time slot to handle all incoming traffics. Two algorithms, maximal weight matching by port partitioning (MPP) and modified maximal weight matching by port partitioning (MMPP) are presented. MMPP has the lowest delay for every packet arrival rate. The buffer size on a port is approximately 20-60 packets depending on the packet arrival rates. The throughput is illustrated to be linear to the packet arrival rate, which can be achieved under highly efficient matching algorithm.