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학술대회 Flow Table Management Scheme Applying an LRU Caching Algorithm
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저자
김은도, 최윤철, 이승익, 신명기, 김형준
발행일
201410
출처
International Conference on Information and Communication Technology Convergence (ICTC) 2014, pp.335-340
DOI
https://dx.doi.org/10.1109/ICTC.2014.6983149
협약과제
14ME1300, 개방형 프로그래머블 네트워킹 기술 표준개발, 신명기
초록
In this paper, we address the communication overhead problem between OpenFlow controllers and switches due to table-miss in a flow table. For dealing with table-miss, the switch informs the controller by sending a packet-in message to make the controller perform further actions. However, this packet-in procedure to deal with table-miss may cause a controller overhead when one controller has to process many events. For reducing the controller overhead, we propose a modified flow table management scheme with applying an LRU caching algorithm. By keeping the flow entries in a flow table as many as possible, we can increase the flow entry matching rate.
키워드
Flow table, Flow-based networking, OpenFlow, Performance, SDN
KSP 제안 키워드
Communication overhead, Flow-based networking, Matching rate, Table-miss, caching algorithm, flow table management, management scheme