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Conference Paper
Flow Table Management Scheme Applying an LRU Caching Algorithm
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- Authors
- Eun-Do Kim, Yunchul Choi, Seung-Ik Lee, Myung-Ki Shin, Hyoung-Jun Kim
- Issue Date
- 2014-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2014, pp.335-340
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- 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.
- KSP Keywords
- Communication overhead, Matching rate, Table-miss, caching algorithm, flow table management, management scheme