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標題: Performance improvement of two-dimensional packet classification by filter rephrasing
作者: Wang, P.C.
Lee, C.L.
Chan, C.T.
Chang, H.Y.
關鍵字: firewalls
packet classification
quality of service (QoS)
differentiated services
期刊/報告no:: Ieee-Acm Transactions on Networking, Volume 15, Issue 4, Page(s) 906-917.
摘要: Packet classification categorizes incoming packets into multiple forwarding classes in a router based on predefined filters. It is important in fulfilling the requirements of differentiated services. To achieve fast packet classification, a new approach, namely "filter rephrasing," is proposed to encode the original filters by exploiting the hierarchical property of the filters. Filter rephrasing could dramatically reduce the search and storage complexity incurred in packet classification. We incorporate a well-known scheme-rectangle search-with filter rephrasing to improve the lookup speed by at least a factor of 2 and decreases 70% of the storage expenses. As compared With other existing schemes, the proposed scheme exhibits a better balance between speed, storage, and computation complexity. Consequently, the scalable effect of filter rephrasing is suitable for backbone routers with a great number of filters.
ISSN: 1063-6692
Appears in Collections:資訊網路與多媒體研究所



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