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    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/67641


    Title: A two-stage packet classification algorithm
    Authors: W. T. Chen;Shih;Jeng-Long Chiang
    教師: 陳文村
    Date: 2003
    Relation: Advanced Information Networking and Applications,2003. AINA 2003. 17th International Conference on,Issue Date: 27-29 March 2003,On page(s): 762 - 767
    Keywords: two-stage packet classification algorithm
    Abstract: Packet classification is essential for routing, Quality of Service (QoS) provisioning, and policy-based firewall deployment. A packet classifier categorizes incoming packets into specific flows, aggregates, or service classes according to pre-defined rules. Previous works transform range-based fields into prefixes to simplify packet classification by deploying a single prefix-based matching scheme. However, range-to-prefix transformation enlarges rule databases thus resulting in huge memory consumption and inefficient searching performance. This paper suggests a two-stage packet classification algorithm to handle prefixes and ranges separately. A novel prefix-based matching scheme is also proposed. Experimental results indicate 95% reduction of storage space in comparison with the Hierarchical Trie (H-Tries), a typical prefix-based approach. Besides, the two-stage algorithm demonstrates efficient searching performance even when the rule database grows large.
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/67641
    Appears in Collections:[資訊工程學系] 會議論文

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