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Efficient 2D Multibit Tries for Packet Classification

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2 Author(s)
Wencheng Lu ; CISE Dept., Univ. of Florida, Gainesville, FL, USA ; Sahni, S.

We develop fast algorithms to construct space-optimal constrained 2D multibit tries for Internet packet classifier applications. Experimental evidence suggests that space-optimal 2D multibit tries and their extensions using a bucket scheme are superior to existing 2D and multidimensional packet classification schemes in terms of both memory requirement and number of memory accesses requirement. We propose a heuristic for 2D multibit tries with switch pointers, which may be used for 2D packet classification.

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Computers, IEEE Transactions on  (Volume:58 ,  Issue: 12 )