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Issue No. 12 - December (2009 vol. 58)
ISSN: 0018-9340
pp: 1695-1709
Wencheng Lu , University of Florida, Gainesville
Sartaj Sahni , University of Florida, Gainesville
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.
Packet classification, 2D tries, multibit tries, switch pointers, prefix expansion, fixed-stride tries, variable-stride tries, dynamic programming.

W. Lu and S. Sahni, "Efficient 2D Multibit Tries for Packet Classification," in IEEE Transactions on Computers, vol. 58, no. , pp. 1695-1709, 2009.
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