International Conference in Recent trends in Computational Methods, Communication and Controls |
Foundation of Computer Science USA |
ICON3C - Number 8 |
April 2012 |
Authors: C. Shalini, D. Shalini Punithavathani |
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C. Shalini, D. Shalini Punithavathani . Memory Efficient IPV4/V6 Lookup using Path Compression. International Conference in Recent trends in Computational Methods, Communication and Controls. ICON3C, 8 (April 2012), 9-12.
With the rapid growth of the Internet, IP-lookup becomes the bottle-neck in network traffic management. Therefore, the design of high speed IP routers has been a major area of research. The focus of this paper is on achieving significant reduction in memory requirements for the longest prefix-match operation needed in IPv4/v6 lookups. The Longest Prefix Matching (LPM) is one of the problems in the uni-bit trie representation, in which the number of nodes and the memory requirement is high for IP lookup. To solve this problem we propose a classic trie-based approach in IP lookup. We propose an algorithm to compress the uni-bit-trie representation of a given routing table by using single-prefix distance bounded path compression algorithm. This algorithm determines the optimal maximum skip distance at each node of the trie to minimize the total memory requirement