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Both Internet and semiconductor technology have advanced dramatically over the past decade. These advancements have made great impact on the conventional Internet infrastructure where networking equipment is dedicated on a per network basis. Router virtualization allows a single hardware router to serve packets from multiple networks while ensuring the same throughput and Quality of Service (QoS)...
We propose a combined length-infix pipelined search (CLIPS) architecture for high-performance IP lookup on FPGA. By performing binary search in prefix length, CLIPS can find the longest prefix match in (log L-c) phases, where L is the IP address length (32 for IPv4) and c>;0 is a small design constant (c=2 in our prototype design). Each CLIPS phase matches one or more input infixes of the same...
Memory efficiency with compact data structures for Internet Protocol (IP) lookup has recently regained much interest in the research community. In this paper, we revisit the classic trie-based approach for solving the longest prefix matching (LPM) problem used in IP lookup. In particular, we target our solutions for a class of large and sparsely-distributed routing tables, such as those potentially...
Since the recent increase in the popularity of services that require high bandwidth, such as high-quality video and voice traffic, the need for 100-Gbps equipment has become a reality. In particular, next generation routers are needed to support 100-Gbps worst-case IP lookup throughput for large IPv4 and IPv6 routing tables, while keeping the cost and power consumption low. It is challenging for today's...
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