Handbook of algorithms and data structures: in Pascal and C (2nd ed.)
Handbook of algorithms and data structures: in Pascal and C (2nd ed.)
Routing on longest-matching prefixes
IEEE/ACM Transactions on Networking (TON)
Small forwarding tables for fast routing lookups
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Faster IP lookups using controlled prefix expansion
SIGMETRICS '98/PERFORMANCE '98 Proceedings of the 1998 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
Fast address look-up for internet routers
BC '98 Proceedings of the IFIP TC6/WG6.2 Fourth International Conference on Broadband Communications: The future of telecommunications
Algorithms for routing lookups and packet classification
Algorithms for routing lookups and packet classification
IP switching and gigabit routers
IEEE Communications Magazine
IP-address lookup using LC-tries
IEEE Journal on Selected Areas in Communications
DMP-tree: A dynamic M-way prefix tree data structure for strings matching
Computers and Electrical Engineering
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IP lookup is still considered a hard and challenging problem in routers. In high speeds, around 100Gbps, and with current growth rate of lookup tables, it sounds IP lookup can be a bottleneck. Complexity of the problem stems from the fact that routers must find the longest matching prefix with a packet destination address in the lookup table in order to forward the packet. Basically, this process is slow. We are currently developing a hardware-based scheme, which can perform IP lookup in a time proportional to access time to the external memory. The method implements DMP-tree, Dynamic M-way Prefix tree, which is a superset of B-tree and initially devised for prefix matching. Implemented in a FPGA, the scheme can forward around 100 million packets per second and regarding the average packet size can support IP lookup for over 100Gbps line speed. Our technique scales well to the next generation IP addressing, IPv6.