Publication Details
Evolutionary design of hash function pairs for network filters
Kořenek Jan, doc. Ing., Ph.D. (DCSY)
Sekanina Lukáš, prof. Ing., Ph.D. (DCSY)
evolution, hash function, network filter, field-programmable gate array, cuckoo
Network filtering is a challenging area in high-speed computer networks, mostly because lots of filtering rules are required and there is only a limited time available for matching these rules. Therefore, network filters accelerated by field-programmable gate arrays (FPGAs) are becoming common where the fast lookup of filtering rules is achieved by the use of hash tables. It is desirable to be able to fill-up these tables efficiently, i.e. to achieve a high table-load factor in order to reduce the offline time of the network filter due to rehashing and/or table replacement. A parallel reconfigurable hash function tuned by an evolutionary algorithm (EA) is proposed in this paper for Internet Protocol (IP) address filtering in FPGAs. The EA fine-tunes the reconfigurable hash function for a given set of IP addresses. The experiments demonstrate that the proposed hash function provides high-speed lookup and achieves a higher table-load factor in comparison with conventional solutions.
@article{BUT134465,
author="Roland {Dobai} and Jan {Kořenek} and Lukáš {Sekanina}",
title="Evolutionary design of hash function pairs for network filters",
journal="APPLIED SOFT COMPUTING",
year="2017",
volume="56",
number="7",
pages="173--181",
doi="10.1016/j.asoc.2017.03.009",
issn="1568-4946",
url="http://dx.doi.org/10.1016/j.asoc.2017.03.009"
}