Fast and memory-efficient regular expression matching for deep packet inspection
Proceedings of the 2006 ACM/IEEE symposium on Architecture for networking and communications systems
A hybrid finite automaton for practical deep packet inspection
CoNEXT '07 Proceedings of the 2007 ACM CoNEXT conference
Deflating the big bang: fast and scalable deep packet inspection with extended finite automata
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
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Regular expression matching is popular in today's network devices with deep inspection function, but due to lack of algorithmic scalability, it is still the performance bottleneck in practical network processing. To address this problem, our method first partition regular expression patterns into simple segments to avoid state explosion, and then compile these segments into a compact data structure to achieve fast matching. Preliminary experiments illustrate that our matching engine scales linearly with the size of the real-world pattern set, and outperforms state-of-the-art solutions.