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Modern networks are increasingly becoming content aware to improve data delivery and security via content-based network processing. Content-aware processing at the front end of distributed network systems, such as application identification for data-center load-balancers and deep packet inspection for security gateways, is more challenging due to the wire-speed and low-latency requirement. Existing work focuses on algorithm-level solutions while lacking system-level design to meet the critical requirement for front-end content processing. In this paper, the authors propose a system-level solution named FEACAN for front-end acceleration of content-aware network processing. FEACAN employs a software-hardware co-design supporting both signature matching and regular expression matching for content-aware network processing.
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