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Institute of Communication Networks and Computer Engineering (IKR)
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IKR Publication No 36552 |
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Publication No 36552
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Author(s)
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Hauger, S.*; Junghans, S.*; Köhn, M.*; Sass, D.*
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Title
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A Scalable Architecture for Flexible High-Speed Packet Classification
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Topics
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Local and Metropolitan Area Networks; Broadband Networks; Internet
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Methods
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Systems Engineering
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Keywords
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CLASSIFICATION; ARCHITECTURE; BROADBAND; HIGH SPEED; HARDWARE; IMPLEMENTATION; SYSTEM DESIGN; PROGRAMMABLE LOGIC; RECONFIGURATION; TABLE-LOOK-UP METHOD; MAN; WAN
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Abstract
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Inspection of a packet with respect to certain criteria and subsequent mapping of the packet to an according category is an essential task in any packet processing system. This is commonly referred to as packet classification. For such packet processing systems new or changing requirements are coming up continuously as networks and network services are rapidly evolving. So the architecture of a packet classification unit needs to be capable of processing packets at high speeds in the network nodes. Furthermore it needs to offer a high flexibility and adaptability with respect to new or changing protocol definitions and classification rules. Also, in order to meet future requirements the scalability of packet classification architectures is very important. We present an architecture for hardware-based packet classification, that is highly adaptable to new or changing protocol definitions and classification rules. The architecture is easily scalable with respect to both processing speed and the number of classification rules. Further, we describe our realization of the proposed classification architecture integrated into an FPGA based 1 Gbps high precision network measurement system. Also, we show that our architecture is applicable for line rates of at least 10 Gbps on current FPGAs. Finally, a discussion of scalability issues of the proposed architecture and performance and resource utilization measures are presented.
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Year
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2006
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Reference entry
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Hauger, S.; Junghans, S.; Köhn, M.; Sass, D.
A Scalable Architecture for Flexible High-Speed Packet Classification
Report, IKR, Universität Stuttgart, Stuttgart, Germany, December 2006
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BibTex file
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Authors marked with an asterisk (*) were IKR staff members at the time the publication has been written.
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