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Packet classification is used by networking equipment to sort packets into flows by comparing their headers to a list of rules, with packets placed in the flow determined by the matched rule. A flow is used to decide a packet's priority and the manner in which it is processed. Packet classification is a difficult task due to the fact that all packets must be processed at wire speed and rulesets can...
Processor design is a widely studied topic in computer system architecture design. How to improve computer performance is an important part of the computer overall design. In general processors, multiplication components play a decisive role in processor's performance. An important and frequent operation in decimal computations is multiplication. However, due to the inherent inefficiency of decimal...
Network processors have exploited many aspects of architecture design, such as employing multi-core, multi-threading and hardware accelerator, to support both the ever-increasing line rates and the higher complexity of network applications. Micro-architectural techniques like superscalar, deep pipeline and speculative execution provide an excellent method of improving performance without limiting...
Meeting the future requirements of higher bandwidth while providing ever more complex functions, future network processors will require a number of methods of improving processing performance. One such method will involve deeper processor pipelines to obtain higher operating frequencies. Mitigation of the penalty costs associated with deeper pipelines have achieved by implementing prediction schemes,...
Caching mechanism has achieved great success in general purpose processor; however, its deployment in Network Processor (NP) raises questions over its effectiveness under the new context. In this study, we thoroughly evaluate the performance of caches in NP with architectural features like multicore, multithread, and integrated packet interface. Our major findings include: (1) In general, a sufficiently...
Packet classification algorithms are increasingly being used to provide security and Quality of Service guarantees. These algorithms are usually implemented on power hungry programmable network processors, which are used in devices such as core routers and firewalls. This paper compares the energy used by five best-known algorithms Recursive Flow Classification, HiCuts, HyperCuts, Extended Grid-of-Tries...
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