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Deep Packet Inspection (DPI) techniques are considered extremely expensive in terms of processing costs and therefore are usually deployed in edge networks, where the amount of data to be processed is limited. This paper demonstrates that, in case the application can tolerate some compromises in terms of accuracy (such as many measurement-based tasks) and in presence of normal traffic, the processing cost can be greatly reduced while even improving the classification precision, making DPI suitable also for high-speed networks.
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