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Sampling is highly demanded in software defined networking (SDN) by the need to control the consumption of network measurement resources and by the need of detailed measurements from applications and service providers. Open-Flow, as the standard control protocol between SDN controller and switches, is not equipped with traffic sampling function. In this paper, we proposes a software defined sampling...
One crucial challenge in network flow monitoring is how to accurately and efficiently monitor the large volume of network flows. Several approaches proposed to address this challenge either lack flexibility adapting to greatly varying network traffic (e.g. sNetFlow), or require intensive computing resources (e.g. ANF). In this paper, we propose a novel double-sampling and hold approach for net work...
Online flow distribution monitoring is critical in intrusion detection. However, high-speed traffic monitoring is significantly challenging for a monitoring system with limited resources (e.g., memory and processing cycles). Flow and packet sampling techniques are commonly adopted to tackle this problem. Flew sampling can reduce the variance of the estimators in short flows; However, it increases...
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