A Resource-Efficient Flow Monitoring System

Network flow monitoring provides critical information for many network applications, and several approaches have been proposed to address flow monitoring. However they either lack flexibility in adapting to ever-changing network traffic (e.g. NetFlow), or require intensive computing resources (e.g. ANF). In this paper, we propose a resource-efficient flow monitoring system (called REFMS), which consists of pre-sampling module, sample & hold module, and flow removal module. Our REFMS can improve sampling accuracy and effectively utilize measurement resource with multiple sampling algorithms.