Charging from sampled network usage
IMW '01 Proceedings of the 1st ACM SIGCOMM Workshop on Internet Measurement
New directions in traffic measurement and accounting: Focusing on the elephants, ignoring the mice
ACM Transactions on Computer Systems (TOCS)
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
Efficient packet sampling for accurate traffic measurements
Computer Networks: The International Journal of Computer and Telecommunications Networking
A multiadaptive sampling technique for cost-effective network measurements
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We investigate the applicability of packet sampling techniques to flow-based accounting. First we show by theoretical considerations how the achievable accuracy depends on sampling techniques, parameters and traffic characteristics. Then we investigate empirically which accuracy is achieved with typical flow characteristics by experiments with real traffic traces from three different networks. In a third step we illustrate how to support sampling-based accounting by providing an accuracy statement together with the measured data. We show which information is required for this and how an accuracy assessment can be approximated from information available after the sampling process using information elements of the IP flow information export protocol (IPFIX).