Fair sampling across network flow measurements

9 years 2 months ago
Fair sampling across network flow measurements
Sampling is crucial for controlling resource consumption by internet traffic flow measurements. Routers use Packet Sampled NetFlow [9], and completed flow records are sampled in the measurement infrastructure [13]. Recent research, motivated by the need of service providers to accurately measure both small and large traffic subpopulations, has focused on distributing a packet sampling budget amongst subpopulations [26, 33, 40]. But long timescales of hardware development and lower bandwidth costs motivate post-measurement analysis of complete flow records at collectors instead. Sampling in collector databases then manages data volumes, yielding general purpose summaries that are rapidly queried to trigger drill-down analysis on a time limited window of full data. These are sufficiently small to be archived. This paper addresses the problem of distributing a sampling budget over subpopulations of flow records. Estimation accuracy goals are met by fairly sharing the budget. We estab...
Nick G. Duffield
Added 28 Sep 2012
Updated 28 Sep 2012
Type Journal
Year 2012
Authors Nick G. Duffield
Comments (0)