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Vinay Ribeiro, Mark Coates, Rudolf Riedi, Shriram Sarvotham, Brent Hendricks, Richard Baraniuk

2000/9/18

Proc. of ITC specialist seminar on IP traffic Measurement

Vinay J. Ribeiro Page 1 HD MULTIFRACTAL CROSS-TRAFFIC ESTIMATION Vinay J. Ribeiro Mark Coates, Rolf Riedi, Shriram Sarvotham, Brent Hendricks Richard Baraniuk Rice University supported by NSF, ONR, DARPA Page 2 End-to-End Path Modeling queue virtual bottleneck cross-traffic virtual competing D ROUTER ROUTER ROUTER ROUTER LAN LAN WAN LAN LAN Model: single bottleneck queue Goal: estimate competing cross-traffic Vinay Ribeiro Rice University Page 3 Probing C cross-traffic D probe packets P1 P2 P1 P2 delay ) queue length )volume of cross-traffic T 2T 3T 4T time mean traffic over T dynamic available bandwidth cross-traffic virtual bytes/sec C Vinay Ribeiro Rice University Page 4 Probing Uncertainty Principle T crit = P=C, P probe packet size, C link cap. Tp Probes Probe spacing Tp Measurements Impact on cross-traffic < T crit exact strong > T crit not exact less strong uncertainty )…