Integrating Active Methods and Flow Meters - an implementation using NeTraMet

Thomas Lindh
KTH, Royal Institute of Technology, IMIT, Sweden.

Nevil Brownlee
Cooperative Association for Internet Data Analysis - CAIDA
San Diego Supercomputer Center,
University of California, San Diego.
The University of Auckland, New Zealand.

The purpose of this paper is to present an implementation of a method that combines active and passive methods to measure and estimate the main performance parameters in IP networks. More specifically the method integrates performance and flow measurements. The main features of the method and an implementation using the flow meter NeTraMet are described. Test results for packet delays and delay variations, losses and throughput are presented. Applications to monitoring of traffic from server-based networks and an adaptive monitoring system are also considered.