Jitlat – A Jitter and Latency Measurement Tool


  1. McLachlan, D.
  2. Brind-Amour, A.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN);Communications Research Centre, Ottawa ONT (CAN)
As part of a research effort to demonstrate the feasibility of integrated voice and data on a narrow-band tactical radio network, the voice integrators wanted to know how much latency and jitter to expect over the network path. More importantly, they wanted to know the expected packet loss rate and the packet loss distribution. While it was possible to find tools to measure packet latency, jitter, and loss rates, no tool for measuring packet loss distribution was found. A tool to measure network performance, as would be experienced by periodic constant bit rate applications, such as voice over IP, was developed. The tool sends a periodic one-way constant bit rate data stream along the network path under test, analyses the received data stream, and displays the results to the user. Along with the usual packet statistics (e.g. number of lost, duplicate, and out-of-sequence packets, min/avg/max latency, min/avg/max jitter, etc.) it displays latency and burstiness (packet latency versus arrival time) plots, and in the case of multiple packet loss events it displays a packet loss-length histogram.

Il y a un résumé en français ici.

Report Number
DRDC-OTTAWA-TM-2011-047 — Technical Memorandum
Date of publication
01 May 2011
Number of Pages
Electronic Document(PDF)

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