CAVT - A Congestion Avoidance Visualization Tool

CAVT is a simple, open source Java program to "play" with Chiu/Jain-vector-diagrams (the ones that are used in the famous paper "Analysis of the Increase/Decrease Algorithms for Congestion Avoidance in Computer Networks"). The goal is to study the dynamics of congestion control methods for analysis or design. In CAVT, mechanisms are specified using a very simple script language.

Screenshot

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This requires Java to be installed. On any platform (Windows, Linux, ..), go to the CAVTool directory and run the program with "java -jar cavtool.jar".

If you are using JDK version >= 1.4.2 and have a screen resolution <= 1024*768, you should use this version instead.

Documentation

The readme.txt file that comes with CAVT should be enough to get you started. However, if you're interested in further information, here is more:

• CAVT was written by Christian Sternagel for his bachelor thesis, which is the most comprehensive documentation, but it is German.
  
  
  
• This paper documents the tool and what you can use it for:
  Michael Welzl, Max Mühlhäuser: "CAVT - A Congestion Avoidance Visualization Tool", ACM Computer Communication Review, Volume 3, Issue 3, (July 2003), pp. 95-101.
  
  
  
• A prototype of CAVT was used to design the CADPC mechanism, which is explained along with the design process in:
  Michael Welzl: "Scalable Performance Signalling and Congestion Avoidance", Kluwer Academic Publishers, August 2003. ISBN 1-4020-7570-7
  available from Kluwer ... or Amazon !
  
  
• This paper provides some background on the idea of extending the use of vector diagrams for analysis and design:
  Michael Welzl: "Vector Representations for the Analysis and Design of Distributed Controls", MIC 2002 (IASTED Modelling, Identification and Control Conference), Innsbruck, Austria, 18-22 February 2002.