The "Performance Transparency Protocol (PTP)"

CADPC/PTP in a nutshell: a means to efficiently retrieve performance related information from a path.

Its usefulness was shown for isolated scenarios with long-lived greedy flows by simulating the "Congestion Avoidance with Distributed Proportional Control (CADPC)" mechanism, which solely relies on (rare) PTP feedback, as documented in:

Michael Welzl: "Scalable Performance Signalling and Congestion Avoidance", Kluwer Academic Publishers, August 2003, ISBN 1-4020-7570-7
Forewords by Jon Crowcroft and Max Mühlhäuser
Book announcement! Buy it from Amazon !
Read a review ! (IEEE Network, Nov. 03)

This is a revised (and the only published) version of my Ph.D. thesis; the defense took place in Darmstadt November 18 2002 (passed with distinction), the committee consisted of Max Mühlhäuser (supervisor), Jon Crowcroft (2nd supervisor), R. Steinmetz, W. Bibel and W. Henhapl.
ppt, pdf

Some pictures:
[caught in action], [yes it's a QoS-CC-issue!],
[waiting nervously], [what a bad talk!], [well ... it was mediocre],
[tired (left) + glad it's over (right)], [would-be-italian buffet]



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Last update: 4. August 2006
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