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Published 2007 | Accepted Version + Published
Book Section - Chapter Open

Modelling and stability of FAST TCP


We introduce a discrete-time model of FAST TCP that fully captures the effect of self-clocking and compare it with the traditional continuous-time model. While the continuous-time model predicts instability for homogeneous sources sharing a single link when feedback delay is large, experiments suggest otherwise. Using the discrete-time model, we prove that FAST TCP is locally asymptotically stable in general networks when all sources have a common round-trip feedback delay, no matter how large the delay is. We also prove global stability for a single bottleneck link in the absence of feedback delay. The techniques developed here are new and applicable to other protocols.

Additional Information

c2005. This is part of the Caltech FAST Project supported by NSF, Caltech Lee Center for Advanced Networking, ARO, AFOSR, and Cisco. Appears in Proceedings of IEEE Infocom, Miami, FL, March 2005.

Attached Files

Published - 01498323.pdf

Accepted Version - FASTstability-infocom05.pdf


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August 19, 2023
October 20, 2023