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INFOCOM
2007
IEEE

An Accurate Link Model and Its Application to Stability Analysis of FAST TCP

12 years 24 days ago
An Accurate Link Model and Its Application to Stability Analysis of FAST TCP
— This paper presents a link model which captures the queue dynamics when congestion windows of TCP sources change. By considering both the self-clocking and the link integrator effects, the model is a generalization of existing models and is shown to be more accurate by both open loop and closed loop packet level simulations. It reduces to the known static link model when flows’ round trip delays are similar, and approximates the standard integrator link model when the heterogeneity of round trip delays is significant. We then apply this model to the stability analysis of FAST TCP. It is shown that FAST TCP flows over a single link are always linearly stable regardless of delay distribution. This result resolves the notable discrepancy between empirical observations and previous theoretical predictions. The analysis highlights the critical role of self-clocking in TCP stability and the scalability of FAST TCP with respect to delay. The proof technique is new and less conservati...
Ao Tang, Krister Jacobsson, Lachlan L. H. Andrew,
Added 03 Jun 2010
Updated 03 Jun 2010
Type Conference
Year 2007
Where INFOCOM
Authors Ao Tang, Krister Jacobsson, Lachlan L. H. Andrew, Steven H. Low
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