Modelling and stability of FAST TCP

Jiantao Wang, D.X. Wei, S.H. Low
Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies.  
Abskuct-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
more » ... 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. lnder Terms-Congestion control, FAST TCP, Local stability, Global stability 938 0-7803-8968
doi:10.1109/infcom.2005.1498323 dblp:conf/infocom/WangWL05 fatcat:po4v2zzn55ethn544psvg77i5e