Stability and sensitivity of ABR flow control protocols
Wie K. Tsai, Yuseok Kim, Fabio M. Chiussi, Chai Keong Toh · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1998
This tutorial paper surveys the important issues in stability and sensitivity analysis of ABR flow control of ATM networks. THe stability and sensitivity issues are formulated in a systematic framework. Four main cause of instability in ABR flow control are identified: unstable control laws, temporal variations of available bandwidth with delayed feedback control, misbehaving components, and interactions between higher layer protocols and ABR flow control. Popular rate-based ABR flow control protocols are evaluated. Stability and sensitivity is shown to be the fundamental issues when the network has dynamically-varying bandwidth. Simulation result confirming the theoretical studies are provided. Open research problems are discussed.