In this paper, we discuss the influence of multiple bottlenecks on the stability of Active Queue Management (AQM) controllers, usually configured on a single bottleneck basis. To see this, we consider a network scenario where RED is configured at each router according to previously developed control theoretic techniques. These configuration rules assure stability in a single bottleneck scenario. Yet, we show that instability may arise when two links become congested. We justify this result through a multiple bottleneck model.
BAUSO D, GIARRE' L, NEGLIA G (2004). About the Stability of Active Queue Management Mechanism. In Proceedings of the 2004 American Control Conference (AAC) (pp.2954-2959).
About the Stability of Active Queue Management Mechanism
BAUSO, Dario;GIARRE, Laura;NEGLIA, Giovanni
2004-01-01
Abstract
In this paper, we discuss the influence of multiple bottlenecks on the stability of Active Queue Management (AQM) controllers, usually configured on a single bottleneck basis. To see this, we consider a network scenario where RED is configured at each router according to previously developed control theoretic techniques. These configuration rules assure stability in a single bottleneck scenario. Yet, we show that instability may arise when two links become congested. We justify this result through a multiple bottleneck model.
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