.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.
About the stability of the Active Queue Management mechanism / Bauso, D; Giarrè, Laura; Neglia, G.. - 4:(2004), pp. 2954-2959. (Intervento presentato al convegno Proceedings of the 2004 American Control Conference (AAC) tenutosi a Boston, MA, usa nel june 2004) [10.23919/acc.2004.1384361].