In this paper, we highlight that multiple bottlenecks can affect the performance of Active Queue Management controllers, which are usually configured on a single bottleneck basis, as if each controller were the only element regulating the TCP traffic along its path. 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 link become congested. We justify this result through a multiple bottleneck model and give guidelines for new cooperative AQM controllers.
BAUSO D, L GIARRE', G NEGLIA (2004). AQM Stability in Multiple Bottleneck Networks. In 2004 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-7 (pp.2267-2271) [10.1109/ICC.2004.1312921].
AQM Stability in Multiple Bottleneck Networks
BAUSO, Dario;GIARRE, Laura;NEGLIA, Giovanni
2004-01-01
Abstract
In this paper, we highlight that multiple bottlenecks can affect the performance of Active Queue Management controllers, which are usually configured on a single bottleneck basis, as if each controller were the only element regulating the TCP traffic along its path. 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 link become congested. We justify this result through a multiple bottleneck model and give guidelines for new cooperative AQM controllers.File | Dimensione | Formato | |
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