Evaluation of an End-to-End Delay Estimation in the Case of Multiple Flows in SDN Networks

Huu-Nghi Nguyen 1 Thomas Begin 1 Anthony Busson 1 Isabelle Guérin Lassous 1
1 DANTE - Dynamic Networks : Temporal and Structural Capture Approach
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme, IXXI - Institut Rhône-Alpin des systèmes complexes
Abstract : Though SDN (Software Defined Network) provides the executive building blocks for programming data-plane appliances , controller decisions must be grounded in an accurate outlook on the network topology and performance. In this context, we focus on the possibility of providing accurate measurements for the end-to-end (E2E) delay in SDN networks. In practice, like many variable quantities, a good description of the E2E delay requires characterizing its first two moments, i.e., expectation and variance. We propose to estimate the E2E delay by making use only of measurements collected locally on each node of the network. We extend a procedure that has been proposed to estimate the E2E delay in the case of one flow to handle the case of multiple competing flows. We compare its accuracy using several scenarios, with different types of traffic following real traces, different topologies and bandwidth. Also, an analysis of the computational and networking costs of our solution is proposed.
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Huu-Nghi Nguyen, Thomas Begin, Anthony Busson, Isabelle Guérin Lassous. Evaluation of an End-to-End Delay Estimation in the Case of Multiple Flows in SDN Networks. 3rd International Workshop on Management of SDN and NFV Systems, ManSDN/NFV, Nov 2016, Montréal, Canada. ⟨hal-01387737⟩

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