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Throughput Differentiation Using Coloring at the Network Edge and Preferential Marking at the Core

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6 Author(s)
Y. Chait ; Univ. of Massachusetts, Amherst, MA, USA ; C. V. Hollot ; V. Misra ; D. Towsley
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In this paper we introduce an innovation in differentiated services architecture consisting of adaptive two-level coloring at the edge and preferential marking at the core. We identify general properties of these two processes which, when met, guarantee a desirable fixed point for the network; i.e., one where aggregated flow rates meet or exceed given targets in an over-provisioned network. Specific mechanisms realizing the aforementioned properties lead to so-called active rate management controllers for edge coloring, and a preferentially-marking, active queue management controller at the core. We discuss stability of the fixed point for this network, and validate results using ns simulations.

Published in:

IEEE/ACM Transactions on Networking  (Volume:13 ,  Issue: 4 )