Throughput differentiation using coloring at the network edge and preferential marking at the core

Authors:
Yossi Chait;C. V. Hollot;Vishal Misra;Don Towsley;Honggang Zhang;Yong Cui
Affiliations:
University of Massachusetts, Amherst, MA;University of Massachusetts, Amherst, MA;Columbia University, New York, NY;University of Massachusetts, Amherst, MA;University of Massachusetts, Amherst, MA;University of Massachusetts, Amherst, MA
Venue:
IEEE/ACM Transactions on Networking (TON)
Year:
2005

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Abstract

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.