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Optimal Solution of the Maximum All Request Path Grooming Problem

Jean-Claude Bermond 1 Michel Cosnard 1 David Coudert 1 Stéphane Pérennes 1
1 MASCOTTE - Algorithms, simulation, combinatorics and optimization for telecommunications
CRISAM - Inria Sophia Antipolis - Méditerranée , Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
Abstract : We give an optimal solution to the Maximum All Request Path Grooming (MARPG) problem motivated by a traffic grooming application. The MARPG problem consists in finding the maximum number of connections which can be established in a path of size $N$, where each arc has a capacity or bandwidth $C$ (grooming factor). We present a greedy algorithm to solve the problem and an explicit formula for the maximum number of requests that can be groomed. In particular, if $C = s(s+1)/2$ and $N > s(s-1)$, an optimal solution is obtained by taking all the requests of smallest length, that is of length 1 to $s$. However this is not true in general since anomalies can exist. We give a complete analysis and the exact number of such anomalies.
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Submitted on : Friday, May 19, 2006 - 8:19:21 PM
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Jean-Claude Bermond, Michel Cosnard, David Coudert, Stéphane Pérennes. Optimal Solution of the Maximum All Request Path Grooming Problem. [Research Report] RR-5627, INRIA. 2006, pp.12. ⟨inria-00070381⟩

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