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We consider the problem of scheduling the transmission of packets in an input-queued switch. In order to achieve maximum throughput, scheduling algorithms usually employ the queue length as a parameter for determining the priority to serve a given queue. In this work we propose a novel scheme to optimize the performance of a preexisting scheduler. Our main idea is to assist the scheduling decision, considering "messages" rather than queue lengths. Such messages are obtained by running andoi:10.1109/hoti.2010.11 dblp:conf/hoti/AtallaCGP10 fatcat:b4ku5ubxongvppmba5q5u4lo3m