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In the absence of a cost-effective technology for storing optical signals, emerging optical packet switched (OPS) networks are expected to have severely limited buffering capability. To mitigate the performance degradation resulting from small buffers, this paper proposes that optical edge nodes "pace" the injection of traffic into the OPS core. Our contributions relating to pacing in OPS networks are three-fold: first, we develop realtime pacing algorithms of poly-logarithmic complexity thatdoi:10.1109/tnet.2008.2005622 fatcat:7zfrxrdcazfr5m52rvx5artjdi