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Drawing from todaypsilas best-in-class solutions, we identify power-saving strategies that have succeeded in the past and look forward to new ideas and paradigms. We strongly believe that designing energy-efficient network equipment can be compared to building sports cars - task-oriented, focused and fast. However, unlike track-bound sports cars, ultra-fast(More)
Executive Summary As traffic volumes rise along with the service demand in IP networks, controlling discrete flows and services is increasingly challenging. To support multiservice networks, providers must be able to establish numerous varieties of tunnels and do so with maximum operational efficiency. Carriers also require security, traffic control,(More)
In photosynthetic organisms sulfate constitutes the main sulfur source for the biosynthesis of GSH and its precursor Cys. Hence, sulfur availability can modulate the capacity to cope with environmental stresses, a phenomenon known as SIR/SED (Sulfur Induced Resistance or Sulfur Enhanced Defence). Since chromate may compete for sulfate transport into the(More)
We study two optimization models for the network loading problem in the context of an access/aggregation network, i.e., the interface between the end user communicating to a cell site and the backbone network. The optimization models are applied to two scenarios of ac-cess/aggregation networks: one in which Ethernet ports are used and one in which MPLS(More)
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