Beyond fat-trees without antennae, mirrors, and disco-balls
Simon Kassing, Asaf Valadarsky, Gal Shahaf, Michael Schapira, Ankit Singla · 2017
Recent studies have observed that large data center networks often have a few hotspots while most of the network is underutilized. Consequently, numerous data center network designs have explored the approach of identifying these communication hotspots in real-time and eliminating them by leveraging flexible optical or wireless connections to dynamically alter the network topology. These proposals are based on the premise that statically wired network topologies, which lack the opportunity for such online optimization, are fundamentally inefficient, and must be built at uniform full capacity to handle unpredictably skewed traffic.