Data center (DC) networking solutions covered in this research provide logical and/or physical network connectivity within enterprise data centers. Organizations' data center networking requirements have continued to evolve rapidly after a period of architectural stability that lasted more than 15 years. While speed, density and scale increased, the underlying architecture continued to rely on an oversubscribed three-tier hierarchical approach. Over the past two years, organizations have increasingly adopted a two-tier fat-tree architecture that delivers high cross-sectional bandwidth for east-west traffic while increasing flexibility and reducing cost.
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