Dandelion: A Locally-High-Performance and Globally-High-Scalabil...

The increasing customer demand is driving modern data centers to embrace the freely-expandable network architecture. Unfortunately, state-of-the-art freely-expandable networks suffer from either the large granularity of expansion or the prohibitive implementation cost. Furthermore, a recent research showed that data center traffic tends to be highly clustered. Based on above observations, this paper proposes a freely-expandable network architecture, namely the dandelion. Dandelion is a two-level