Hyperscale Data Center Networks with Transparent HyperX Architecture

 Due to rapidly growing cloud-based applications and services, data center networks handle huge traffic and they started receiving significant attention recently. In this article, we first review various trends in data center network architectures. Then we propose a novel hyperscale architecture named Transparent HyperX (TH) and compare it to existing real-world architectures. The TH concept is inspired by the conventional HyperX topology, but designed with a number of additional all-optical diagonal links that maintain pod-to-pod path cost below two hops and ensure more transparent connectivity between pods throughout the entire data center. This reduction in path cost not only results in lower latency, but also saves on the number of switches and transponders, which eventually reduces the power consumption. This architecture also offers high scalability and supports over 1 million servers using 100 radix switches.