Introducing data center fabric, the next-generation Facebook data center network

What this post added

This post introduces the 'data center fabric,' a next-generation network architecture for Facebook's data centers. It details the shift from a cluster-based architecture to a disaggregated 'pod' system, aiming to create a single, high-performance network within the entire data center. Key innovations include the use of standard BGP4 with centralized override, a layer3 all-fabric design, and a modular topology with spine switches and pods to handle exponential growth in machine-to-machine traffic and enable rapid scaling.