ArcOS®: Building Scalable, Automated, Multi-Tenant Data Center Fabrics | Arrcus

As application-centric digital infrastructures have become mainstream, data center network architectures (across both enterprises and providers) are firmly rooted in routing-centric designs leaving behind the siloed switching-centric designs of the past. Starting with the hyperscale cloud providers and extending to most major enterprises, multi-tier Clos topologies (“Leaf-Spine”) are the norm today and into the foreseeable future. These designs enable wide fan-out bandwidth for east-west host-to-host communication, Layer 3 routing to the top-of-rack (or even into the server host), and consistent latency metrics.