Scalable, optimal flow routing in datacenters via local link balancing
Siddhartha Sen, David Shue, Sunghwan Ihm, Michael J. Freedman · 2013
Datacenter networks should support high network utilization. Yet today's routing is typically load agnostic, so large flows can starve other flows if routed through overutilized links. Even recent proposals like centralized scheduling or end-host multi-pathing give suboptimal throughput, and they suffer from poor scalability and other limitations.