Ensemble Routing for Datacenter Networks
This paper describes Hash-Based Routing (HBR), an architecture that enhances Ethernet to support dynamic management for multipath networks in scalable datacenters. This work enhances HBR to support flow ensemble management for large-scale networks of arbitrary topology. Ensemble routing eliminates measurement and control for individual flows and instead manages using summary data thus providing a unique capability for reactive datacenter-wide network management. HBR provides seamless interoperability with Ethernet and supports the attachment of unmodified L2 hosts and devices including FCoE devices within converged fabrics.