US Patent 11252079 High performance software-defined core network

A system comprising nodes configured to form a network including virtual links in an overlay network provisioned over an underlay network. The system includes tenant networks formed in the network, and each tenant network corresponds to a tenant of the network. The system includes control planes, and each control plane is a component of a tenant network and includes routing algorithms corresponding to traffic classes. The tenant network is configured to use feedback data of link conditions of the tenant network with at least one routing algorithm to control routing of tenant traffic of a corresponding traffic class.