Abstract: Aspects and implementations of the present disclosure are directed to an indirect generalized hypercube network in a computer network facility. Servers in the computer network facility participate in both an over-subscribed fat tree network hierarchy culminating in a gateway connection to external networks and in an indirect hypercube network interconnecting a plurality of servers in the fat tree. The participant servers have multiple network interface ports, including at least one port for a link to an edge layer network device of the fat tree and at least one port for a link to a peer server in the indirect hypercube network. Servers are grouped by edge layer network device to form virtual switches in the indirect hypercube network and data packets are routed between servers using routes through the virtual switches. Routes leverage properties of the hypercube topology. Participant servers function as destination points and as virtual interfaces for the virtual switches.

Abstract: Aspects and implementations of the present disclosure are directed to an indirect generalized hypercube network in a data center. Servers in the data center participate in both an over-subscribed fat tree network hierarchy culminating in a gateway connection to external networks and in an indirect hypercube network interconnecting a plurality of servers in the fat tree. The participant servers have multiple network interface ports, including at least one port for a link to an edge layer network device of the fat tree and at least one port for a link to a peer server in the indirect hypercube network. Servers are grouped by edge layer network device to form virtual switches in the indirect hypercube network and data packets are routed between servers using routes through the virtual switches. Routes leverage properties of the hypercube topology. Participant servers function as destination points and as virtual interfaces for the virtual switches.

Abstract: Systems and methods of configuring a computer network are provided. The network can include a first stage of M nodes and a second stage of N nodes. Each node in the first stage can form F communication links with nodes in the second stage and each node in the second stage can form S communication links with nodes in the first stage. Nodes in the first stage are connected to each other only through communication links connecting nodes in the first stage to nodes in the second stage. Communication links between the nodes can be assigned such that the minimum value of the throughput between any pair of nodes in the first stage is maximized.

Abstract: The present disclosure describes systems and methods for reconfiguring the links made by a plurality of optical circuit switches between the nodes of the first layer and the nodes of the second layer that reduces the throughput loss when the network transitions form a first logical topology to a second logical topology. More particularly, the first logical topology is realized by a specific physical topology, while the second logical topology may be realized by one or more physical topologies. The disclosure describes a method for selecting a second physical topology from the one or more physical topologies that will realize the second logical topology while reducing the number of links within each of the optical circuit switches that must be reconfigured (i.e, disconnected from their present ports and reconnected to new ports within the optical circuit switch) to transition from the first to second logical topology.