Structured rearranged network for data center and high-performance computing applications

A method in a data center network utilizing a single layer architecture, the method comprising:

• providing a plurality of switches each with a plurality of ports comprising a first set of ports of the plurality of ports comprising network facing ports and a second set of ports of the plurality of ports comprising server facing ports;
• and
• providing a plurality of optical reshufflers configured to randomly interconnect the plurality of switches via the network facing ports of each in a single layer, unstructured network based on a plurality of structural constraints.

A structured random network for data center and high performance computing applications, the structure random network comprising:

• a plurality of optical reshufflers configured to randomly interconnect a plurality of switches via network facing ports of each in a single layer, unstructured network based on a plurality of structural constraints, wherein the plurality of structural constraints comprise
• a single group of ports of the network facing ports of a switch is only used to connect the switch to a neighbor such that two or more groups of ports of the network facing ports are not used for the neighbor, at full capacity, and
• when making connections, preference is provided to a pair of switches with a worst reachability including yet unreached switches.