HIGH-THROUGHPUT ROUTING IN AN OPTICAL NETWORK HAVING A MESH TOPOLOGY

摘要

An optical routing scheme in which an optical network having a mesh topology is configured to route optical packets through an optical routing layout superimposable with the mesh topology, but having a star-like topology. Using this routing layout, the optical network can be configured to transport optical packets from respective ingress nodes, through the hub node located at the star center, to respective egress nodes in a manner that enables a data throughput that approaches the theoretical capacity. No special hardware is required for implementing the hub functionality, and any node of the optical network can be configured to serve as the hub node. The latter feature enables relatively straightforward optimization of the optical routing layout and transmission schedule, e.g., by changing the identity of the hub node and adjusting the transmission schedule at the ingress nodes to synchronize packet arrivals to the hub node.

主权项

1. A method of routing optical signals in an optical network having a mesh topology, the method comprising:
(A) generating an optical routing layout superimposable with the mesh topology of the optical network, said optical routing layout having a hub node and being configured to route any optical packet from a respective ingress node to a respective egress node via the hub node; and (B) generating, based on arrival traffic rates, a transmission schedule for transmitting optical packets, through the optical routing layout, from the respective ingress nodes to the respective egress nodes.