Abstract: The present invention provides systems and methods for programming connections through a multi-stage switch fabric. The present invention utilizes load-balancing, blocking recovery, background rebalancing, and rollback algorithms to select and manage connection balance on center stage switches in the multi-stage switch fabric for new and modified connections. The load-balancing algorithm attempts to spread the multi-connection slices across center stage switches as evenly as possible, to increase the probability that future multi-connection slices can be added without needing to rearrange existing slices. Advantageously, the present invention is efficient by making the best possible local decision for one multi-connection slice at a time, without considering other multi-connection slices that may also need center switch assignments. Additionally blocking recovery, rollback and background rebalancing features are also supported.

Abstract: The present invention provides systems and methods for parallel multi-core control plane processing with optical networks. This enables optical switches utilizing control planes, such as G.ASON, to meet scalability and performance requirements of evolving networks. The multi-core processing is configured to handle call control for sub-network connections (SNCs) (e.g., requests for creates, failures, restores, routing). Additional control plane functions, such as signaling and related interfaces, routing connection admission control (CAC), naming and addressing, and the like, can also be processed in parallel.

Abstract: The present invention provides systems and methods for parallel multi-core control plane processing with optical networks. This enables optical switches utilizing control planes, such as G.ASON, to meet scalability and performance requirements of evolving networks. The multi-core processing is configured to handle call control for sub-network connections (SNCs) (e.g., requests for creates, failures, restores, routing). Additional control plane functions, such as signaling and related interfaces, routing connection admission control (CAC), naming and addressing, and the like, can also be processed in parallel.

Abstract: The present invention provides systems and methods for programming connections through a multi-stage switch fabric. The present invention utilizes load-balancing, blocking recovery, background rebalancing, and rollback algorithms to select and manage connection balance on center stage switches in the multi-stage switch fabric for new and modified connections. The load-balancing algorithm attempts to spread the multi-connection slices across center stage switches as evenly as possible, to increase the probability that future multi-connection slices can be added without needing to rearrange existing slices. Advantageously, the present invention is efficient by making the best possible local decision for one multi-connection slice at a time, without considering other multi-connection slices that may also need center switch assignments. Additionally blocking recovery, rollback and background rebalancing features are also supported.