Ciena Corporation

Frederic Poulin

David W Boertjes

David Miedema

David Casson Bownass

Andrew D Shiner

Loren Berg

Mark R Hinds

Alex W MacKay

Robert Palmer

Saeid Seydnejad

Michael Hiridjee

A lazy graph construction with compression includes receiving a query related to a network; one of generating a site graph for the network and accessing the site graph already in memory; performing a search on the site graph based on the query; accessing data in a database and generating, in the memory, a plurality of sub-graphs using the data, for the query; and providing a solution to the query based on the search and a search of the plurality of sub-graphs. The site graph can be at a site level and includes network elements and associated connections in the network, and the plurality of sub-graphs can be at an intra-site level including any of component-to-component connections and intra-component connections.

Lazy graph construction with compression and a hybrid graph-relational model for representing a network topology

An optical control system is described which is capable of maintaining and optimizing a fiber-optic transport system within it's domain of control while interacting with other optical systems which are controlled independently. This allows the optical system to be incorporated as a building block into a larger optical network in a relatively arbitrary fashion. This provides an underlying control system for a non-linear system like optics network that is flexible and extensible.

Method and system for controlling optical networks

Growing community of inventors

Gatineau, Canada

Frederic Poulin