Reachability matrices spanning multiple domains in an optical network

US8452176B2 · kind B2 · utility

Assignee

• AT&T Intellectual Property I, L.P. · US

Inventors

• Robert Duncan Doverspike · Tinton Falls, US
• Guangzhi Li · Madison, US
• Angela Chiu · Holmdel, US
• Monica Naukam Gerhardstein · Troy, US
• Yici Guo · Marlboro, US
• Dongmei Wang · Madison, US
• Dahai Xu · Livingston, US

Key dates

• Filing date: Feb 18, 2011
• Grant date: May 28, 2013
• Expiry date: Aug 25, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J14/026
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method of providing routes through heterogeneous subsystems in an optical network is disclosed, which includes generating, using a processing device, a reachability matrix based on subnetwork information; and generating, using the processing device, a topology associated with the optical network using the reachability matrix. The method also includes determining, using the processing device, a shortest path through the optical network using the reachability matrix and a cost model graph; and displaying, using a graphical user interface, subsystems associated with the shortest path, regeneration locations associated with the shortest path, wavelengths associated with the shortest path, the topology, and the shortest path. Corresponding apparatus and computer-readable storage media are also disclosed.