US Patent 7315693 Dynamic route discovery for optical switched networks

Patent 7315693 was granted and assigned to Intel on January, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Intel

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7315693

Date of Patent

January 1, 2008

Patent Application Number

10691712

Date Filed

October 22, 2003

Patent Primary Examiner

‌

M. R. Sedighian

Patent abstract

An architecture and method for performing dynamic route discovery and variable time slot reservation provisioning within optical-switched networks. The method employs extensions to the RSVP-TE signaling protocol, which uses various messages to reserve network resources. Under an overlay routing embodiment, network resources are reserved via a resource reservation message that is sent hop-by-hop between switching nodes, wherein the next hops are dynamically selected based on routing tree tables in the switching nodes. The concatenation of hops forms the route for the reserved lightpath. The resource reservation request is passed between nodes defined by a dynamically routed path, and resource availability is confirmed for the entire lightpath prior to confirming the resource reservations.