The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2005
Filed:
Jun. 14, 2001
Peter Steven Pieda, Kanata, CA;
Walter Joseph Carpini, Stittsville, CA;
Cuong Tu Dang, Ottawa, CA;
Kelvin Ross Edmison, Ottawa, CA;
Udo Mircea Neustadter, Carp, CA;
Peter Steven Pieda, Kanata, CA;
Walter Joseph Carpini, Stittsville, CA;
Cuong Tu Dang, Ottawa, CA;
Kelvin Ross Edmison, Ottawa, CA;
Udo Mircea Neustadter, Carp, CA;
Tropic Networks, Kanata, CA;
Abstract
Methods, systems, computer readable media are provided which facilitate the selection of multiple paths through a network represented by a network topology which take into account shared risk which may exist between network resources. The method involves identifying a first path through the network topology from a source node to a destination node, the first path comprising a first sequence of network resources. For at least one shared risk group, a determination is made if any of the at least one shared risk group includes any of the first sequence of network resources, a shared risk group being a group of network resources within the network topology which have a shared risk. A topology transformation is performed of the network topology into a virtual topology which discourages the use of network resources in any shared risk group determined. A second path through the virtual topology is identified from the source node to the destination. The method may be adapted to encourage node and/or edge disjointness.