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:
May. 26, 2009
Filed:
May. 17, 2002
Paola Iovanna, Rome, IT;
Roberto Sabella, Rome, IT;
Pietro Tou, Rome, IT;
Gianpaolo Oriolo, Rome, IT;
Paola Iovanna, Rome, IT;
Roberto Sabella, Rome, IT;
Pietro Tou, Rome, IT;
Gianpaolo Oriolo, Rome, IT;
Telefonaktiebolaget L M Ericcson (Publ), Stockholm, SE;
Abstract
A method is provided for routing data packets across a multi-layer network which includes a plurality of nodes, a logical level provided with a plurality of logical links and a physical level provided with a plurality of physical links, each of the logical links corresponding to at least one of the physical links, the method comprising the steps of assigning a weight to each logical link with respect to a first critical constraint in the logical level, refining the weight assigned to each logical link with respect to a second critical constraint in the physical level and, based on the weights assigned to each link, computing a path at the logical level connecting a start node to an end node for the transport of the data packets.