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:
Feb. 04, 2014
Filed:
Aug. 23, 2010
Paola Iovanna, Rome, IT;
Giulio Bottari, Leghorn, IT;
Annikki Welin, Solna, SE;
Francesco Paolucci, Pisa, IT;
Filippo Cugini, Fidenza, IT;
Piero Castoldi, Parma, IT;
Paola Iovanna, Rome, IT;
Giulio Bottari, Leghorn, IT;
Annikki Welin, Solna, SE;
Francesco Paolucci, Pisa, IT;
Filippo Cugini, Fidenza, IT;
Piero Castoldi, Parma, IT;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A system, method, and node for a Routing Controller (RC) to obtain from a Path Computation Element (PCE), network resource path metrics across a plurality of domains in a communication network in which each domain includes a plurality of Border Nodes (BNs). The RC sends to the PCE, a first message requesting a first path computation between each pair of BNs. The first message contains a maximum metric-value that a path computation must not exceed for a Path Computation Client (PCC) to consider the path computation acceptable. The RC then sends a second message requesting the PCE to compute a subsequent path computation for each BN pair for which the first path computation did not exceed the maximum metric-value. The second message contains a minimum metric-value that a path metric must exceed for the PCC to consider the path metric acceptable. The RC then receives the computed subsequent path computation.