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.

Date of Patent:
Aug. 25, 2020

Filed:

Dec. 23, 2014
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Francesco Lazzeri, Genoa, IT;

Gianmarco Bruno, Genoa, IT;

Jeroen Nijhof, Genoa, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/721 (2013.01); H04L 12/733 (2013.01);
U.S. Cl.
CPC ...
H04L 45/124 (2013.01); H04L 45/20 (2013.01); H04L 45/123 (2013.01);
Abstract

A method of path computation in a segment routing network, the network comprising a set of nodes. The method comprises receiving a request for computation of a path between end nodes in the network, the request including a constraint. The method further comprises determining a segment identifier-optimised path defined by a stack of one or more segment identifiers, wherein the segment identifier-optimised path meets the constraint. The determining of the segment identifier-optimised path comprises analyzing a topology of the network comprising: at least a sub-set of the nodes, links between adjacent nodes indicative of possible paths between the nodes, and virtual links between pairs of nodes indicative of possible paths between the pairs of nodes. The method further comprises outputting at least one segment identifier which defines the determined path.


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