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:
Dec. 10, 2013

Filed:

Sep. 30, 2011
Applicants:

Abel Dasylva, Gatineau, CA;

Delfin Montuno, Kanata, CA;

Peter Ashwood Smith, Gatineau, CA;

Francois Blouin, Gatineau, CA;

Tadeusz Drwiega, Kanata, CA;

Inventors:

Abel Dasylva, Gatineau, CA;

Delfin Montuno, Kanata, CA;

Peter Ashwood Smith, Gatineau, CA;

Francois Blouin, Gatineau, CA;

Tadeusz Drwiega, Kanata, CA;

Assignee:

Rockstar Consortium US LP, Plano, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04J 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A set of critical nodes or links is identified on the network through which most of the shortest paths on the network occur. Each node compares their distance to end points on the network with a distance between the end points and each of the distinct critical nodes. Where the distance between the end points and the critical nodes is shorter than the distance between the end points and the node, the node is not on the shortest path and does not install forwarding state. Where the distance between the end points and the critical node is larger than or equal to the distance between the end points and the node, the node may be on the shortest path between the pair of end nodes and installs forwarding state. Installation of forwarding state may cause packet duplication, but determining forwarding state is dramatically simplified.


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