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:
Mar. 14, 2017

Filed:

Mar. 23, 2012
Applicants:

Balázs Varga, Budapest, HU;

Peter Balázs Gerö, Budapest, HU;

Shahryar Khan, Rönninge, SE;

Inventors:

Balázs Varga, Budapest, HU;

Peter Balázs Gerö, Budapest, HU;

Shahryar Khan, Rönninge, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/721 (2013.01); H04L 12/46 (2006.01); H04L 12/703 (2013.01);
U.S. Cl.
CPC ...
H04L 45/68 (2013.01); H04L 12/4641 (2013.01); H04L 41/12 (2013.01); H04L 45/28 (2013.01);
Abstract

A pseudowire redundancy network comprises a plurality of pseudowires (PW, PW) attached to a provider edge node (). For selecting an active pseudowire (PW) to be used for forwarding user traffic, the provider edge node () determines a local preferential forwarding status for each of the pseudowires (PW, PW). The determined preferential forwarding status is active for no more than one of the pseudowires (PW, PW). The provider edge node () indicates the determined local preferential forwarding status of the pseudowires (PW, PW) to remote provider edge nodes (). Further, the provider edge node () receives indications of a remote preferential forwarding status for each of the pseudowires (PW, PW) from the remote provider edge nodes (). The provider edge node () then selects that one of the pseudowires (PW, PW) as active for which both the local preferential forwarding status and the remote preferential forwarding status is active.


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