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:
Nov. 12, 2019

Filed:

Aug. 28, 2017
Applicant:

Juniper Networks, Inc., Sunnyvale, CA (US);

Inventors:

Harish Sitaraman, Cupertino, CA (US);

Raveendra Torvi, Nashua, NH (US);

Vishnu Pavan Beeram, Ashburn, VA (US);

Chandrasekar Ramachandran, Bangalore, IN;

Assignee:

Juniper Networks, Inc, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/911 (2013.01); H04L 12/703 (2013.01); H04L 12/707 (2013.01); H04L 12/723 (2013.01); H04L 12/913 (2013.01);
U.S. Cl.
CPC ...
H04L 47/728 (2013.01); H04L 45/22 (2013.01); H04L 45/28 (2013.01); H04L 45/50 (2013.01); H04L 47/825 (2013.01); H04L 47/724 (2013.01);
Abstract

The disclosed computer-implemented method may include (1) receiving, at a network node within a network, a packet from another network node within the network, (2) identifying, within the packet, a label stack that includes a plurality of labels that collectively represent at least a portion of a label-switched path within the network, (3) popping, from the label stack, a label that corresponds to a next hop of the network node, (4) determining, based at least in part on the label, that the next hop has experienced a failure that prevents the packet from reaching a destination via the next hop, (5) identifying a backup path that merges with the label-switched path at a next-to-next hop included in the label-switched path, and then (6) forwarding the packet to the next-to-next hop via the backup path. Various other methods, systems, and apparatuses are also disclosed.


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