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:
Oct. 22, 2024

Filed:

Nov. 04, 2022
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Huaimo Chen, Bolton, MA (US);

Zhibo Hu, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 45/02 (2022.01); H04L 45/50 (2022.01); H04L 47/2441 (2022.01); H04L 67/56 (2022.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 45/04 (2013.01); H04L 45/50 (2013.01); H04L 47/2441 (2013.01); H04L 67/56 (2022.05);
Abstract

A Proxy Forwarding node configured to advertise Segment Routing (SR) proxy forwarding capability of the Proxy Forwarding node for neighboring nodes of the Proxy Forwarding node using extensions to interior gateway protocol (IGP) for Proxy Forwarding for enabling an ingress node to the SR Traffic Engineering (SR-TE) path to continue to forward the traffic without modifying a segment list of the SR-TE path that includes a node segment identifier (SID) of a failed neighboring node of the Proxy Forwarding node. When the Proxy Forwarding node receives traffic targeting the failed neighboring node, the Proxy Forwarding node performs SR proxy forwarding for the failed neighboring node by forwarding the traffic towards a destination of the traffic in a direction that avoids the failed neighboring node for a period of time after the IGP has converged.


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