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:
Sep. 30, 2025

Filed:

Apr. 19, 2023
Applicant:

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

Inventors:

Linda Dunbar, Plano, TX (US);

Kaippallimalil Mathew John, Addison, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/74 (2022.01); H04L 45/00 (2022.01); H04W 40/02 (2009.01);
U.S. Cl.
CPC ...
H04L 45/38 (2013.01); H04L 45/74 (2013.01); H04W 40/02 (2013.01);
Abstract

A method used by an egress router is disclosed. The egress router receives a first packet from an initial ingress router addressed to an anycast address of an application server. The egress router transmits the first packet to the application server. The egress router receives a second packet from the application server. The second packet is addressed to the initial ingress router. The egress router inserts a sticky destination sub type length value (Sticky-Dst-SubTLV) into a destination option header of the second packet. The egress router transmits the second packet with the Sticky-Dst-SubTLV to the ingress router.


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