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:
Feb. 11, 2025

Filed:

Dec. 27, 2021
Applicant:

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

Inventors:

Jun Liu, Beijing, CN;

Yaokun Zhang, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/00 (2022.01); H04L 45/02 (2022.01); H04L 45/28 (2022.01); H04L 45/42 (2022.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 45/02 (2013.01); H04L 45/28 (2013.01); H04L 45/42 (2013.01);
Abstract

This application discloses a method and apparatus for implementing entry backup. When a first network device needs to back up information about a first entry stored in the first network device to a second network device, the first network device generates a first BGP message that includes first entry information, and sends the first BGP message to the second network device, where the first BGP message is used to advertise a newly defined entry backup route to the second network device, or the first BGP message includes an extended community attribute. After receiving the first BGP message, the second network device may obtain a second entry based on the first BGP message, and store information about the second entry, where the second entry is a backup entry of the first entry.


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