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:
Dec. 19, 2023

Filed:

Mar. 14, 2022
Applicant:

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

Inventors:

Huaimo Chen, Bolton, MA (US);

Dean Cheng, Los Altos, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 45/021 (2022.01); H04L 45/00 (2022.01);
U.S. Cl.
CPC ...
H04L 45/021 (2013.01); H04L 45/26 (2013.01); H04L 45/32 (2013.01);
Abstract

A network node (N) for handling IGP flooding topology (FT) inconsistency by obtaining a new FT and setting a FT flag field (FT field) in a data packet (DP) to indicate whether a link between Nand a second node (N) is on the new FT. Ntransmits the DP to N. Nreceives a second DP from Nthat includes the FT field set by Nto indicate whether the link between the network node and Nis on the new FT as determined by N. Nsets a FT inconsistency field in a link state packet to indicate an inconsistency in the new FT when the FT field set by Nand the FT field set by Nare different for a given time. Ndistributes the LS to at least one node in the network.


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