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:
Apr. 13, 2021

Filed:

Jul. 08, 2019
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Jakob Heitz, Santa Clara, CA (US);

Alfred C. Lindem, III, Cary, NC (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/50 (2006.01); H04L 12/755 (2013.01); H04L 12/721 (2013.01);
U.S. Cl.
CPC ...
H04L 45/021 (2013.01); H04L 45/123 (2013.01);
Abstract

Techniques for updating a routing table based on a single message are described. One technique includes receiving at a first network device a node message from a second network device. The node message includes a sequence number and a list of link state(s) originated by the second network device. The first network device determines whether to withdraw one or more link states originated by the second network device and maintained in a routing table of the first network device based on the sequence number and the list of the link state(s) within the node message. The routing table is updated based on the determinations.


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