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. 10, 2024

Filed:

Feb. 21, 2023
Applicant:

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

Inventors:

Ali Sajassi, Alamo, CA (US);

Samir Thoria, Saratoga, CA (US);

Lukas Krattiger, Pleasanton, CA (US);

Manoj Kumar Pandey, San Ramon, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 61/5053 (2022.01); H04L 9/40 (2022.01); H04L 61/5014 (2022.01); H04L 101/622 (2022.01);
U.S. Cl.
CPC ...
H04L 61/5053 (2022.05); H04L 61/5014 (2022.05); H04L 63/0236 (2013.01); H04L 63/101 (2013.01); H04L 2101/622 (2022.05);
Abstract

Systems and techniques are provided for synchronizing DHCP snoop information. In some examples, a method can include, performing, by a first PE device from a plurality of PE devices, DHCP snooping of a first plurality of DHCP messages between a DHCP client and a DHCP server, wherein the plurality of PE devices is part of an ethernet segment for multihoming the DHCP client. In some aspects, the method includes determining, based on snooping the first plurality of DHCP messages, an association between an IP address corresponding to the DHCP client and a MAC address corresponding to the DHCP client. In some examples, the method includes sending, by the first PE device to at least one other PE device from the plurality of PE devices, a first route advertisement that includes the association between the IP address corresponding to the DHCP client and the MAC address corresponding to the DHCP client.


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