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:
Oct. 21, 2025

Filed:

Oct. 03, 2023
Applicant:

Hewlett Packard Enterprise Development Lp, Spring, TX (US);

Inventors:

Vinayak Joshi, Bangalore, IN;

Venkatavaradhan Devarajan, Bangalore, IN;

Balaji Sankaran, Bangalore, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/28 (2022.01); H04L 45/42 (2022.01); H04L 45/745 (2022.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04L 45/42 (2013.01); H04L 45/745 (2013.01);
Abstract

A network management system (NMS) for provisioning and managing an overlay network is provided. During operation, the NMS can determine that a loop associated with a media access control (MAC) address is detected in the network. The NMS can probe a first switch in the loop by instructing the first switch to observe the MAC address for a predetermined period. The NMS can receive a first message indicating a first set of ports of the first switch observing the MAC address. The NMS can probe an upstream switch reachable via each of the first set of ports by instructing the upstream switch to observe the MAC address for the predetermined period. Here, observing the MAC address at an upstream port of the upstream switch causes further upstream probing. Based on probing the switches in the loop, the NMS can determine one or more loop origination points (LOPs) for the loop.


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