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:
Jun. 04, 2019

Filed:

Jan. 14, 2015
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Maitreya Mukhopadhyay, Allen, TX (US);

Michael Colven, Dallas, TX (US);

Wenao Hu, San Jose, CA (US);

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/437 (2006.01); H04L 12/46 (2006.01); H04L 12/705 (2013.01);
U.S. Cl.
CPC ...
H04L 12/462 (2013.01); H04L 45/18 (2013.01);
Abstract

A method and system for breaking loops in an Ethernet network that supports connectionless and connection-oriented Ethernet. A loop-breaking protocol may be used to detect a loop among a plurality of network elements and to identify a port to block in order to break the loop. The network elements may stop the flow of connectionless Ethernet traffic, while continuing to allow connection-oriented Ethernet traffic to pass. The loop-breaking protocol may be further configured to analyze and understand connection-oriented Ethernet within the network so that connection-oriented Ethernet paths are accounted for during loop detection and prevention.


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