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:
Feb. 15, 2022

Filed:

Feb. 20, 2019
Applicant:

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

Inventors:

Harsha Bharadwaj, Bangalore, IN;

Nagendran Venugopalan, Bangalore, IN;

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 29/08 (2006.01); H04B 10/077 (2013.01); H04L 1/24 (2006.01);
U.S. Cl.
CPC ...
H04L 43/0817 (2013.01); H04B 10/077 (2013.01); H04L 1/243 (2013.01); H04L 43/0811 (2013.01); H04L 43/14 (2013.01); H04L 43/50 (2013.01); H04L 67/1097 (2013.01);
Abstract

One embodiment is a method including configuring a first network element of a fibre channel ('FC') network as a generator element, wherein the generator employs a link diagnostic protocol to cause a second network element comprising a peer of the first network element as a reflector element, wherein the first and second elements are connected via a link; entering a first diagnostic phase, wherein in the first diagnostic phase, diagnostic capabilities of the first and second elements are determined; and subsequent to completion of the first diagnostic phase, entering a second diagnostic phase in which a deep loopback test is performed, wherein the deep loopback test comprises a frame level loopback test for exposing an issue in a path between the first and second network elements beyond a Media Access Control ('MAC') layer.


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