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:
Jan. 08, 2019

Filed:

Jan. 30, 2017
Applicant:

Fujitsu Limited, Kawasaki-Shi, Kanagawa OT, JP;

Inventors:

Biaodong Cai, San Ramon, CA (US);

Richard Dunsmore, McKinney, TX (US);

Rod Naphan, McKinney, TX (US);

Sam Lisle, Fairview, TX (US);

Deepak Patel, Moorpark, CA (US);

Iqbal Syed, Plano, TX (US);

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/58 (2006.01); H04Q 11/00 (2006.01); H04L 12/741 (2013.01); H04L 12/931 (2013.01); H04J 3/16 (2006.01); H04L 29/12 (2006.01); H04L 12/24 (2006.01); H04B 10/032 (2013.01); H04L 12/40 (2006.01); H04L 12/413 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0062 (2013.01); H04B 10/032 (2013.01); H04J 3/1652 (2013.01); H04L 12/40 (2013.01); H04L 12/413 (2013.01); H04L 41/0659 (2013.01); H04L 41/0677 (2013.01); H04L 45/745 (2013.01); H04L 49/351 (2013.01); H04L 49/70 (2013.01); H04L 61/2038 (2013.01); H04L 61/6022 (2013.01); H04Q 11/0005 (2013.01); H04J 2203/0012 (2013.01); H04J 2203/0026 (2013.01); H04J 2203/0085 (2013.01); H04Q 11/0066 (2013.01); H04Q 2011/0073 (2013.01);
Abstract

Methods and systems for Ethernet fabric protection in a disaggregated OTN switching system that include PIU modules each having multiple ports for OTN to Ethernet transceiving and an Ethernet fabric as a switching core are disclosed. An OTN over Ethernet module in each of the PIU modules may enable various OTN functionality to be realized using the Ethernet fabric which may include multiple Ethernet switches. A first PIU module may detect a fault condition on an Ethernet fabric plane of the Ethernet fabric. In response to the detection, the OTN switching system may transmit the fault condition to other PIU modules to redirect optical data unit traffic away from the fault on the Ethernet fabric plane.


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