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.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Aug. 25, 2016
Applicant:
Fujitsu Limited, Kawasaki-shi Kanagawa, JP;
Inventors:
Rajnath Singh, Murphy, TX (US);
Kevin Corley, McKinney, TX (US);
Chenjiang Hu, Plano, TX (US);
Daniel Cao, Allen, TX (US);
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/437 (2006.01); H04L 12/703 (2013.01); H04L 12/705 (2013.01); H04L 12/721 (2013.01); H04L 12/741 (2013.01); H04L 12/751 (2013.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 45/28 (2013.01); H04L 12/437 (2013.01); H04L 45/18 (2013.01); H04L 45/66 (2013.01);
Abstract
A method and system for buffer flush optimization in Ethernet ring protection (ERP) networks includes generating ERP control messages to include a sub-ring identifier (SUB RING ID) and a topology change notification sequence number (TCN#). When the ERP control messages are received with the sub-ring SUB RING ID and the TCN#, the recipient is enabled to disambiguate multiple redundant ERP control messages. Additionally, a do not flush attribute bit is set for subsequently sent ERP control messages.