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:
Apr. 17, 2018

Filed:

Jul. 22, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Dayavanti G. Kamath, Bangalore, IN;

Tejas S. Nevrekar, Bangalore, IN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/721 (2013.01);
U.S. Cl.
CPC ...
H04L 41/12 (2013.01); H04L 41/0672 (2013.01); H04L 45/38 (2013.01);
Abstract

One or more processors receive a notification of a failure of a first delivery device of a plurality of delivery devices of an OpenFlow network, to deliver a data packet. One or more processors determine the flows of flow tables belonging to delivery devices that are affected as a result of the failure of the first delivery device. The flows are determined by accessing an index of flow mappings maintained in cache storage in which at least one of the affected flows includes a pattern of information fields and actions that match a pattern of information fields and actions of the data packet, and one or more processors send instructions to the delivery devices of the network to perform an asynchronous activity on respective flow tables of the delivery devices that include the flows affected as a result of the failure of the first delivery device.


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