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:
Aug. 06, 2019
Filed:
Jun. 17, 2014
Nec Europe Ltd., Heidelberg, DE;
NEC CORPORATION, Tokyo, JP;
Abstract
A method of providing access control for a software defined network (SDN) controller includes triggering, by the SDN controller upon receiving a trigger event from a data plane of the software defined network, one or more applications that are installed to run at a control plane of the software defined network atop the SDN controller to react to the trigger event, applying, by the SDN controller before triggering applications due to a trigger event, a conflict resolution scheme. The conflict resolution scheme includes determining all flow spaces that are affected by the trigger event and selecting from these flow spaces a single selected flow space that complies with a predetermined policy, determining, a single master application according to predefined criteria, and triggering, in addition to the master application, only those applications whose reactions to the trigger event do not conflict with the master application.