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:
Jan. 17, 2017
Filed:
Mar. 04, 2013
Takahiko Murakami, Tokyo, JP;
Takahiko Murakami, Tokyo, JP;
NEC CORPORATION, Toyko, JP;
Abstract
A network system of the present invention includes a switch and controllers. The switch processes on a received packet in accordance with a flow entry in which are defined a rule and an action. The controllers set the flow entry to a flow table of the switch. The switch assigns a flow table to each controller, searches when receiving a packet from outside for a flow table matching with the packet in all flow tables, ignores a flow entry set by a controller of which a status of connection is invalid among flow entries matching with the packet and processes the packet in accordance with an action of a flow entry set by a controller of which a status of connection is valid.