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:
Jul. 30, 2019
Filed:
Aug. 21, 2017
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
Embodiments disclose a method for acquiring, by a switch deployed in a software defined network (SDN), an exact flow entry, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller being configured to communicate with each SDN switch in an inband communication manner. The method includes establishing, by a first SDN switch, a reliable connection to the SDN controller, and sending a first control message based on a packet corresponding to a protocol for the reliable connection. Path information of the first SDN switch is added to the control message. Each SDN switch that receives the first control message adds path information of each SDN switch to the first control message, so that the SDN controller is provided with an entire path, so as to deliver a flow table to the first SDN switch.