Method for acquiring, by SDN switch, exact flow entry, and SDN switch, controller, and system
US10367718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.