Synchronization of OpenFlow controller devices via OpenFlow switching devices
US9137174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Mar 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An OpenFlow switching device of an OpenFlow network sends a message including a flow rule received from a first OpenFlow controller device currently active within the OpenFlow network to a second OpenFlow controller device also currently active within the OpenFlow network. As such, the second OpenFlow controller device stays in synchronization with the first OpenFlow controller device. Upon a third OpenFlow controller device becoming newly active within the OpenFlow network, the OpenFlow switching device sends a message including flow rules of the switching device's flow table to the third OpenFlow controller device. As such, the third OpenFlow controller device becomes immediately up-to-date with respect to this flow table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.