Openflow data channel and control channel separation
US10212083B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A control channel for routing management messages to or from an OpenFlow controller is separated from a reserved port within a data channel for routing unknown data packets to or from the OpenFlow controller. The port may be reserved by setting a reserved port flag. A packet routing table may include a table miss entry that indicates the unknown packets should be routed via the reserved port. By utilizing the reserved port to route unknown packets, the unknown packets do not traverse into the control channel, and the separation of the OpenFlow control channel from the OpenFlow data channel is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.