Systems and methods for discovery of a controller in openflow networks
US9729948B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2016 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for discovery of a controller in an OpenFlow network may include using an OpenFlow capable switch to discover the controller without the help of other components, such as DHCP. The link discovery protocol may be configured on the switch and the discovery process may use an out-of-band or an in-band communication. In one example, a link discovery protocol packet is sent out of all ports of a switch that meet the eligibility criteria. The response is guaranteed because of a TTL like mechanism in the packet. Each port on a switch that receives this link discovery protocol packet takes an action depending on its current state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.