Reconfigurable dual-ring network redundancy
US11201759B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2020 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/421
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network communication system may include intelligent electronic devices (IEDs) in a dual-ring communication network. A software-defined network (SDN) device may be programmed by a removable or disconnectable SDN controller to control the flow path of data packets to the IEDs in the dual-ring network. A first ring of the dual-ring communication network may be dedicated to high priority data packets, and a second ring of the dual-ring communication network may be dedicated to low priority data packets. The SDN device may implement various levels of redundancy depending on the number and location of link failures detected. A first level of redundancy may direct high priority data packets in the opposite direction, and a second level of redundancy may direct high priority data packets onto the other ring normally used for low priority data packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.