Controller communications in access networks
US10511524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/783
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Control plane management based on the physical topology of nodes in software-defined networks (SDNs) is provided. A tree structure in an SDN such as an access network is identified. Control plan management is provided using the tree structure. A controller configures changes in the SDN and provides notifications to other controllers after configuring devices under its control. A controller prioritizes the status of downstream and/or upstream devices based on a type or direction of data flow when making configuration decisions. A controller provides notifications to other controllers by prioritizing notifications based on the hierarchical position of devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.