Upgrading SDN software by dual-loading modules
US11740887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | May 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45595
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the invention provide a method of upgrading software defined networking (SDN) modules executing on a host computer. While a first version of the SDN modules is executing on the host computer to perform traffic processing, the method loads a second version of the SDN modules alongside the first version of the SDN modules such that the first and second versions of the SDN modules are executing on the host computer at the same time. The method saves runtime states from the first version of the SDN modules, and transfers responsibility for performing traffic processing from the first version of the SDN modules to the second version of the SDN modules. The method then restores the saved runtime states to the second version of the SDN modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.