Hitless upgrade of a network device
US11900096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2022 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Jun 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/148
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device obtains a data package associated with an ISSU procedure and determines, based on the data package, that a control plane of the network device is to be rebooted to facilitate performance of the ISSU procedure. The network device causes, based on determining that the control plane is to be rebooted, a plurality of applications of the network device to stop executing on the network device and a control plane state of the network device to be frozen. The network device then causes the ISSU procedure to be performed. The network causes, based on causing the ISSU procedure to be performed, the control plane state of the network device to be restored and the plurality of applications to resume executing on the network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.