Hot standby method, apparatus, and system
US11416359B2 · kind B2 · utility
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18References
18Claims
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Assignee
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Key dates
| Filing date | Mar 23, 2018 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Jun 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present disclosure provide a hot standby method, apparatus, and system. The method includes: saving, by an active device, first user information of the active device into a local cache module of the active device and sending, by the active device, the first user information to a remote cache module of a first standby device based on preset correlation information. In response to detecting that the active device becomes faulty, the first standby device obtains the first user information from the remote cache module of the first standby device and restores the first user information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.