Method and apparatus for updating system software for a plurality of data processing units in a communication network
US5008814A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1988 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Aug 15, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In maintaining a communication network of processing units distributed in multiple nodes linked by communication channels, system software in a plurality of data processing units is updated by first installing the updated software in a first node. The updated software is transmitted through the network to other nodes. A trial use of the updated software is initiated in the nodes. If failures of the updated software are detected in a node, that node will be restored to the original software version. If the trial use of the updated software is completed successfully in a node, the updated version will be installed as a preferred operational version in the node. a
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.