Method and apparatus for transparently providing a failover network device
US6108300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Aug 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for transferring a network function from a primary network device to a backup network device. The backup network device first detects that the primary network device has failed. The backup network device then sends a message to the primary network device indicating to the primary network device that the primary network device has failed. The IP address of the backup network device changes from a standby IP address to an active IP address, and the IP address of the primary network device changes from the active IP address to the standby IP address. Packets sent to the active IP address are then handled with the backup network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.