Method and system for stateful switch-over in a high-availability point to point system
US7363534B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Sep 30, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for stateful switch-over in a high-availability point to point system is disclosed. The disclosed method includes in one embodiment detecting a change in state of a point to point link between a first peer data processing system and a second peer data processing system; storing state data for the point to point link with an active processor within the first peer data processing system in response to detecting the change in state; and transferring a copy of the state data to a standby processor within the first peer data processing system. The disclosed method includes in another embodiment, transferring data between the first peer data processing system and the second peer data processing system utilizing the active processor; detecting a switch-over condition; and transferring data between the first peer data processing system and the second peer data processing system utilizing the standby processor in response to detecting the switch-over condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.