Network transparent OSPF-TE failover
US7573811B2 · kind B2 · utility
5Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Sep 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing link state routing protocol redundancy in a router. A router includes an active controller and at least one standby controller. An internal adjacency relationship is established between the active controller and the standby controller to enable automatic switchover upon disablement of said active controller. The adjacency relationship is established by mirroring configuration data on a standby controller from an active controller, synchronizing Hello information between the active and standby controllers, and synchronizing database information between the active and standby controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.