System and method for providing a link state database (LSDB) snapshot for neighbor synchronization
US7248579B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2002 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/03
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus resynchronizes a link state database (LSDB) of router with the LSDB of a neighboring router (“neighbor”) while maintaining an existing adjacency with the neighbor in a computer network. An out-of-band resynchronization process executes on the routers to essentially maintain the existing adjacency between the router and neighbor, rather than resetting that adjacency as defined by a conventional resynchronization approach. By keeping the adjacency “up” from the perspective of a routing protocol, such as the Open Shortest Path First routing protocol, the adjacency can be used for continued data traffic to and from the router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.