Methods and apparatus for synchronizing and propagating distributed routing databases
US6947963B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Feb 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1854
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of and apparatus for distributing data for a database between a plurality of processors in a distributed processor system involves running a database management system on a first plurality of processors in conjunction with a plurality of protocols that generate or amend data for the database. Data is distributed from servers to clients registered in a server-client relationship. Server-client relationships may also be registered between a second, and a third plurality of processors that do not run protocols generating or amending data for the database. Fault tolerant redundancy is provided by clients registering with two or more servers, one as a primary and another as a secondary, and activating the secondary if the primary fails. The method is particularly applicable to scalable data packet routers having a plurality of processors operating on different line and control cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.