Routing for a communications network
US7286479B2 · kind B2 · utility
136Cited by
2References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Sep 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/247
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For routing in a communications network, alternate paths to a destination are aggregated into a single composite route, prior to onward propagation of the route. Ideally, aggregation is performed at each point of route convergence in the network. Consequently, failure in only one of the paths does not then require that the composite route be withdrawn, and thus visibility of and reaction to the fault is restricted to parts of the network directly affected. The method is particularly applicable to border gateway protocols employed between Autonomous Systems as in, for example, the Internet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.