Intelligent computer network routing using logically centralized, physically distributed servers distinct from network routers
US8166195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2011 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Jan 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A route control architecture allows a network operator to flexibly control routing between the traffic ingresses and egresses in a computer network, without modifying existing routers. An intelligent route service control point (IRSCP) replaces distributed BGP decision processes of conventional network routers with a route computation that is flexible and logically centralized but physically distributed. One embodiment supplements the traditional BGP decision process with a ranking decision process that allows route-control applications to explicitly rank traffic egresses on a per-destination, per-router basis. A straightforward set of correctness requirements prevents routing anomalies in implementations that are scalable and fault-tolerant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.