Data plane restart without state change in a control plane of an intermediate network node
US6785843B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jul 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/563
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and technique restarts a data plane of an intermediate node, such as an aggregation router, of a computer network without changing the state of a control plane in the router. The aggregation router comprises a control plane that includes a supervisor processor configured to manage traffic forwarding operations of the node. To that end, the supervisor processor maintains a current state of the control plane pertaining to, e.g., routing protocols and interface states of line cards within the router. The aggregation router further comprises a data plane that includes hardware components, such as a forwarding engine, configured to perform forwarding operations for data forwarded by the router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.