Method and system of providing redundancy in a network device
US7817541B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2006 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13348
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for redundancy in a network device are disclosed. An exemplary device comprises: a controller residing on a data forwarding element (DFE), the DFE performing data forwarding operations; and a first and a second control processor. Each of the control processors has either an active role or a standby role with respect to the DFE controller. The active-role control processor communicates with the DFE to configure the DFE forwarding operations and receives at least some communications from the DFE controller over a virtual channel. The DFE controller directs traffic on the virtual channel that is destined for the active-role control processor to either the first or the second control processor based on which of the control processors currently has the active role.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.