Method and apparatus for lossless switchover in a redundant switch fabric
US7200107B2 · kind B2 · utility
5Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for lossless switchover in a redundant switch fabric improves the reliability and predictability of a cell reaching its destination without the cell being lost during switch-over through redundant switch fabrics. Ingress and egress buffers are disposed in input and output line cards to maintain the history of transmitted cells. When switch-over occurs, the cells transmission history is used to recover lost cells transparently and with minimal latency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.