Connection protection between clients and optical cross-connect switches
US6882765B1 · kind B1 · utility
20Cited by
110References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2000 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Dec 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0083
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides methods, apparatus and systems for protecting connections between optical cross-connect switches and client equipment. A connection failure is detected, signaled, and a switch made by the client equipment and the optical cross-connect switch to a protection connection between them so as to minimize service interruption. An out-of-band channel or an in-band channel can be used to signal the connection failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.