Virtual ring configuration method and virtual ring system
US5754528A · kind A · utility
16Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | May 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a virtual ring configuration method and a virtual ring system, a plurality of nodes are set on a plurality of rings and the rings are cross-connected. Each node has a transmitting unit and a receiving unit for sending and receiving service information between the nodes by the SONET path. A judging unit is provided for judging whether or not there is an input of obstruction information by the SONET path. A path protection switch is provided at a receive terminal, which switches the receive terminal which receives the SONET path in cases where the judging unit judges that obstruction information has been received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.