Ring type ethernet system, ring type switch, ring connection control circuit, ring type ethernet system control method, ring type switch control method and ring connection control method
US8320387B2 · kind B2 · utility
2Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jan 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/462
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Ring type switches 10X, 10Y that connect to two sub-rings 51, 52 are provided to maintain Ethernet communications between sub-rings even when a fault occurs in a ring type switch. By carrying out redundant control processing based on the operating status of itself and the companion in these ring type switches 10X, 10Y, one operates as the currently used system and carries out relay connections between the sub-rings 51, 52 and the other operates as a standby system and stops relay connections between the sub-rings 51, 52.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.