Communication apparatus, interface card, and failure handling method
US8769157B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2010 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Nov 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication apparatus of the embodiment is provided with a first IF card that performs a relay process of a data frame in a first direction of a ring network, a second IF card that performs a relay process of a data frame in a second direction of the ring network, a communication-status determination unit that monitors the communication status from the first IF card to the second IF card, a block control unit that sets a new block point to either the first IF card or the second IF card when the communication status is abnormal, and a ring protocol processor that notifies other communication apparatuses that constitute the ring network of information for notifying the switching of a block point in the ring network, which indicates that the new block point has been set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.