Data exchange, data terminal accommodated in the same, data communication system and data communication method
US5912877A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1995 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Nov 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13353
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a data exchange and a data exchanging method each suitable for a communication system which tends to be congested due to high-speed communication such as a frame relay network. The data exchange that accommodates plural data terminals via terminal trunks includes a congestion status detecting unit for detecting the congestion status in a standard transit trunk, and the transit trunk control unit including a first alternate control unit that controls to transfer data to be transferred by a roundabout route using a backup transit trunk, based on detection information from the congestion status detecting unit. The purpose of the present invention is to suppress the occurrence of congestion or the frame disposal of a frame at a congestion occurrence time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.