Device for controlling data flow in ethernet and method thereof
US6680911B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/135
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for controlling the data flow of the Ethernet hub in a half-duplex mode, wherein the hub includes a switch to control data packets flowing through a plurality of communication ports. The system includes a destination address (DA) detector for detecting the DA of the data packet received through the input-port of the communication port to determine whether the data packet is to be treated by the switch, a logic gate for generating a selection signal based on the determination of the DA detector and an overload signal supplied by the switch when the hub is overloaded with the data packets, a jamming signal generator for generating a jamming signal in response to the selection signal, a MAC for converting the data packet into a bit stream as set forth in a carrier-sense multiple access with a collision detection (CSMA/CD) protocol, and a selector for selectively transmitting the jamming signal or the packet from the MAC in response to the selection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.