Method and device for controlling data flow in a computer data network
US6246690A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0478
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An Ethernet flow control system, preferably for a Ethernet switch, having flow controlled transmitting ports in compliance with IEEE Standard 802.3x. The flow control system includes a shared resource, a plurality of buffers receiving data frames from the shared resource, and a plurality of transmitting ports. Each transmitting port being associated with one of the plurality of buffers and being flow controllable between an enabled state and a blocked state. The transmitting port removing and transmitting data frames from the associated buffer when in the enabled state. Each transmitting port including a timer for measuring the time that an associated buffer has a data frame and the corresponding transmitting port is in the blocked state. Each port also includes control logic for removing data frames from the associated buffer when the measured time is greater than a predetermined time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.