Fibre channel elastic FIFO delay controller and loop delay method having a FIFO threshold transmission word adjuster for controlling data transmission rate
US7921242B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2205/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a circuit coupled to a port of a network having a loop architecture, a read/write pointer controller provides a read and a write pointer to track transmission words stored in a FIFO array. The read/write pointer controller also provides a FIFO level indicator to track the total number of transmission words in the FIFO array. A dynamic threshold controller tracks transmission word insertions and deletions in the FIFO array for a predetermined period of time and provides a threshold level adjustment signal based on the tracked transmission word insertions and deletions and a transmission word threshold level. A FIFO level adjuster provides transmission word insert and delete commands and adjusts the threshold level of the FIFO array in response to the threshold level adjustment signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.