Apparatus and method for managing rate band
US6504824B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5682
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A re-calculator circuit obtains the MCR value of each connection stored in an MCR storage unit, and performs a calculation in such a way as to impartially distribute the available rate band of a FIFO among active connections. The re-calculator circuit stores a rate band attached to the MCR value of each active connection by this calculation, in a virtual MCR storing unit as a virtual MCR value. This rate measurement unit refers to the virtual MCR value stored in the virtual MCR storage unit, and judges whether or not the input cell rate of each active connection exceeds the virtual MCR value. This result is inputted to an input control unit. The input control unit examines the input cell rate information and congestion monitoring information inputted from a queue length monitor unit for monitoring the volume of cells buffered in the FIFO, and determines whether to discard the incoming cell or to input the cell to the FIFO.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.