ATM switch with rate-limiting congestion control
US6934253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Feb 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5682
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An ATM switch with rate-limiting congestion control has a plurality of input ports, a plurality of output ports operatively associated with one or more data buffers, an output control and a switch fabric for switching data units from any of the input ports to any of the output ports on virtual connections. The ATM switch imposes and enforces transmission rate-limiting policies against the virtual connections when the backlog of data units for delivery to a particular output port reaches a particular level. The ATM switch may be arranged to exempt high priority data units from the imposed rate limitations and has a means to lift the rate limitations when the backlog has been sufficiently reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.