Transmission system with recording of untransmitted packets
US5313455A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1992 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Oct 14, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5636
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packets transmitted in an automatic packet transmission system each have an information part and a header part. The heater contains virtual channel information (vci), identifying the virtual transmission channel and/or the group of virtual transmission channels via which the packet is being transmitted. The transmitted system at a junction point comprises 94 access control system including a counter-and-threshold access control device (3) controlling a switch (2) for granting or refusing packets access to the downstream part of the transmission system, depending on the arrival rate of incoming of packets of the respective packet types identified by their virtual channel information. An error reporting device (4) records per vci the arrival rate of packets which are refused access downstream when a first threshold arrival rate is exceeded. Arrival rates and arrival rate thresholds are measured by a "leaky bucket" method for each packet type. When the arrival rate of packets which are refused downstream access exceeds a second threshold value the error reporting device prevents excessive processing of access refusals in overloaded virtual channels and sends an error message for attra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.