Method and circuit arrangement for reducing the loss of message packets that are transmitted via a packet switching equipment
US5200950A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1991 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Apr 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/555
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In order to reduce the loss of message packets that are transmitted in the course of virtual connections in an asynchronous transfer mode and which comprise a packet header identifying the respective virtual connection, the message packets being respectively augmented by a continuous auxiliary identifier and, after multiplication, being separately transmitted via redundant switching matrices of a packet switching equipment, it is provided that, with reference to the auxiliary identifier, only that message packet transmitted without fault as a first of the multiplied message packets and having an auxiliary identifier that is the next one following the most recently-transmitted message packet is forwarded. In addition, that switching matrix by way of which the transmission of message packets respectively occurs most slowly is identified and message packets that are transmitted via the respective slowest switching matrix as the first of the multiplied message packets are forwarded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.