| 摘要 |
The present invention concernes a method of controlling errors in the transmission of packets transmitted over at least one transmission link between a transmitter and a receiver, the said transmitter receiving from an input multiplex packets belonging to a plurality of virtual circuits and transmitting them in the form of sequences of packets over a or the said transmission line, the said receiver, on reception of a packet, verifying whether it is in the order of the sequence and if so, delivering it to an output multiplex, and if not, sending to the said transmitter a negative acknowledgement of the packet or packets which have not been received so that the latter re-transmits them. According the invention, said method is characterised in that, between the moment when the receiver has found that a packet has not been received and the moment when either this packet has been received after re-transmission or this packet has not been received after a predetermined time, the received packets belonging to the same virtual circuit as the said packet are not delivered and are kept, whilst the received packets belonging to virtual circuits different from the said virtual circuit are processed independently, the kept packets being delivered to the output multiplex only either when the said packet has been received after re-transmission or after the expiry of the said predetermined time. <IMAGE> |
