| 摘要 |
This invention relates to a method for distinguishing between transmission losses and congestion losses in a packet network, the method comprising receiving at a source node a sequence of tag status values associated with packets which have been routed via one or more other nodes in a network, wherein at least one of said other nodes is arranged in operation to indicate its queue length by the spacing between packets associated with a first tag status value; detecting a loss of packets; determining from said sequence of tag status values a first spacing between a pair of packets having said first tag status value, which packets were received before said loss, and optionally a second spacing between a pairs of packets having said first tag status value, which packets were received after said loss; determining from said spacing or spacings the length of the queue before the loss and optionally the length of the queue after the loss ; and if the length of each queue is less than a defined number of packets categorising the loss as a transmission loss. |
