DROP FROM FRONT OF BUFFER POLICY IN FEEDBACK NETWORKS

摘要

A method for transmitting packets or cells(or both) in a communications network(10)is disclosed. The packets or cells are transmittedalong a forward communications path in a network from a source node (hl) via one or more intermediary nodes (rl,xl, r5 and r2) toa destination node (h4). At the intermediary nodes (r1, xl, r5 or r2), the packets or cells are received in a buffer (38 or 42-1 to 42-4).The packets or cells are transmitted along the forward communications path according to a communications schedule. In the presence ofcongestion at one of the intermediary nodes (xl), an indication of the congestion (302-342) is provided to the destination nodes (h4) of thefirst packets to be transmitted according to the schedule. An indication of the congestion of the first packets or cells is provided by thedestination nodes (h4) of the first packets or cells to the source nodes (hl) of the first packets or cells via a feedback commiunication path.