| 摘要 |
<p>PURPOSE:To improve the circuit efficiency by storing a header part for analysis after delaying a packet for a fixed period of time by a buffer, selecting an outgoing circuit out of the idle circuits for allocation and transmissing immediately the packet under reception to a terminating station. CONSTITUTION:The packet input received from an incoming circuit 1 undergoes the protocol processing 2 and is delayed by a buffer part 3 for a fixed short time. At the same time, a header analyzing part 4 stores the header part for analysis. A transmitting destination is detected and an outgoing circuit request signal 5 is transmitted to a conflict circuit 11. The circuit 11 chooses an idle circuit to transmit an outgoing circuit allocating signal 6 to the part 4 of a transmission requester. At the same time, the circuit 11 controls 14 the open/ close of a switch 15 by a switch control signal 12 to close a switch set within the switch 15. Thus the part 4 transmits immediately the packet under reception to a terminating station. As a result, the traffic concentration never occurs at a specific circuit. Then the delay time is shortened and the circuit availability is improved.</p> |
