| 摘要 |
PURPOSE:To switch a packet of information requiring real time by controlling a route switch device on the basis of route information. CONSTITUTION:Road information RI indicating whether the information in a packet requests real time or not is added to the packet and repeator stations A, B are provided with auxilinary lines (l) bypassing communication control equipments CCEs and route switches DSWs connecting a communication line to any one of the device CCE and the line (l). The device DSW is controlled on the basis of the information RI. A packet including information to which real time is requested bypasses the devices CCEs and a packet including information to which real time is not required is transmitted through the devices CCEs. Consequently, a packet including information requesting real time such as voices is transmitted without delay, so that the deterioration of quarity due to the delay of information can be suppressed. |
