| 摘要 |
As stated above, since the control, according to different types of service traffics, is executed by detecting the congestion state by output buffers, whose numbers is fixed, of the network node, the present invention can remove a load of hardware which may be caused by the variable number of virtual connections in case of executing the congestion by the virtual connections. Therefore, the present invention has the effect of simplification of circuitry implement. Also, the present invention can exclude out of the network node the possibility of the congestion which can be generated by the transmission delay, because the congestion state in the network node is determined concerning the transmission delay.
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