| 摘要 |
<p>A PC unit 1 includes a congestion detecting circuit 4 for detecting a congesting status of a network 3 from a flow of cells in the backward direction and calculating or determining a parameter required for PC based on the congestion status, a rewritable parameter memory 5 for storing the parameter, and a DGCRA circuit 6 for checking a conformance of cells in the forward direction on the basis of the information of the parameter memory 5 and the specified information.</p> |
