| 摘要 |
<p>A UPC process unit judges whether an arrived cell conforms to a declared parameter. When receiving a cell which is transmitted by a GFR service, a frame process unit modifies the judgment result of the UPC process unit taking an AAL5 frame into consideration. A cell process unit discards the arrived cell based on the judgment result of the UPC process unit or the modified result. <IMAGE></p> |
