| 摘要 |
A decision algorithm for discarding frames is disclosed. A method is disclosed including the application of rules which results in the limited use of the Partial Packet Discard (PPD) method and results in the ATM cells which are not assigned to a frame not being discarded. According to the described Early Packet Discard (EPD) system, all the cells in a frame, from the first cell to the last cell, are removed from an ATM communications device upon arrival in a queue. The EPD system results in no residual cells remaining from a damaged frame or from a frame which is to be removed for other reasons. Additionally, each connection has a Maximum Frame Size (MFS), which is measured in cells and depends on the connection. Thus, increased space is available for other ATM cells. |
