| 摘要 |
<p>PURPOSE:To simplify procedures and to avoid retransmission of unnecessary cells with respect to retransmission control of AAL(ATM adaptation layer) in ATM(asynchronous transfer mode). CONSTITUTION:If it is found that a cell cannot be normally received, a reception-side AAL header trailer processing part 106 transmits a management cell, which indicates the stop of transmission of following cells, to the transmission side and reports the occurrence of cell reception error to a higher-order communication processing layer. Meanwhile, the transmission-side AAL receives the request of the stop of cell transmission to stop the cell transmission and abandons user information in a transmission buffer 101. Thus, a network is efficiently used.</p> |
