| 摘要 |
<p>PROBLEM TO BE SOLVED: To cancel congested state of traffic by permitting a wideband terminal equipment (B-TE) to execute transmission by means of exceeding bond width mediated by call/connection acceptance control and canceling a state, in which the loss of a cell in a ring easily occurs. SOLUTION: When B-TE*311 receives the cell from BTE*303 positioned on the upper stage of the ring, the cell is dropped from a CRAD part 319 to an AAL reception part 318, if the transmission destination of the cell is for oneself. When the transmission destination is not for oneself, the cell is relayed to the ring in the direction of downstream via the CRAD part 319. Then, the functions of drop and relay are executed simultaneously. The cell in respective B-TE* is dropped and relayed, based on information of a virtual channel identifier and virtual route identifier in the header of the ATM cell. Four kinds of queues are used for respective B-TE*311 which are the multi-access wide band terminals.</p> |
