| 摘要 |
<p>An ATM routing switch (21) has a plurality of output ports for handling digital signal cells on a first type requiring integrity of cell transmission and a second type accepting some loss of cells in transmission, the output ports having control circuitry (40) to provide a plurality of queues of cells at each output port, each queue comprising only cells of a single type while each port (30) outputs a mixture of cells of both types on a common output path (31) flow control indicators on incoming cells being used to inhibit output of cells along any path (31) to a destination for which a flow control indicator has indicated congestion.</p> |
