| 摘要 |
Message cells that are allocated to virtual connections having differen t priorities are transmitted in common over at least one transmission line (L1 , L2) of an ATM system working according to an asynchronous transfer mode . While being transmitted via the respective transmission lines, these messa ge cells pass through a buffer memory (PS) individually allocated thereto. Give n a buffer memory (PS) exhibiting a specific filling degree, one or more message cells of message cells of a selected virtual connection of low priority stored at the moment in the buffer memory (PS) are discarded with the arrival of a message cell on the respective transmission line (L1) belonging to a virtual connection of relatively high priority, being discard ed dependent on the plurality of message cells stored far this virtual connecti on having low priority.
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