BUFFER MANAGING METHOD AND ATM SWITCHBOARD

摘要

PROBLEM TO BE SOLVED: To provide a buffer managing method and an ATM(asynchronous transfer mode) switchboard which enable minimization of cells to be discarded and efficient cell transfer. SOLUTION: When the cell transfer is performed by using a common buffer, the number of stored cells of queues provided for every one or more service classes about the cell is judged. And the number of stored cells is compared with a threshold preset for the queue, the threshold is dynamically changed according to a comparison result and the cell is stored in the common buffer based on the threshold after being changed.