APPARATUS FOR REMOVING LOST PACKET DATA IN ORDER TO PREVENT TRAFFIC CONGESTION IN ASYNCHRONOUS TRANSFER MODE SYSTEM

摘要

PURPOSE: The apparatus for removing lost packet data in order to prevent traffic congestion in an asynchronous transfer mode(ATM) system is provided to enable a stable ATM operation, and to guarantee the service with good quality for various types of service traffic, by preventing the traffic congestion in the system using minimum hardware logic. CONSTITUTION: A received cell processor(B2) generates a connection memory address(S2) related to a received cell(S1), a packet start signal and a packet end signal(S3). A connection table managing part(B3) manages an unnecessary cell designating signal(S5) and a negotiation parameter(S4). A negotiation violation checking part(B4) detects the cell that excesses a negotiated traffic rate, and sets the signal(S5) according to the result of the detection. An unnecessary cell processor(B5) combines the unnecessary cell designating signal(S5) received from the part(B3) with a negotiation violation signal(S6) applied from the part(B4), and thereby removes the unnecessary cell.