DEVICE FOR MEASURING AND CONTROLLING CELL FLOW FOR EACH CONNECTION

摘要

PROBLEM TO BE SOLVED: To provide a low-cost circuit by operating a negotiation violation detection circuit for virtual connection to pertinent connection for which the cell of a specified connection is inputted. SOLUTION: A cell counting means 3 receives reception, abandonment and tags in input, counts reception cells and violation cells and stores them in a first storage means 1 for storing a traffic parameter, a variable and the value of cell counting for each connection. A negotiation violation detection means 4 detects the cells exceeding a negotiated traffic rate and an input cell filtering means 5 provides a cell length error detection function and a cell slot mode. Then, an output cell filtering means 7 receives a negotiation violation result in the input, is connected to a CPU matching means 2 while receiving cell data from a second storage means 6 for storing cell data to the input, controls abandonment and tag operations as a measure for a negotiation violation and outputs the reception, the abandonment and the tag to the cell counting means 3.