Monitoring device for CPS packet multiplexing and cell assembly control method taking account of assembly time

摘要

A monitoring device for controlling connection-by-connection cell assembly times by monitoring the multiplexing of CPS packets and a cell assembly control method are disclosed. A cell assembler includes a multiplexing control circuit made up of a reference timer, a monitor, and a control table storing connection-by-connection control information. The monitor determines, based on a reference time fed from the reference timer, a time when a CPS packet is input via a packet receipt section for the first time. The monitor calculates a time for ending multiplexing on the basis of the control information read out of the control table and the CPS packet input time, and compares the time for ending multiplexing and the reference time connection by connection. When the time for ending multiplexing assigned to any connection expires, the monitor causes a packet multiplexing circuit to execute a preselected operation. The packet multiplexing circuit completes an ATM (Asynchronous Transfer Mode) cell for the above connection and sends it via a packet transmission circuit.