JPH0290753A - Input restriction control system - Google Patents

Abstract

PURPOSE:To restrict and cancel an input without a delay according to a traffic condition by comparing a reference value set beforehand with statistic data from a statistic processing means, and determining and notifying the time point of the start and cancellation of input restriction. CONSTITUTION:In a processing delay supervising device 3, by receiving output processing completion time information and input processing start time information read from a memory 5 by means of a restriction deciding part 6, a statistic processing part 4 calculates a differential time, executes the statistic processing with the former data, writes the statistic data of a processing result through the restriction deciding part 6 to the memory 5, and updates the statistic data. The restriction deciding part 6 compares the statistic data read from the memory at every constant time with the reference value, and when the statistic data are larger than the reference value, an input restriction starting signal is sent to a controller 2, an input restriction is started, when the statistic data are smaller than the reference value, an input restriction canceling signal is sent, and the input restriction is cancelled. Thus, the input restriction and cancellation can be executed without the delay according to the traffic.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an input regulation method, and particularly to an input regulation control method in a packet switch.

[Conventional technology]

Conventionally, this type of input restriction control method measures throughput and checks the status of internal resources using the software of the control device that performs packet exchange control, and controls the start and release of input restriction based on the results. ing.

[Problem to be solved by the invention]

In the conventional input restriction control method described above, the software of the control device that performs packet exchange control measures throughput and checks the status of internal resources, and during traffic congestion, which requires a heavy exchange control processing load. There is a drawback that input regulation control may be delayed.

[Means to solve the problem]

The input regulation control method of the present invention includes a processing delay monitoring device for monitoring processing delays of a control device in a packet exchange, and this processing delay monitoring device receives input processing start and output processing completion notifications from the control device. The statistical processing means for statistically processing the processing time compares the statistical data from the statistical processing means with a preset reference value to start input regulation.

The present invention is characterized by comprising a restriction determining means for determining the point of release and notifying the control device.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the input regulation control method of the present invention.

The processing delay monitoring device 3 includes a control device 2 that performs packet switching control between the lines A1 and 8 accommodated in the packet switch 1, and a processing delay monitoring device 3 connected to the control device 2.
The statistical processing unit 4 performs statistical processing on the processing time based on notifications from the control device 2 of the start of input processing and the end of output processing, the memory 5 that stores preset reference values, and the statistical processing unit 4.
The control determining section 6 compares the statistical data from the memory 5 with the reference value from the memory 5 and determines when to start and release the input control.

Next, the operation of this embodiment will be explained.

First, when the control device 2 detects input from line A, it notifies the processing delay monitoring device 3 of the start of processing before starting input processing, and then executes input processing and internal processing to output processing to line B. Upon completion, the processing delay monitoring device 3 is notified of the completion of the output processing.

The control device 2 performs similar switching control processing for other inputs to the packet switching device 1.

On the other hand, in the processing delay monitoring device 3, when receiving the input processing start notification from the control device 2, the regulation determination unit 6 reads the time from a clock (not shown), stores the input processing start time information in the memory 5, and outputs the input processing start time information. When receiving the processing end notification, output processing end time information is similarly stored. At this time, the statistical processing section 4
The regulation determination unit 6 receives the output processing end time information and the input processing start time information read from the memory 5, calculates the difference time between them, performs statistical processing on the previous time data, and generates statistical data as a result of the processing. is written into the memory 5 via the regulation determining unit 6 to update the statistical data.This updating of the statistical data is performed every time the control device 2 executes the exchange control process.

The regulation determination unit 4 compares the statistical data read from the memory 5 with the reference value at regular intervals (for example, every 10 minutes), and sends an input regulation start signal to the control device 2 when the statistical data reaches the reference value. This signal is sent to start input regulation, and when the statistical data reaches the reference value, an input regulation release signal is sent to cancel input regulation.

〔Effect of the invention〕

As explained above, according to the present invention, the processing delay monitoring device operates regardless of the control device, so the control device does not need to perform traffic statistical processing for input regulation control, and the load on the control device is reduced. Therefore, it is possible to perform input restriction and release without delay depending on the traffic situation.

... Regulation Judgment Department.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the input regulation control method of the present invention.

Claims (1)

[Claims] A processing delay monitoring device for monitoring processing delays of a control device is provided in the packet switching equipment, and the processing delay monitoring device receives input processing start and output processing end notifications from the control device, and statistical processing means for statistically processing the processing time; The present invention is characterized by comprising a restriction determining means that compares a preset reference value with the statistical data from the statistical processing means, determines the point at which input restriction is to be started or canceled, and notifies the control device of the determination. Input regulation control method.