JPH0621950A - Fault judging system - Google Patents

Abstract

PURPOSE:To make high-reliability fault judgement possible by interposing the communication control equipment of the other third person when an opposite side equipment has the factor of a fault and judging the communication control equipment of the fault from the result by a central controller. CONSTITUTION:A central controller 1 in a data exchange receives fault report information sent from a communication control equipment 3 which has detected the fault by data transfer, containing the fault factor showing the fault is caused by the present equipment or the opposite side equipment, opposite side communication control equipment 4 and transmission line. The central controller 1 requests data transfer with the communication control equipment 3 to a communication control equipment 5 different from the communication control equipment 4 in the case of the opposite side equipment fault, receives the result of data transfer with the communication control equipment 4 from the communication control equipment 5, and judges the abnormality of the communication control equipment 3 when the result shows any abnormality. When it is normal, fault judge counters corresponding to the communication control equipments 3 and 4 in a fault judge counter 100 of the central controller are respectively added and when this count value exceeds a prescribed value, the fault of the relevant communication control equipment is judged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data exchange,
In particular, it relates to a failure determination method based on a failure notification from the communication control device.

[0002]

2. Description of the Related Art Conventionally, in the case of a data transfer failure, a communication control apparatus reports a failure cause and a failure apparatus to a central control apparatus, and the central control apparatus judges the notified communication apparatus as a failure. It was a failure judgment control method.

[0003]

In the above-mentioned conventional failure determination method, the central controller determines the failure device from the failure factor transmitted from the communication control device in which the failure is detected. There is a risk that the faulty device cannot make a decision and makes an incorrect fault decision.

An object of the present invention is to provide a highly reliable fault judgment system.

[0005]

According to the failure determination method of the present invention, a first communication control in which a failure is detected by data transfer is performed in a data exchange for connecting a plurality of communication control apparatuses to each other through a transmission line to transfer data. The fault notification information including the fault factor indicating whether the fault is the self-device fault or the partner device fault, the second communication control device that is the data transfer partner, and the transmission path used is the data transmitted via the data transmission path. The central control unit of the exchange receives the data, requests the third communication control unit different from the second communication control unit to transfer data with the second communication control unit at the time of failure of the partner device, and transmits the third communication. The data transfer result with the second communication control device is received from the control device, and if the result is abnormal, it is determined that the second communication control device is abnormal. If the data transfer result is normal, the communication control device is supported. The center Of the failure determination counters included in the control device, the failure determination counters corresponding to the first and second communication control devices are respectively added, and when the counter count value exceeds a predetermined value, the failure of the communication control device is detected. It has a means to judge.

[0006]

The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an apparatus showing an embodiment of the present invention. A central control unit 1 accommodates a plurality of communication control units 3 to n via a data transmission line 6. FIG. 2 is a failure determination counter area diagram showing an embodiment of the present invention.

When the communication control device 3 performs data transfer with the communication control device 4 using the data transmission line 2 and detects a failure, the communication control device 4 of the abnormal data transfer partner and whether it is a self failure or a partner failure. The failure control factor is notified to the central control unit 1. The failure-notified central control device 1 determines that the communication control device 3 is a failure when there is a failure due to a failure factor, and in the case of a partner failure, transfers data to another communication control device 5 with the communication control device 4. Ask.

The communication controller 5 transfers data with the communication controller 4 and notifies the central controller 1 of the result.
The central controller 1 determines a faulty device based on the data transfer result from the communication controller 5. If the result of data transfer with the communication control device 4 is abnormal, the communication control device 4 determines that there is a failure. If the result of data transfer with the communication control device 4 is normal, the failure determination counter 101 for the communication control device 3 and the failure determination counter 102 for the communication control device 4 are added.

Next, when the communication control device 5 uses the data transmission line 2 to transfer data to the communication control device 3 and detects a failure, the communication control device 5 and the communication control device 3 of the data transfer partner that has become abnormal will have a self-error or a failure at the other end. The failure cause is notified to the central controller 1. When the failure is notified, the central control device 1 determines that the communication control device 5 has a failure when the failure is caused by the failure. Further, when there is a partner failure, the other communication control device 6 is requested to transfer data with the communication control device 3. The communication control device 6 transfers data with the communication control device 3 and notifies the central control device 1 of the result. The central control device 1 determines the faulty device based on the data transfer result from the communication control device 6. If the result of data transfer with the communication control device 3 is abnormal, the communication control device 3 determines that there is a failure. If the result of data transfer with the communication control device 3 is normal, the communication control device 3 failure determination counter 101 and the communication control device 4 failure determination counter 103
Is added. When the failure determination counter exceeds a certain value, the corresponding communication control device is determined as a failure.

[0011]

As described above, according to the present invention, when the communication control device detects a failure, the communication control device of the data transfer partner and the data transfer path used for the data transfer are notified together with the cause of the failure. When the failure factor is the partner device, the central controller requests the other third party's communication control device to transfer the data of the detected communication control device, and determines the failed communication control device from the result. This has the effect of making a reliable fault determination.

[Brief description of drawings]

FIG. 1 is a device configuration diagram showing an embodiment of the present invention.

FIG. 2 is a communication control device failure determination counter area diagram included in the central control device of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central control device 2 Data transmission path 3, 4, 5, 6 ... n Communication control device 101 Failure determination counter of communication control device 102 Failure determination counter of communication control device 103 Failure determination counter of communication control device 104 Communication control Failure judgment counter of device 6 Failure judgment counter of communication control device n

Claims (1)

[Claims] 1. In a data exchange for connecting a plurality of communication control devices to each other through a transmission line to transfer data, whether the first device or the other device has a failure transmitted by the first communication controller which has detected a failure due to the data transfer. The failure notification information including the failure cause, the second communication control device that is the data transfer partner, and the used transmission path is received by the central control device of the data exchange through the data transmission path, and the partner device failure occurs. At this time, the third communication control device different from the second communication control device is requested to transfer data with the second communication control device, and the third communication control device communicates with the second communication control device. If the data transfer result is received and is abnormal, it is determined that the second communication control device is abnormal, and if the data transfer result is normal, one of the failure determination counters provided in the central control device corresponding to the communication control device. A failure determination method characterized in that the failure determination counters corresponding to the first and second communication control devices are respectively added, and a failure of the communication control device is determined when the count value of the counter exceeds a predetermined value. .