JPH0581202A - Instantaneous fault detection system for communication network equipment - Google Patents

Abstract

PURPOSE:To instantaneously detect a fault on a communication network equipment especially in a non-communication state in an on-line system. CONSTITUTION:The feature part of this invention executes instantaneous fault detection and processing corresponding to the fault based upon the transmission of a diagnostic message to a relating terminal and that of an operation status informing message, i.e., a positive acknowledge message (+RSP) or a negative acknowledge message (-RSP), from the terminal at a constant time interval through interval timer setting (2.1), diagnostic message edition/transmission (2.4), fault status information (2.10), and message transmission stop/fault message storage (2.11). Thereby the fault maintenance work of the communication network equipment and the saving (contact with a user through a substitutive means or the like) of a message generated from a center can be rapidly and exactly executed and the operation rate and reliability of the whole on-line system can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for instantly detecting a fault in a communication network facility of an online system, and more particularly to a method for instantly detecting a fault by transmitting a diagnostic message to a relevant terminal at regular time intervals.

[0002]

2. Description of the Related Art Regarding a failure of a communication network facility of a conventional online system, even if an actual failure occurs, the failure is not recognized as a system if the center and the terminal are in a non-communication state.

[0003]

In the conventional fault detection of the communication network equipment of the online system, the fault detection is delayed until an electronic message is generated between the center and the terminal after the actual fault occurs. There is a problem that equipment maintenance work (failure point search, repair, recovery test) and fault message rescue work (contact with information users, etc.) are overlapped and congested, which causes double faults due to error handling. It was

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an immediate failure detection system for communication network equipment capable of immediately detecting a failure in the communication network and quickly performing a failure recovery operation. I am trying.

[0005]

The instant failure detection method for communication network equipment according to the present invention has a function of generating a time start command message at an arbitrary time interval on the center side of an online system and the input of the time start command message. And a function of transmitting a diagnostic message to a related terminal, and a function of receiving a diagnostic message transmitted from the center side on the terminal side and discriminating its own state and responding to the center with a positive report message or a negative report message. , A function of inputting a positive report message or a negative report message from the terminal side on the center side to monitor the operating state of the corresponding terminal and the corresponding communication path, and a corresponding terminal when an abnormality is detected by the monitoring function. And a function of notifying the center maintenance personnel and the operator of the failure status of the relevant communication path (related communication network equipment), and the center side of the subsequent failure terminal and failure communication path Stop statement transmission and a function for storing message to the magnetic disk device or the like until the failure recovery.

[0006]

According to the above configuration, the diagnostic message is transmitted from the center at the set interval, and the terminal receiving the message determines the fault condition and responds to the center with a positive report message or a negative report message. If an abnormality is detected by monitoring the positive and negative report messages, the center maintenance personnel and operators are notified of the abnormality and the message transmission is stopped and the message is stored in the magnetic disk device. Immediate detection of faults and response processing are possible.

[0007]

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

FIG. 1 is a schematic diagram of functional configurations of a center and terminals in an online system according to an embodiment of the present invention.

In the figure, reference numeral 1 denotes a central processing unit (CPU) of a center, which generates a time start command message at a time interval set by an interval timer device 6 which is in charge of the following processing, and a communication network fault diagnosis unit. In step 7, each input message is judged and diagnostic message is sent to the terminal side.
And sending via the communication network equipment 3 such as the packet switch 8 and the terminal side line 4 to instruct a response, notification processing at the time of failure occurrence, temporary holding of communication of a message and storage processing on a magnetic disk, etc. Do. Again 5
Is a central processing unit (CPU) of the terminal, and when it receives a diagnostic message from the center, it grasps and responds to the failure status,
The communication network failure diagnosis support unit 9 performs a handling process.

Next, the processing operation of the above configuration will be described.

FIG. 2 is an operation explanatory view for explaining a failure diagnosis operation and a failure processing operation of the communication network equipment in the center CPU according to the embodiment of the present invention.

The sequential operation method will be described in accordance with the processing procedure shown in FIG. First, in 2.1, the timer of the interval timer device 6 is set to an arbitrary monitoring time of several minutes, and thereafter, it is instructed to generate a time activation command message to the processing queue at this time interval. Nao, the terminal CP is input to the processing queue in parallel with the timer time input.
It is a response report message from U5.

In 2.2, the time activation command message and the response report message (A) from the terminal are received and processed from the processing queue, and the time activation command message is processed first.

In 2.3, the time start command message is judged, the command message is confirmed, and in 2.4, the diagnostic message is created and transmitted to the terminal to be diagnosed, and the terminal CPU 5 sends an affirmative response message (hereinafter + RSP. (Abbreviated) or negative response message (hereinafter abbreviated as -RSP) is instructed to respond to the central CPU 1 and notify the processing queue.

In step 2.5, it is judged whether all the diagnostic messages have been transmitted to the terminal to be diagnosed. If not finished,
At 2.6, the next terminal to be diagnosed is extracted and the transmission of the diagnostic message is prepared.

In 2.7, the process returns to the above 2.3, and the + RSP from the terminal CPU 5 is confirmed and confirmed.

If + RSP is confirmed in 2.8, the communication path to this terminal (related communication network equipment) 2, 3,
Since 4, 5 and the like are operating normally, communication (transmission / reception) is continued.

At 2.9, -RSP from the terminal is judged and confirmed.

In 2.10, the communication paths 2, 3 to this terminal are
Since an abnormality has occurred in 4, 5 or the like, the center operator or center maintenance staff is notified by displaying the situation on the center call or the like.

In 2.11, the transmission of a message to this terminal is stopped, and the message generated thereafter is accumulated in the magnetic disk device until the failure is recovered. Etc. are possible.

FIG. 3 is an operation explanatory view for explaining a failure diagnosis coping operation in each terminal CPU of the present invention.

The processing operation will be sequentially described in accordance with the operation procedure of FIG.

First, in 3.1, a message from the center is received.

In step 3.2, the received diagnostic message is judged and confirmed.

In 3.3, the state of the terminal itself, the state of the communication path 3 with the center, etc. are judged and confirmed.

In 3.4, it is determined that the state of the terminal and the state of the communication path are normal, and + RSP is transmitted to the center.

In Section 3.5, if an abnormality is discriminated in the state of the terminal or the state of the communication path 3 with the center, the abnormality has occurred.

At 3.6, the failure status of the terminal, the communication path 3, etc. is edited into -RSP and transmitted to the center.

Reference numeral 3.7 is processing of a normal terminal other than the present embodiment.

[0030]

As described above, according to the present invention, the diagnostic message is transmitted to the related terminal at a constant time interval and the operating state is monitored. Therefore, the communication network failure is immediately detected to perform the failure recovery work (equipment maintenance). It is possible to quickly and accurately perform (relief of electronic message), shorten the time for disconnecting the communication path, and improve the reliability of the entire online system.

[Brief description of drawings]

FIG. 1 is a functional configuration diagram of a center and terminals in an online system that is an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram illustrating a failure diagnosis operation and a failure processing operation of the communication network equipment in the center CPU according to the embodiment of the present invention.

FIG. 3 is an operation explanatory diagram illustrating a failure diagnosis handling operation in the CPU of each terminal in the embodiment of the present invention.

[Explanation of symbols]

 1 center CPU 2 center side line 3 communication network equipment 4 terminal side line 5 terminal CPU 6 interval timer device 7 communication network failure diagnosis unit 8 packet switch 9 communication network failure diagnosis support unit + RSP positive report message-RSP negative report message

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Claims (1)

[Claims] 1. A function of generating a time activation command message at an arbitrary time interval on the center side of an online system, a function of inputting the time activation command message and transmitting a diagnostic message to a related terminal, and the terminal side described above. A function of receiving a diagnostic message sent from the center side to determine its own state and responding a positive report message or a negative report message to the center side, and a positive report message responded from the terminal side at the center side or A function to monitor whether the operation status of the corresponding terminal and communication channel is normal or abnormal by inputting a negative report message, and a failure status of the corresponding terminal and communication path when an abnormality is detected by the monitoring function. Center maintenance personnel A function to notify the center operator and to the magnetic disk device etc. until the fault is recovered by stopping the transmission of the message from the center side to the faulty terminal and the fault communication path thereafter. An immediate failure detection method for communication network equipment, which has a function of accumulating the telegram.