JPH0614024A - Fault alarm system - Google Patents

Abstract

PURPOSE:To smoothly execute the operation management on the occurrence of a fault inexpensively and simply by providing an alarm control section to node device constituting a LAN and distributing fault information detected via a public communication network. CONSTITUTION:When a fault takes place in a bridge device 101 or a trunk line optical cable 108 on an FDDI.LAN 100, a control block in the device 101 detects the fault and outputs a fault signal to an alarm control section 105. The control section 105 makes a call to a destination address and output fault information to a telephone line 112 in a voice signal. Then the telephone line 112 extended from the device 101 is accommodated in a private branch of exchange PBX 113 and concentrated to be connected to a public communication network 114 and an exciting telephone set 116 listens to the fault information in voice. Furthermore, a pocket beeper is used in place of the telephone set. Thus, the operation management on the occurrence of a fault is implemented inexpensively and simply by using an exciting installation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for preventing a failure of an alarm function due to a specific LAN failure in an alarm function for detecting a failure of a high-speed optical LAN, and a public from an existing private PBX. The present invention relates to a method of flexibly deciding an alarm destination by using a communication network without limiting an installation location of an alarm device (telephone).

[0002]

2. Description of the Related Art Conventionally, a dedicated management terminal for a LAN formed of a plurality of node devices is provided, and an alarm for a failure is connected to the management terminal by an alarm device which sounds an alarm at the end of an external alarm controller. A warning is given for a failure, and the failure information also serves as the LAN signal path.

[0003]

In the prior art, a LAN is used.
A dedicated management terminal that manages the LAN is connected to the node device that configures the LAN, and the management terminal detects a failure of the LAN by transmitting user information and diverting the trunk cable that configures the LAN, and externally installing the management terminal. The alarm control device and the alarm device are configured to sound a fault alarm. In this case, no consideration is given to the fact that the alarm function also leads to a failure due to a specific LAN failure such as isolation of a node apparatus due to multiple failures of LAN such as a management terminal and a plurality of node apparatuses.
Depending on the location of the management terminal, the location of the alarm device
Since no consideration is given to the fact that it is limited to the vicinity of the installation of the LAN, there is a problem that the operation management method of the LAN is limited, and trouble management and response methods are difficult.

According to the present invention, a failure of a LAN does not cause a failure of an alarm function, a restriction of a failure monitoring place where an alarm device is installed is eliminated, and this is easily realized by using an existing facility. Especially.

[0005]

[Means for Solving the Problems] In order to achieve the purpose,
The alarm control unit is built in the node device that constitutes the LAN,
The alarm control unit monitors the individual control blocks inside the node device and determines the content of the failure, the file that stores the voice message that matches the failure type, and the destination address (telephone number) that outputs the failure information. ) Is registered, and the NCU function unit has an automatic dialing function for making a call based on the address. Fault information from the node device is stored separately from the main cable that constitutes the LAN.
A telephone line is laid as a transmission medium and transmitted from each of the node devices.

In order to realize flexible operation for a fault, a telephone line, which is a transmission line for fault information, is accommodated in a pre-existing premise PBX and is installed by using a private line or a public communication network. It is possible to listen to fault alarms and fault parts on the telephone, and to use mobile telephones and pagers by using the subscription telephone service. In addition, it can be used with conventional alarm devices on the premises where LAN is installed. It can be used together.

[0007]

The alarm control unit built in the node device that constitutes the LAN detects a failure for each control block inside the node device, determines the failure portion, and outputs a failure message from the voice message file according to the failure type. Search and
The telephone number of the other party is recognized from the address file of the other party of the alarm, and the NCU function unit calls the telephone number of the other party (alarm device) and outputs the fault information as a voice signal. As a result, failure detection can be enabled in each node device and voice message notification can be performed, so that it is possible to prevent the alarm function from becoming a failure due to a specific LAN failure such as a node device isolation state due to multiple LAN failures. , The operation manager can easily and smoothly know the failure and isolate it. Also, failure information is prevented from being damaged by a specific LAN failure by transmitting the failure information by connecting a telephone line from each node device instead of diverting the trunk cable forming the LAN as a transmission medium. Moreover, it can be realized by laying an easy / inexpensive cable.

The telephone line for transmitting the fault information from each node device is concentrated on the premise PBX which may be installed in the premise and transmits the information to the private line and the public communication network. As a result, not only the telephone installed on the premises but also the telephone installed outside the premises can detect the failure, and
It can be applied to mobile phones and pagers by the subscriber telephone service, and can be used in combination with a conventional alarm device installed in a premises where a LAN is installed, which is quite effective for the system administrator in terms of operation management.

[0009]

EXAMPLE An example of the present invention will be described below.

FDDI LAN for realizing the present invention
FIG. 1 shows a schematic configuration of a bridge device constituting the above and a system configuration up to an alarm device (conventional alarm device, telephone, pager). Further, FIG. 2 shows components of the alarm control unit built in the bridge device. FDDI / LAN (10
0), the inside of the bridge device (101) is 100
FDDI LAN with high transfer rate of Mbps
An FDDI control unit (102) that controls data from the (100) side, a branch line control unit (104) that controls data from the branch line LAN (107) side, and an FDDI control unit (10).
2) and the data frame from the branch line control unit (104) /
The alarm control unit (105) comprises a common control unit (103) for relay control of addresses, traffic, etc., and an alarm control unit (105) for identifying a failure in each control block unit.
Is a failure information collection unit (202) for inputting a failure signal from each control block, and a failure content determination unit (20) for judging the input failure signal and determining which control block is the failure.
3) The failure information thus separated is converted into a failure code, which failure code is searched from the failure code file (207) and is stored in the failure log file (208), and is also reported from the failure report destination file (205). Recognizes the address (telephone number) of the voice message, searches the voice message file (206) for the voice signal of the fault information with the fault code, passes the report destination address to the PB function unit (209), and sends it to the alarm device (telephone). It is composed of components that make a call to and output audio data. In addition, FDDI LAN (10
0) is a plurality of bridge devices (101), FDDI / L
A dedicated FDDI / LAN management terminal (109) for managing the operational status of the AN (100), system configuration control, and failure management,
It is composed of an alarm control device (110) and an alarm device (111) for issuing an alarm when a failure occurs.

In the present invention, assuming the system configuration shown in FIG. 1, an alarm system when a failure occurs in the FDDI LAN (100) will be described.

When a failure occurs in the bridge device (101) or the trunk optical cable (108) on the FDDI-LAN (100), each control block inside the bridge device (101) detects the failure and performs alarm control. Division (105)
A fault signal is output to the alarm control unit (105), and after the above processing, the fault information is output as a voice signal after calling the destination address, and a telephone line (aside from the backbone optical cable (108) is used as a transmission medium. 112) and use each bridge device (10
1) The telephone line (112) extending from the
3) It is housed / concentrated and connected to the public communication network (114), and an existing telephone (116) is used to alert the user with an incoming call bell. By using the telephone (1
It can be applied to a pager (119) instead of 16).

As an effect, the failure warning function is
The bridge device (10) due to multiple failures of the management terminal (110) of the LAN (100) and the plurality of bridge devices (101)
It is possible to prevent the failure of the alarm function due to a certain LAN failure such as the isolation of 1), and in terms of equipment, it can be constructed at low cost by using almost existing equipment, and the installation of the alarm device (116) The conditions are not limited, and by using it together with the conventional indoor alarm device (111), the system administrator can quickly respond, and the administrator can design and realize flexible operation management. high.

[0014]

According to the present invention, the following effects can be obtained.

1. Effect as a function.

(1) In order to prevent a failure of a failure alarm function due to a specific LAN failure such as isolation of the bridge apparatus due to multiple failures of a LAN management terminal or a node apparatus constituting the LAN, the bridge apparatus is provided with An alarm control unit is built in to monitor failure alarms for each bridge device.

(2) The cabling by using a telephone line as a transmission medium of an alarm signal, a premise PBX, and almost all existing equipment such as a telephone can be used, so that the construction can be made easily and inexpensively.

2. The effect on the system administrator from a system perspective.

(1) The location of the alarm device is not limited by distributing the alarm and fault information using the public communication network. In addition, the telephone subscription service can be applied to mobile phones and pagers, and flexible operation management can be designed / realized.

These functions are indispensable functions for the system administrator, and by enhancing these functions, it becomes possible to deal with fault alarms not only for the LAN system but for each device in the computer system.

[Brief description of drawings]

FIG. 1 is a diagram showing a control block configuration inside a node device for implementing the present invention and a system configuration up to an alarm device (conventional alarm device, telephone, pager).

FIG. 2 is a diagram showing components of a node device built-in alarm control unit for realizing the present invention.

[Explanation of symbols]

 100 ... FDDI / LAN, 101 ... Bridge device, 102 ... FDDI control unit, 103 ... Common control unit, 104 ... Branch line control unit, 105 ... Alarm control unit, 107 ... Branch line LAN, 108 ... Trunk optical cable, 109 ... FDDI / LAN Management terminal, 110 ... Alarm control device, 111 ... Alarm control device, 112 ... Telephone line, 113 ... Premises PBX, 114 ... Public communication network, 116 ... Telephone, 117 ... Pager, 202 ... Fault information collection unit, 203 ... Fault Content determination unit, 204 ... Fault notification control unit, 205 ... Fault report destination file, 206 ... Voice message file, 207 ... Fault code file, 208 ... Fault log file, 209 ... NCU function unit.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical indication H04L 12/26 H04M 11/00 303 8627-5K 11/04 8627-5K

Claims (2)

[Claims] 1. A node device constituting a LAN has a built-in alarm control unit, the alarm control unit detects a failure for each control block in the node apparatus, and the detected failure information is converted into a voice message to notify an alarm destination. Fault alarm system characterized by outputting voice signal to alarm destination by address and automatic oscillation function. 2. The fault information transmission medium and route detected and output by the alarm controller are connected to a dedicated line or a public communication network by using a two-wire communication line in addition to a cable forming a LAN. Fault alert system characterized by