JPH08297612A - Isdn line fault display device - Google Patents

Abstract

PURPOSE: To precisely display fault contents in a general expression by inputting information on respective layers, analyzing the states of respective layers and selecting state numbers corresponding to those states. CONSTITUTION: When the generation of any fault from respective signal processing parts 1-3 of layers 1-3, or the report of recovery or the report of a change in the state of a call from the signal processing part 3 of the layer 3 is received, fault analytic processing is started. When the processing is started, a fault analytic processing part 4 acquires the state number. Then, one element in a state transition figure is decided from the acquired state number and the contents of the report showing the generation of the fault, its recovery or the change in the state of the call. A pair of the state number to be transited at the time of transiting the state and the analyzed result to be reported to a fault display processing part 5 at the time of performing fault display is set to one element. Corresponding to one element, the analyzed result is acquired and reported to the fault display processing part 5. The fault display processing part 5 displays a display phrase corresponding to the reported reuslt on a display part 6.

Description

Detailed Description of the Invention

[0001]

The present invention relates to ISDN (Integrated Sewing).
rvices Digital Network)
To use. In particular, it relates to an ISDN line failure display technology.

[0002]

2. Description of the Related Art A conventionally known ISDN line fault display device displays a fault of each layer detected by a signal processing section of each layer. At this time, when the user of the terminal on the other end disconnects the call during the communication on layer 3, the reason for disconnection is displayed, and the user of the terminal can know the reason for disconnection.

When a failure occurs in the layer 2, the presence or absence of the failure in the layer 2 or a word or phrase in agreement with the failure is displayed regardless of the state of the terminal. Similarly, when a failure occurs in layer 1, the presence or absence of a failure in layer 1 is displayed regardless of the states of other layers (Japanese Patent Laid-Open No. 62-27663).
No. 8, JP-A-3-289740).

[0004]

As described above, in the conventional ISDN line fault display device, when the user of the terminal disconnects the call due to a layer 1 or 2 fault during communication, the reason for disconnection is given. I couldn't know.

That is, the conventional ISDN line fault display device merely displays the fault detected by each layer signal processing unit as the fault occurrence or fault state, and the fault occurs during communication. , If the communication path is cut off, even if it is displayed that there is a failure, it is not clear whether or not the call that was in communication was cut off, and the reason for disconnection is determined. Requires specialized knowledge and experience, and it is difficult for a general terminal user to judge whether the displayed content can be communicated again.

The present invention has been made against such a background, and an object of the present invention is to provide an ISDN line failure display device capable of displaying details of a failure in a general expression. It is an object of the present invention to provide an ISDN line fault display device capable of displaying an error message by setting an arbitrary message. An object of the present invention is to provide an ISDN line failure display device capable of clearly displaying whether or not communication is possible. SUMMARY OF THE INVENTION It is an object of the present invention to provide an ISDN line fault display device capable of recognizing a fault content or a fault recovery state without requiring specialized knowledge.

[0007]

According to the present invention, a signal processing unit that terminates an ISDN line and performs signal processing for each layer, and information relating to each layer output from this signal processing unit are input to perform failure analysis. The ISDN line failure display device includes a failure analysis processing unit to perform and a display unit that displays the failure analysis result.

Here, a feature of the present invention is that a state number that is uniquely determined corresponding to the state of each layer is provided, and means for selecting this state number according to the information is provided.

When the state number changes, a table is set up in which the horizontal axis represents the state number after the transition and the vertical axis represents the state number before the transition, and a message uniquely determined according to this table is displayed on the display section. It is desirable to have means.

It is desirable to provide means for displaying this message on the display unit each time the state number changes.

[0011]

Function: Information regarding each layer is input, the state of each layer is analyzed, and the state number corresponding to the state is selected.
Here, the state may be a fault state or a line state. This state number changes as the state changes. At this time, the horizontal axis is the state number after the transition and the vertical axis is the state number before the transition.A message that is uniquely determined according to the table is set, and that message is displayed for each state transition. can do.

[0012] With this, the contents of the failure can be displayed in detail by a general expression. In addition, it is possible to set an arbitrary message and display the details of the failure. Therefore, it is possible to clearly display whether or not communication can be performed, and it is possible to recognize the content of the failure or the recovery state of the failure without requiring specialized knowledge.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of an apparatus according to the present invention.

According to the present invention, there are provided signal processing units 1 to 3 which terminate the ISDN line and perform signal processing on each layer.
An ISDN line failure display device including a failure analysis processing section 4 for inputting information on each layer output from the signal processing sections 1 to 3 and performing failure analysis, and a display section 6 for displaying the failure analysis result. is there.

Here, the feature of the present invention is that a state number uniquely determined corresponding to the state of each layer is provided, and the failure analysis processing unit 4 as means for selecting the state number according to the information. Is equipped with.

When the state number changes, a message is provided that is uniquely determined according to a state transition diagram as a table in which the horizontal axis represents the state number after the transition and the vertical axis represents the state number before the transition.

In the embodiment of the present invention, for each transition of the state number,
The fault analysis processing unit 4 reports the state to the fault display processing unit 5 according to the state transition diagram. The fault display processing unit 5 causes the display unit 6 to display this message.

Next, the operation of the embodiment of the present invention will be described. In FIG. 1, signal processing units 1 to 1 of layers 1 to 3 respectively.
The information on the new state change terminated at 3 is reported to the failure analysis processing unit 4. In the failure analysis processing unit 4, the analysis result is displayed in the failure display processing unit 5 based on the current status number and the status change information.
And report the status number. The failure display processing unit 5 replaces the analysis result with a display word or the like, and the display unit 6
To be displayed.

Next, the operation of the failure analysis processing section 4 will be described with reference to FIGS. FIG. 2 is a flowchart showing the operation of the failure analysis processing unit 4. FIG. 3 is a diagram showing a state transition diagram of the embodiment of the present invention. The fault analysis process
The process is started when a failure occurrence or recovery report from each of the signal processing units 1 to 3 of layers 1 to 3 or a call state change report from the layer 3 signal processing unit 3 is received (S1).
When the processing is started, the failure analysis processing unit 4 acquires the status number (S2). Then, one element in the state transition diagram shown in FIG. 3A is determined from the acquired state number and the content of the occurrence or restoration of the failure or the content of the change report of the call state (S3). As shown in FIG. 3B, one element is set with a state number to be transitioned when a state transitions and a set of analysis results to be reported to the fault display processing unit 5 when a fault is displayed. .

An analysis result is acquired from one element in the determined state transition diagram (S4). This analysis result is reported to the failure display processing unit 5 (S5). The next state number is set from the acquired element (S6). The fault display processing unit 5 causes the display unit 6 to display a display phrase corresponding to the reported analysis result.

FIG. 3 is a simple example of the contents of a state transition diagram having a state number, a state change, a fault state display, and the next state number used in the apparatus of the present invention.
In this example, the state number is "0" L1 async when the ISDN terminal is powered on. ISDN terminal
When the layer 1 is connected to the line and the layer 1 is established, the next state number "1" can be acquired by the state change, and the state number is updated to "1" L1 sync. After that, when the layer 2 is established, the next state number “2” is acquired, and the state becomes “2” L2 OK. Here, when a failure occurs in layer 1, the state number after the transition is “1” L1 a
It is sync, and the state number before transition is "2" L2 OK
Therefore, the message M1 "A line failure has occurred" is selected. The selection result is reported from the failure analysis processing unit 4 to the failure display processing unit 5 and displayed on the display unit 6 as a message. In addition, the user of the terminal makes a call,
When a failure occurs in layer 1 after the state of being in communication and shifting to the state of "3" L3 Talking, the state number after transition is "0" L1 unlike the above message.
async and the state number before the transition is “3” L3 t
Since it is alking, the message M2 "Disconnected due to line failure" is selected, and the selection result is reported from the failure analysis processing unit 4 to the failure display processing unit 5 and the message is displayed on the display unit 6 as described above. Is displayed as. This allows the user of the terminal to know the cause of the line disconnection. At the same time, in this case, the state number shifts to the state of "4" wait L2 OK.
When the layer 2 fault is removed, the state number after the transition is "2" L2 OK, and the state number before the transition is "4" w.
Since it is ait L2 OK, the message M3 of "ready for use" is displayed, and the user can directly recognize from the display unit 6 that communication is ready again.

[0022]

As described above, according to the present invention,
The details of the failure can be displayed in a general expression. In addition, it is possible to set an arbitrary message and display the details of the failure. Therefore, it is possible to clearly display whether or not communication can be performed, and it is possible to recognize the content of the failure or the recovery state of the failure without requiring specialized knowledge.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a failure analysis processing unit.

FIG. 3 is a diagram showing a state transition diagram of the embodiment of the present invention.

[Explanation of symbols]

 1 Layer 1 signal processing unit 2 Layer 2 signal processing unit 3 Layer 3 signal processing unit 4 Fault analysis processing unit 5 Fault display processing unit 6 Display unit M1 to M3 messages

Claims (3)

[Claims] 1. A signal processing unit that terminates an ISDN line and performs signal processing for each layer, and a failure analysis processing unit that inputs information relating to each layer output from this signal processing unit and performs failure analysis. In an ISDN line fault display device having a display section for displaying a fault analysis result, a state number uniquely determined corresponding to the state of each layer is provided, and means for selecting the state number according to the information is provided. An ISDN line failure display device characterized by the above. 2. When a state number transits, a table is set up in which the horizontal axis indicates the state number after the transition and the vertical axis indicates the state number before the transition, and a message uniquely determined according to this table is displayed on the display unit. The ISDN line fault display device according to claim 1, further comprising display means. 3. The I according to claim 2, further comprising means for displaying the message on the display unit each time the state number changes.
SDN line fault indicator.