JP3303215B2 - Communication network fault indication method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fault display system in a network management display system, more specifically, to collect and manage information from a communication network including an exchange and a data multiplexing device and to display the status of the communication network. In a network management display system for displaying on a screen, the present invention relates to a fault autofocus display of a communication network on a hierarchical network map group in which a communication network is simulatedly represented by a picture on a screen, and more particularly to an autofocus display method of a multi-failure.

[0002]

2. Description of the Related Art In order to efficiently operate and maintain a communication network, a network for collecting the configuration and operation information of the communication network and displaying the operation state on a map screen simulating a communication network of a display device based on the information. A management display system is provided. In particular, since the communication network spreads over a wide area and is large-scale, a technique for displaying a state using a network map group divided hierarchically according to geographical division, management division, level of detail, and the like has been described in the literature.・ A, Network Magazine, March (1991)
Year) pp. 10-15 (IEEE, NetworkMagazin)
e, March (1991) PP10-15) and Hewlett-Packard Journal, April (1990) pp. 60-65 (HEWLETT-PACKARD JOURNAL, APRI).
L (1990) PP60-65).

[0003]

However, in the above-mentioned prior art, when a failure occurs in a communication network, a map necessary for grasping the failure state from a hierarchical network map group, that is, a failure alarm is generated. Network maps and one-by-one representations of the entire group
When extracting a network map representing the occurrence site of one alarm, there is a problem that the operator needs to search the screen using a zoom function or the like.

Further, when a specific network map is zoomed at the time of occurrence of a failure and an additional failure occurs in another area,
The corresponding fault is not displayed on the displayed map screen. Even if the operator is notified by a fault message or the like, the operator reads the message and operates the corresponding map screen expressing the fault status. There is a problem that data must be searched by itself.

[0005] Further, since the display elements expressed in the top map are obtained by grouping and abstracting the display elements expressed in the lower map, the top map in the map hierarchy is fixed or operated. -Display on request
Even if a fault state is displayed by color display or the like as a representative of the top display element, if there is a fault corresponding to a plurality of display elements below the common top display element, the number of fault occurrences,
Since the fault location cannot be expressed, there is a problem that it is difficult to quickly grasp the fault status because the operator himself must search a map at an appropriate level of detail.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fault display system using a hierarchical network map of a network management and display system. Another object of the present invention is to provide a means for automatically specifying an appropriate network map that can be recognized without omission from a hierarchical map group.

Another object of the present invention is to provide a means capable of automatically updating a display map in response to a dynamic change in a failure situation such as additional failure occurrence or recovery from a failure in a communication network. It is in.

Another object of the present invention is to provide a fault auto-focus display system which can automatically display a map group which always focuses on a communication network fault situation.

[0009]

In order to achieve the above-mentioned object, in the fault display system according to the present invention, a communication network is geographically divided.
Hierarchy according to physical relationship, each layer level is a map screen with a different level of abstraction, and a map screen related to a part where a failure has occurred is displayed on a common screen. Storage means having data expressing the position of each map screen based on the hierarchical inclusion relationship, and a fault site for specifying a map screen group corresponding one-to-one with all fault sites occurring when a fault occurs in the communication network A screen specifying means for specifying, as the summary screen, one upper screen having the highest level of detail, including all the map screen groups in which the fault has occurred, using the data;
And a multi-screen specifying means.

[0010]

The fault site screen specifying means specifies a group of map screens corresponding to the fault site, and the summary screen specifying means uses data expressing the position of each map screen based on the hierarchical inclusion relationship between the screens. Since the summary screen is automatically specified, the status of the overall faults required by the operator and the status of each fault location can be instantly determined in response to a dynamic change in the fault status such as a fault occurrence, additional fault occurrence, or its recovery. Focus display can be performed automatically. The means for controlling the display of the failure part screen and the summary screen is to prioritize the display of the summary screen and the failure part screen or control the display timing according to the number of allowable display screens obtained by dividing the common screen. Can be.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 First, a first embodiment of the present invention will be described.
FIG. 1 is a block diagram showing an embodiment of a network management and display system to which a fault auto-focus display method according to the present invention is applied. The present system comprises a communication network 101 of a managed object and a network management display system 102. The network management display system 102 includes a communication control unit 103 for collecting alarm information on components constituting the communication network 101, and an alarm control unit 103. A database 104 for storing program information and display information, a database 104;
A work memory 105 for storing more necessary information for searching and temporarily storing the information, for specifying a troubled part screen / summary screen and for determining an alarm pitch and for storing the result is provided.

The network management and display system 102 further includes, as a program memory 110, a failure information collection / management unit 106 for managing collection of alarm information from a communication network and registration / update to a database; Fault / summary screen specifying / updating unit 107 for selecting / updating a fault display screen in accordance with the occurrence and dynamic change of the alarm, and an alarm pitch determination processing unit for determining the pitch of the buzzer based on the number of faults and importance Presenter 108 for generating, erasing, and updating display screens including a display screen 108 and a fault display screen, and controlling the buzzer sounding timing / pitch change.
An operation control unit 109 is provided. In addition, a CRT 111 for displaying a map screen, a keyboard 112 for an operator to input an open / close / transition of the map screen, a mouse 113, and a buzzer sounding device for generating a buzzer sound. 114, an I / O control unit 115 for controlling these inputs and outputs, and a CPU 116 for controlling access to inputs and outputs, a memory and a database, and execution of each program.

The site map display element / component correspondence table 2 stored in the display information database 104
An example of 00 is shown in FIG. This table has a data structure of the network map screen group 300 hierarchically arranged according to the inclusion relation of the geographical and physical viewpoints as shown in FIG. 201 is the component name in the alarm information, 20
2 is a display element ID corresponding to the component name, 203 is a map name, and 204 is a map hierarchy identifier.

FIG. 4 shows an example of an upper symbol / lower map correspondence table 400 stored in the display information database 104. This table is shown in FIG.
The display symbol (P
N1, PN2) and the corresponding information between the lower map screens (I, J). This table includes a corresponding site map screen 401 and a display site symbol ID 402.

Next, an example of the operation of the fault auto focus display method according to the present invention will be described with reference to FIGS.
FIG. 6 is an operation flowchart of a fault autofocus display process when a fault occurs in the network management and display system of FIG. First, when a failure occurs in the communication network 101, alarm information (failure component name, failure importance) of the communication network is notified to the communication control unit 103 of the network management and display system 102. Step 103 notifies the failure information collection / management unit 106 of the reception of the alarm information (6).
01).

The trouble information collection / management unit 106 stores the alarm information in the display information database 104 and issues a trouble display request to the presentation control unit 109 (602). The presentation control unit 109 which has received the failure display request issues a display screen selection determination request to the failure site / summary screen specific update processing unit 107 (603).

The failure site / summary screen specification update processing unit 107 which has received the display screen selection determination request receives the request shown in FIG. 2 stored in the display information database 104 in advance as shown in FIG. Referring to the corresponding table 200 (FIG. 2) between the definition display elements in the site map and the components of the communication network, and the component names in the generated alarm information (705), the information in the alarm information is referred to. Display element I corresponding to component name 201
D202 and the map name 20 including the display element
3. The entire map hierarchy identifier 204 (failure site screen) is extracted and stored in the work memory 105 (706).

Here, the value of the map hierarchy identifier 204 is
The hierarchical inclusion relationship between map screens is represented by a hierarchical numerical expression as shown in FIG. For example, at the same time, three pieces of alarm information (fault component name = PBXN)
o.1, Importance = Critical; Failure component name = WS
−04, importance = Warning; fault occurrence element name = PBXN
o.4, importance = Warning), a map hierarchy identifier 1.2.2.1 for the map name I, a display element ID = SN1, and a map hierarchy for the map name J from the corresponding table in FIG. Identifier 1.2.2.2, display element ID
= SN8, map hierarchy identifier for map name H
2.1.1, display element ID = SN9 is determined and stored in work memory 105.

Next, the faulty part / summary screen specification update processing unit 107 stores a high-level symbol / lower-level map correspondence table 400 as shown in FIG. 4 which is stored in the display information database 104 in advance. Of the failure site screen
The Mali screen is obtained by extracting a common part that is continuous from the top for all the map hierarchy identifiers 204 of the failure part screen (707). However, in the case of a single failure, a portion excluding the last numerical value of the map hierarchy identifier 204 is extracted, and the next higher map screen is obtained as the summary screen. Further, the map name 401 including the display element ID corresponding to the failure component, and the summary screen associated with the failure display element ID in the failure site screen from the upper symbol / lower map correspondence table 400 in FIG. Is specified and stored in the work memory 105.

For example, in the case of the above example, three map layer identifiers [1.2.2.1] and [1.
The common part of [2.1.1] and [1.2.2.2] is [1.
2], the screen C with the map hierarchy identifier = 1.2 becomes the fault summary screen 801. In addition, the failure site screen 80
The map names I, J, and H of 2, 803, and 804 correspond to the upper map screens F and H corresponding to I and J from the corresponding table 400 in FIG. The display site symbol IDs in the upper map screen (summary screen) C are L1 and L2 (708). After the above processing is completed, the failure part / summary screen specific update processing unit 1
07 is a processing completion notice for the presentation control unit 10.
Issue to 9

Returning to FIG. 6, the presentation control unit 109 notifies the warning pitch determination processing unit 108 of the warning pitch determination processing request (605), and the warning pitch determination processing unit 108
Are the alarms stored in the display information database 104.
The pitch is determined by referring to the system information and performing a numerical operation based on the number of occurrence failures and the degree of importance. For example, if the value S corresponding to the failure severity level is Critical = 5, Major = 4, Minor
= 3, Indeterminete = 2, Waring = 1, the number of fault occurrences N is single fault = 1, multiple faults (2 to 9) = 2, multiple faults (10 or more) = 3, number of faults The pitch T at the maximum importance S 'is T = N × S ′ ÷ 5, and if the value of T is 0 <T <1, the pitch of C (d) is
If ≤T <2, the pitch of E (mi); if 2≤T≤3, G
(S) is associated. In the above example, the number of fault occurrences is 3, S
_{Since 1} = 5, S ₂ = 1, and S ₃ = 1, S ′ = 5, N = 2
The pitch of G is determined at T = 2. The warning pitch determination processing unit 108 stores the determined pitch in the work memory 105, and notifies the presentation control unit 109 of the determination completion (606).

The presentation control unit 109 is controlled by the faulty part / summary screen specific update processing unit 107 to output a word.
Failure site map names and services stored in the
The name of the map is read, and the display information database 104 is read.
The I / O control unit 115 is requested to take out the corresponding map screen and display it on the CRT. Also, in the CRT display based on the failure response display element ID in the failure location map, the failure response display element and the site symbol in the map screen are displayed in different colors (red), and the buzzer sound of the buzzer sounding device 114 is determined at the determined pitch. I / O control unit 115 issues a notification
(607).

Finally, the I / O control unit 115 controls the CRT 1
A multi-window display of a summary screen and a failure part screen group is displayed on the display 11, and the buzzer sounding device 114 issues a buzzer sound. In the case of the above example, a multi-window display of, for example, four screens as shown in FIG. 9 is made, and a buzzer sound of a pitch of G is issued (608).

FIG. 10 is an operation flow of the presentation control unit 109 corresponding to the operation flow of FIG. If there is a display request (step 801), a screen selection determination request is issued to the failed part / thermal screen specific update processing unit 107 (802), and an alarm pitch determination request is issued to the alarm pitch determination processing unit 108 (803). Next, both processing units 107,
The display method of the summary screen and the part screen group is determined based on the content determined in step 108 (804). When a part of the failure is recovered (806), the display method of the corresponding summary screen and the part screen group is updated (807), and a similar change is requested to the I / O control unit 115 (806). 8
08).

Next, an example of the operation of the fault auto-focus display updating process at the time of fault recovery and additional fault occurrence will be described with reference to FIG. This operation is the same as that when a failure occurs, but the presentation control unit 109 sends a summary screen to the failure part / summary screen specific update processing unit 107 based on the updated latest alarm information. A request is made to update the part screen (802), and a request to change the pitch is made to the alarm pitch determination processing unit 108 (803). And both processing units 1
07 and 108, the presentation control unit 109 replaces the already displayed summary screen with the updated summary screen (step 804). A screen is additionally displayed on the CRT 111. If the failure has been recovered, the corresponding part screen being displayed is deleted in step 807.

Further, the I / O control unit 115 is notified to change the buzzer sound of the buzzer sounding device 114 based on the changed pitch and to issue an alarm (808). For example, in the example of FIG. 8, when the failure corresponding to the display element ID = SN9 is recovered, the summary screen is updated from the one showing the Kanto region to the one showing Tokyo as shown in FIG. At the same time, the screen of the failure site 1 is deleted and updated to the screen of only the failure sites 2 and 3 as shown in the figure. However, since the pitch T = 2 as in the case of the failure, the pitch of the buzzer sound is not changed.

With the above-described configuration and operation, a summary screen displaying the entirety of the fault condition at a level as detailed as possible and a fault-corresponding portion are displayed in response to a fault occurrence and a dynamic change in the fault condition. Since the system can automatically display and update the failure site screen, the operator can immediately recognize the failure status without having to search for the screen by the operator. Also, due to a change in pitch such as a buzzer sound, even if the operator is away from the screen of the network management display system, the amount and importance of the obstacle can be recognized by hearing.

[Embodiment 2] Next, as a second embodiment of the present invention, when there is a restriction on the number of screens that can be displayed on the CRT, priority is given to the faulty screens for the number of screens that can be displayed, and the rest are operated by the operator. The case of displaying by intervention will be described with reference to FIGS. FIG. 12 shows a modification of the display method determination processing in step 804 of FIG.

The system configuration and the basic operation are the same as those of the embodiment (1). In step 804 of FIG. 10, when the presentation control unit 109 displays the summary screen and the part screen group, the number of allowable display screens is overturned because there are already displayed screens (FIG. 120
1), the display of the number of displayable parts is prioritized in the order of the summary screen, the failure part screen having the higher failure importance, and (120)
2) Instruct the I / O control unit 115 to display a message urging the operator to delete the unnecessary screen (120).
3).

For example, in contrast to the example described in the embodiment (1), when the allowable display screen number is 4, and two screens (screen X and screen Y) which are not failure screens are displayed in advance, FIG. As shown, for the number of displayable screens 2, the summary screen and the PBX No. The part screen of the Ochanomizu site containing the number 1 is displayed with priority, and an unnecessary screen deletion message 1001 to the operator is displayed. When the operator deletes an unnecessary screen by using the keyboard 112 or the mouse 113, the presentation control unit 109 sends to the I / O control unit 115 the remaining trouble screen groups corresponding to the number of the deleted screens. Request and display priority.

With the above-described configuration and operation, even when the number of displayable screens is limited or when a large number of failures occur, the failure screens can be displayed in the limited number of displays in the order of the most important ones. , An effective fault notification can be given to the operator. Further, by prompting the operator to delete the unnecessary screen by the message notification, the failure notification can be performed without forcibly interrupting the operator work before the failure occurs.

[Embodiment 3] Next, as a third embodiment of the present invention, when the number of faults included in the summary screen is lower, the number of faults is displayed on the summary screen. , Server
The case in which the fault-applicable symbols in the Mali screen are displayed in different colors with the highest fault importance of the lower inclusion faults will be described with reference to FIGS. 2, 4, and 14. FIG.

The system configuration and operation are the same as those in the embodiment (1). In operation, the presentation control unit 109 determines in step 804 of FIG. 10 that, when displaying the summary screen, if the symbol corresponding to the fault on the summary screen includes a plurality of lower-level faults, FIG.
The number of faults (the number of fault-response display elements) is determined for each symbol represented on the summary screen from the corresponding table (200, 400), and the numerical value is displayed next to the corresponding symbol on the summary screen. Request to the O control unit 115. In addition, the I / O control unit requests the I / O control unit to display the corresponding symbol in different colors according to the color of the most significant lower-order failure. For example, in the case of the summary screen at the time of occurrence of a failure described in the embodiment (1), the site symbol L1 is the failure display element SN1.
(Importance = Critical) and SN8 (importance = Warning),
Since the site symbol L2 includes SN9 (importance = Warning), it is set that the importance is displayed in advance by Critical = red, Major = red, Minor = pink, Indeterminete = pink, Warning = yellow. As shown in FIG. 14, 2 is displayed next to L1 in numerical display 1101, L1 is displayed in red, and L2 is displayed in yellow.

With the above configuration and operation, the operation
The data can grasp the geographical spread of the generated faults, the number of generated faults, and the entirety of the faults, such as the fault importance, only on the summary screen.

[Embodiment 4] Hereinafter, as a fourth embodiment of the present invention, there is a restriction on the number of screens that can be displayed on a CRT, and the number of screens already displayed is displayed, and a failure screen cannot be displayed. Next, a case where the system automatically erases one screen and displays a summary screen will be described with reference to FIGS. 3, 12, and 15. FIG.

The system configuration and operation are described in the embodiment (1).
This is the same as the case (2). In the operation shown in FIG. 12, when the presentation control unit 109 cannot display the failure screen because of the already displayed screen (1201), the screen hierarchy identifier of the already displayed screen excluding the screen with the input focus has the shortest map hierarchy identifier ( The I / O control unit automatically deletes the top screen of the screen hierarchy corresponding to the screen with the same length (if there are a plurality of screens with the same number) (1204) and displays the summary screen instead. Request to 115 (1205). For example, in the example described in the embodiment (1), before the failure occurs, the screen A (map layer identifier =
1), screen B (1.1), screen D (1.1.1), and screen G (1.1.1.1) have already been displayed, and the input focus is on screen G; When a failure occurs at the portion J, the screen A is erased and a summary screen for the screens H and J is displayed instead as shown in FIG. The subsequent operation is the same as that of the embodiment (2).

With the above-described configuration and operation, even when the number of screens to be displayed is limited, unnecessary screens can be automatically deleted, and the operator can recognize the fault outline.

[0038]

According to the present invention, a network management display for collecting and managing the configuration and status information of a communication network and displaying the status on a geographical and hierarchical network map representing the communication network on the screen in a pseudo manner. In the system fault display, a screen group representing the fault summary and the fault location is automatically displayed and provided for dynamic changes in fault status such as fault occurrence, additional fault occurrence, and recovery. This eliminates the need for a screen search operation by the operator, and allows the operator to immediately and completely recognize the details and details of the failure without omission. Further, even when the number of display screens is limited, the operator can preferentially display the screens in the order of higher importance.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of a network management display system according to the present invention.

FIG. 2 is a diagram showing an embodiment of a site map display element / component correspondence table.

FIG. 3 is a diagram showing one embodiment of a group of geographical and hierarchical network map screens.

FIG. 4 is a diagram showing an embodiment of an upper symbol / lower map correspondence table.

FIG. 5 is a diagram showing a correspondence between a site symbol and a site map.

FIG. 6 is an operation flow of a fault auto focus display process.
FIG.

FIG. 7 is a diagram showing a processing flow of a failure site / summary screen specific update processing unit.

FIG. 8 is a diagram showing a method for specifying a fault autofocus display screen.

FIG. 9 is a diagram showing an embodiment of a failure autofocus display screen.

FIG. 10 is a diagram showing a processing flow of a presentation control unit.

FIG. 11 is a diagram showing an embodiment of a failure autofocus update display screen.

FIG. 12 is a diagram showing a processing flow of a presentation control unit according to another embodiment of the present invention.

FIG. 13 is a diagram showing an embodiment of a fault auto-focus priority display screen.

FIG. 14 is a diagram showing an embodiment of a failure auto-focus failure number display screen.

FIG. 15 is a diagram showing an embodiment of a fault auto-focus automatic summary display screen.

[Explanation of symbols]

101: communication network, 102: network management display system, 104
... Display information database, 110 ... Program memory,
111 CRT, 112 keyboard, 113 mouse, 114 buzzer sounding device, 115 I / O control unit,
116 ... CPU

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuhiko Nagai 1099 Ozenji Temple, Aso-ku, Kawasaki City, Kanagawa Prefecture Inside of Hitachi, Ltd.System Development Laboratory Co., Ltd. (72) Inventor Keitomo Suzuki 3-3-1 Sakae Naka-ku, Nagoya City, Aichi Prefecture No. 22 Inside Hitachi Central Software Co., Ltd. (72) Inventor Masato Saito 5030 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside Software Development Division, Hitachi, Ltd. (72) Inventor Shuji Fujino 5030 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd. Software Development Division (72) Inventor Yoshihiro Takahashi 6-81, Onoe-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Examiner, Hitachi Software Engineering Co., Ltd. Nokazu Kobayashi (56) References Japanese Patent Publication No. 58-31605 JP, B1) Ryoichi Sasaki, Yasuhiko Nagai, Suzuki Tomoo, construction IN 90-56 of Hugh Mann interface development guidelines of integrated network management system, IEICE, Institute of Electronics, Information and Communication Engineers, September 19, 1990, Vol. 90 No. 214, 001, CSNG199800906001 (58) Fields investigated (Int. Cl. ⁷ , DB name) H04L 12/24

Claims (5)

(57) [Claims] A communication network is hierarchized according to a geographical / physical relationship, each hierarchical level is a map screen with a different level of abstraction, and a map screen related to a site where a failure has occurred is displayed on a common screen. Storage means having data expressing the position of each map screen based on the hierarchical inclusion relationship between the map screens; and all faulty parts occurring when a fault occurs in the communication network.
A faulty part screen specifying means for specifying a map screen group corresponding to one-to-one, and a higher-level screen which includes all the map screen groups in which the fault has occurred using the data and is the most detailed level ,
The map associated with the map screen group where the fault has occurred
By identifying the common part of the group hierarchy identifier, the common part can be identified.
A communication screen fault display device comprising: a summary screen specifying means for specifying a map screen as a separate screen as a summary screen. 2. The communication network is hierarchized according to geographical / physical relations, each hierarchical level is a map screen with a different level of abstraction, and a map screen related to a site where a failure has occurred is displayed on a common screen. Storage means having data expressing the position of each map screen based on the hierarchical inclusion relationship between the map screens, and all the faulty parts that have occurred when a fault has occurred in the communication network. 1
Faulty part screen specifying means for specifying a map screen group corresponding to one-to-one; and using the data, a single upper-level screen including all the map screen groups in which the fault has occurred and having the highest level of detail Summary screen specifying means for specifying as a summary screen; display control means for simultaneously displaying the faulty part screen group and the summary screen on the screen; each time a fault is added or a fault is recovered, Means for automatically updating a summary screen and automatically adding / deleting the failure site screen. 3. The communication network fault display device according to claim 2, wherein a fault occurs while an allowable number of screen groups are already displayed on said screen, and a new summary screen or a part screen group is displayed. A communication network comprising means for automatically deleting one of the screens at the highest level of the screen inclusion hierarchy in the display screen group when the display is impossible, and displaying a summary screen instead. Fault indication device. 4. A communication network fault display device according to claim 2, wherein a fault occurs in a state where an allowable number of screen groups are already displayed on said screen, and a new summary screen or a part screen group is displayed. If it is not possible, a means for displaying a message prompting erasure of the part screen, and, after erasing the screen according to the number of erased screens, the new summary screen, and the part screen of higher importance in that order Means for automatically displaying a screen. 5. A computer system comprising a hierarchical network map screen group,
Information that collects and manages the status of the communication network and displays the map screen corresponding to the failed part on a common screen when a failure occurs. The correspondence information between the screen and the definition display element in the map screen, the correspondence information between the display element and the lower hierarchy map screen, and the map hierarchy identifier expressing the position of each map screen based on the hierarchical inclusion relationship between the map screens are registered. Data
A fault location screen specifying unit for specifying a map screen group corresponding to a fault location occurring at the time of occurrence of a fault in the communication network using the correspondence information; The upper-level screen that includes all of the map screen groups in which the fault has occurred and has the highest level of detail is associated with the map screen group in which the fault has occurred.
By specifying the common part of the map hierarchy identifier
A summary screen specifying unit that specifies a map screen having the common part as an identifier as a summary screen; and a fault screen display control unit that controls display of the fault site screen group and the summary screen. A communication network fault display device characterized by the above-mentioned.