JPH06232968A - Operation system for communication network - Google Patents

Abstract

PURPOSE:To improve the reliability and quality of a communication network by specifying a subscriber receiving a hindrance due to a fault system. CONSTITUTION:When a communication network installation management operation system 10 receives a fault message, a message analysis section 10D checks a content included in the message. As a result, when specific processing for a failed line is executed, the message is given to an installation configuration information retrieval section 10H, the retrieval section 10H retrieves a database 10G by using a fault installation name included in the message as a retrieval key to locate the faulty installation. A subscriber information retrieval section 10J retrieves a subscriber information database 101 by using the faulty installation name accommodating the subscriber received from the retrieval section 10H as a retrieval key to locate a faulty subscriber, that is, a faulty line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network operation system for managing a telecommunications network that provides a communication function between subscriber terminals such as telephone terminals and data terminals.
In particular, the present invention relates to a communication network operation system suitable for not only monitoring communication network equipment but also efficiently monitoring an affected line when the communication network equipment fails.

[0002]

2. Description of the Related Art Conventionally, for the purpose of improving the quality of a communication network such as a telephone network, for example, "Electronic Information and Communication Handbook" edited by The Institute of Electronics, Information and Communication Engineers (1988, published by Ohm Co., Ltd.)
As described on pages 2050 to 2051 of the above, a comprehensive communication network operation system that organically combines a network management system, a traffic management system, an auditing and testing system, and a sophisticated network monitoring / control function. Is being developed. In such a communication network operation system, a communication network equipment management operation system that monitors and maintains communication network equipment such as exchanges and multiplexers, and a failure related to subscriber management, particularly subscriber communication. There is a line-compatible operating system that manages.

FIG. 7 is a block diagram showing an example of the configuration of a conventional communication network operation system. The communication network equipment management operation system 3 detects a failure in a communication network equipment (described as P in the figure) 2A to 2F such as an exchange in the communication network 1 and promptly takes appropriate measures. To restore communication services. In addition, the line-corresponding operation system 4 includes subscriber terminals (T in the figure).
5A to 5B, a failure report or complaint regarding communication is accepted, and based on the report, a test relating to communication in the communication network 1 of the subscriber terminals 5A to 5B is performed, and when a failure is found, Make a repair arrangement to the department that maintains this faulty part.

When a failure occurs in the communication network equipment 2A to 2F, the communication network equipment management operation system 3 can immediately detect the failure by its monitoring function. However, due to the failure, the specific subscriber terminal 5A
5B, even if a communication failure occurs, the line-corresponding operation system 4 does not have a function of monitoring the communication network equipment 2A to 2F, and there is no cooperation with the communication network equipment management operation system 3. Person terminal 5
Until the failure report is received from A to 5B, the failure is not noticed. Therefore, after accepting the report, it is necessary to confirm with the communication network facility management operation system 3 the normality of the communication network facilities 2A to 2F accommodating the reporting subscriber terminals 5A to 5B, and the fault reporter terminal 5A. I can't get a quick and accurate response to ~ 5B.

Further, the monitoring information possessed by the communication network equipment management operation system 3 is the name of the failure device, the details of the failure, etc. The line-corresponding operation system can be simply notified to the line-corresponding operation system 4. Although the fourth side can recognize that some trouble has occurred in the communication network equipment 2A to 2F, it cannot know which subscriber 5A to 5B is affected by the trouble.

In order to improve the reliability of communication, the communication network equipment is made highly reliable, and at the time of equipment failure, the equipment and subscribers affected by this failure are immediately identified, and the network side It is necessary to deal with failures such as equipment switching and to switch lines on the subscriber side. There is a demand for an operation system for a communication network that not only monitors such communication network equipment but also immediately identifies a troubled line when the communication network equipment fails.

[0007]

The problem to be solved by the prior art is that, in the conventional technology, the monitoring information of the communication network equipment management operation system is not efficiently notified to the line corresponding operation system and the communication network equipment fails. The point is that the affected subscriber terminal cannot be grasped promptly. The object of the present invention is to solve these problems of the prior art,
Automatically and immediately identify the affected line when the communication network equipment fails, and provide equipment monitoring information including this affected line information.
(EN) Provided is a line-corresponding operation system for managing subscribers, or a communication network operation system capable of improving reliability and quality of a communication network by notifying the subscriber.

[0008]

In order to achieve the above object, the operation system of the communication network of the present invention is
(1) It consists of a communication network equipment management operation system that monitors and maintains communication network equipment such as exchanges and multiplexers, and a line-corresponding operation system that manages failures related to subscriber communications. In a communication network operation system that comprehensively performs network management, traffic management, audits, tests, etc., the subscribers who are affected by the failure of the communication network equipment detected by the communication network equipment management operation system are identified and It is characterized in that the affected line or line-corresponding operation system is provided with an affected line identification processing unit for notifying a failure of the communication network equipment. (2) In the operation system of the communication network described in (1) above, the affected line identification processing unit stores the subscriber's terminal number and service attribute, and subscriber information including the accommodation switch. An information database, a facility configuration information database that stores configuration information of communication network facilities including attribute information and connection relation information of communication network facilities such as exchanges,
The equipment configuration information database is searched based on the failure notification information from the communication network equipment, and the equipment configuration information search unit that identifies the affected equipment affected by the failure of the communication network equipment and this equipment configuration information search unit are specified. A subscriber information search unit that searches the subscriber information database based on the identification information of the affected equipment and identifies the affected subscriber who has an abnormality in communication due to a failure of the communication network equipment, and this subscriber information search unit The information distribution unit for notifying the troubled subscribers or the line-corresponding operation system of the failure of the communication network equipment is provided. (3) In the operation system of the communication network according to (1) or (2), the affected line identifying processing unit is provided in the communication network facility management operation system. .

[0009]

According to the present invention, the operation system of the communication network can comprehensively monitor the communication network equipment and the communication of the subscriber, and can improve the communication reliability. That is, the troubled line specifying processing unit automatically and immediately specifies the troubled line when the communication network equipment fails based on the management function of the communication network equipment by the communication network equipment operation system. For example, the troubled line identification processing unit stores a subscriber information database that stores terminal numbers, service attributes, subscriber information such as accommodation exchanges, and attribute information and connection-related information about communication network equipment such as exchanges. The equipment configuration information database is provided, and when a failure is detected by a communication network equipment failure notification, etc., the equipment configuration information database is searched using the device number of the failed equipment as a key, and the connection relation between the equipment indicates the failure. In addition to identifying the affected equipment, the subscriber information database is searched using the device number of the affected equipment as a key to identify the subscribers who have communication problems due to the equipment failure. Then, the equipment monitoring information by the communication network equipment operation system including the affected line information is notified to the line corresponding operation system for managing the subscriber or the subscriber. As a result, the operation system of the communication network can cope with the failure such as switching of the communication network equipment on the network side and the line switching on the subscriber side, and efficiently deal with the failure of the communication network equipment. .

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the configuration relating to the present invention of the operation system of the communication network of the present invention. In the present embodiment, the communication network equipment management operation system 10 includes a troubled line identification processing unit 10P according to the present invention, and communication network equipment such as an exchange in the communication network 1 (denoted by P in the figure) 2A to. If a failure occurs on 2F, detect the failure and take appropriate measures promptly.
While restoring the communication service, the affected line identification processing unit 10P identifies the subscriber terminal (described as T in the figure) 11 that is affected by the failure of the communication network equipment 2A to 2F, and the affected subscriber. Terminal 11 or each subscriber terminal (in the figure,
Notated to any of the line-corresponding operation systems 4 that manage the communication states of 5A to 5B and 11.

As described above, in the operation system of the communication network of this embodiment, the communication network equipments 2A to 2F have a failure, which causes a certain specific subscriber terminal 5A.
5B, even if a communication failure occurs, the troubled line identification processing unit 10P provided in the communication network equipment management operation system 10 can immediately detect the failure and switch the equipment on the network side. It is possible to efficiently deal with the failure and line switching on the subscriber side. Hereinafter, the affected line identification processing unit 10P will be described in detail with reference to FIG.

FIG. 1 is a block diagram showing an embodiment of the configuration relating to the present invention of the communication network equipment management operation system in FIG. The configuration of the communication network equipment management operation system 10 according to the present embodiment is roughly classified into FIG.
The message reception processing unit 10A for receiving a message from the communication network equipment 2A to 2F side, and the command transmission processing unit 10B for controlling the communication network equipment from the communication network equipment management operation system 10 side.

The command transmission processing unit 10B includes a command receiving unit 10L that receives commands from the subscriber terminals 5A to 5B in FIG. 2 and a command that analyzes the received commands and edits them into a format for transmission to communication network equipment. The analysis / editing unit 10M and the command transmitting unit 10N that performs a process of transmitting the edited command to the corresponding communication network facility. Further, the message reception processing unit 10A includes a message receiving unit 10C that receives a message from a communication network facility, a message analyzing unit 10D that analyzes the received message, and
A message storage unit 1 for storing the received message in a storage medium in the communication network facility management operation system 10.
0E, a message distribution unit 10F that delivers a message to a predetermined terminal, and an affected line identification processing unit 10 that identifies the affected line based on the received message according to the present invention.
It is composed of P.

Further, the troubled line identification processing unit 10P stores a subscriber information database 10I for accumulating subscriber terminal numbers and service attributes, and subscriber information such as accommodation switches.
And a facility configuration information database 10G for accumulating attribute information and connection relation information of the communication network facility, and a facility configuration information database 10G by using the device number of the faulty communication network facility indicated by the received message as a key, and the communication facility From the connection relationship between the equipment configuration information search unit 10H that identifies the affected equipment affected by the failure, and the subscriber information database 10I using the equipment number of the affected equipment identified by this equipment configuration information search unit 10H as a key. 2 and a subscriber information search unit 10J that identifies a subscriber terminal that causes communication abnormalities due to a communication network facility failure, the subscriber terminal identified by this subscriber information search unit 10J, and the line correspondence in FIG. It is configured by an information distribution unit 10K that notifies the operation system 4.

The subscriber information database 10I stores, for each subscriber, the exchange that accommodates each terminal, the accommodation position information of the subscriber in the exchange, the line number (telephone number), the service attribute,
Information such as an identifier of a terminal or a line-corresponding operation system to be notified when a line is damaged due to equipment failure is accumulated, and the equipment configuration information database 10G stores attribute information and connection information of communication network equipment such as an exchange. accumulate. Hereinafter, the operation of identifying the affected line by the communication network facility management operation system 10 having such a configuration will be described.

When a failure occurs in the communication network equipment,
The communication network equipment detects the failure and notifies the communication network equipment management operation system 10 of the failure message. This message includes the name of the failed equipment and the details of the failure. Communication network equipment management operation system 10
When the message receiving unit 10C receives the message, the message analyzing unit 10D checks the faulty device name and the fault content included in the message to determine whether or not the message should be subjected to the troubled line identifying process. In the message analysis unit 10D, a message for which the process of identifying the affected line is to be performed is registered in advance.

If the message is a message for specifying the affected line, the information of the message is passed to the equipment configuration information search unit 10H, and this equipment configuration information search unit 10H is sent.
Then, the equipment configuration information database 10G is searched by using the failure equipment name included in the message as a search key, and the affected equipment that accommodates the subscribers under the corresponding failure equipment is specified. In the subscriber information search unit 10J, the subscriber information database 10I is used with the affected equipment name accommodating the subscriber who has taken over from the equipment configuration information search unit 10H as a search key.
To identify the affected subscriber, that is, the affected line. The information on the affected line thus identified is distributed by the information distribution unit 10K to a predetermined terminal or a line-corresponding operation system.

The operation of the communication network equipment management operation system 10 according to the present invention will be described below with reference to FIGS. FIG. 3 is a block diagram showing an embodiment of the connection configuration of the communication network equipment in FIG. In the present embodiment, the subscriber switching equipment is targeted, and analog and
Line processing modules 20 and 21 that accommodate ISDN subscriber terminals 5A and 5B, separate / multiplex a circuit switched call and a packet switched call, and perform call processing related to the circuit switched call,
The connection configuration is such that the packet processing module 22 for processing an ISDN packet call and the remote subscriber terminals 5C to 5D are accommodated, and the remote subscriber line multiplex transmission device 23 that multiplexes and sends to the line processing module 21 is connected. Further, the packet processing module 22 accommodates a plurality of line processing modules 20 and 21 having the configuration shown in FIG.

FIG. 4 is a block diagram showing an embodiment of the configuration of the line processing module in FIG. The line processing module 21 of the present embodiment connects the subscriber circuits 21H to 21K terminating the subscriber lines and the remote subscriber line multiplex transmission device 23 including the subscriber circuits 23B to 23C and the multiplexer 23A. Multiple subscriber line terminal device 2 for controlling
1L, the subscriber circuits 21H to 21K and the multi-subscriber line terminal equipment 21L are concentrated, and the concentrating and allocating units 21F to 21G for allocating to a specific channel, call control information and main information (actual communication information). Demultiplexing / multiplexing units 21D to 21E for demultiplexing and multiplexing, a speech path unit 21A that performs line switching processing, a central processing unit 21B that controls the entire line processing module 21 and performs call processing, and call control information It is configured by a signal processing unit 21C that performs signal processing.

An example of the construction of the subscriber information database 10I of the communication network equipment management operation system 10 in FIG. 1 for the communication network equipment having the constructions shown in FIGS. 3 and 4 will be described below. 5 shows.

FIG. 5 is an explanatory diagram showing an embodiment of the configuration of the subscriber information database of the communication network equipment management operation system in FIG. 1 according to the present invention. As the data items of the subscriber information database of this embodiment, a line processing module number 101 that accommodates a subscriber terminal and a subscriber accommodation position number 102 that is uniquely assigned to each subscriber corresponding to each line processing module number. , The subscriber's line number 103 and the service used by the subscriber, such as analog telephone service (denoted by A in the figure) or ISD
N service (denoted by I in the figure), ISDN circuit switching service (denoted by CS in the figure), ISDN packet switching service (denoted by PS in the figure), etc. There is a terminal to be used or an identifier 105 of the line corresponding operation system.

The subscriber accommodating position number 102 is given by a combination of the concentrating and allocating unit number 106 and the subscriber circuit number 107 for the subscribers directly accommodated in each line processing module. For the subscribers accommodated in the subscriber line multiplex transmission apparatus 23, the line concentrator / allocation unit number 106, the remote subscriber line multiplex transmission apparatus number (indicated as RT number in the figure) 108, and the subscriber circuit number (see FIG. Middle, subscriber circuit number in RT and description) 109. By searching the subscriber information database having such a configuration, the subscriber information search unit 10J in FIG. 1 identifies the affected line.

FIG. 6 is an explanatory view showing an embodiment of the configuration of the facility configuration information database of the communication network facility management operation system in FIG. 1 according to the present invention. The facility configuration information database of this embodiment includes, for example, a packet processing module number 110 indicating the number of each packet processing module to be managed, such as the packet processing module 22 in FIG. 3, and the line processing modules 20 to 20 in FIG. 21 and the like, packet processing module 22
The data item of the accommodated line processing module number 111 indicating the number of the line processing module accommodated in the packet processing module, the line IF number 112 in the packet processing module indicating the line accommodated in each packet processing module, and the line processing module There is a data item of the connection line information 114 showing the connection connection state of the line, such as the line IF number 113 in the line processing module showing the line to be stored.

By searching the subscriber information database and the equipment configuration information database having the configurations shown in FIGS. 5 and 6 as described above, the subscriber information search unit 10J in FIG. 1 identifies the affected line. The operation of the present embodiment according to the present invention will be described below with reference to FIGS. 3 and 4 based on the system configuration of FIG.

In FIG. 3, the line processing module 21,
When a failure occurs during operation, each of the communication network equipments of the packet processing module 22 and the remote subscriber line multiplex transmission apparatus 23 autonomously detects the failure and uses the failure information as a message in FIG. Notify the communication network equipment management operation system 10. When the communication network equipment management operation system 10 of FIG. 1 receives a failure message from the communication network equipment, the message analysis unit 10D analyzes the message and determines whether or not the message is a target of the troubled line identification processing. To do. If the message is a target message, the affected line identification process is roughly divided into the following three cases according to the faulty device name and the fault content.

(1) In the case of a subscriber unit failure such as a subscriber line failure A subscriber line medium failure, a protocol error in the ISDN user / network interface, etc., causes communication addition or disconnection in a subscriber unit, communication failure, etc. It becomes a breakdown of. When the line processing module 21 in FIG. 3 detects such a failure, the line processing module 21 notifies the communication network equipment management operation system 10 in FIG. 1 of the detected failure content and the accommodation position number of the subscriber as a failure message.

In the communication network equipment management operation system 10 shown in FIG. 1, when this failure message is received, the message analysis unit 10D checks the message and determines that it is a message for performing the troubled line identification processing. . Then, the subscriber information search unit 10J of FIG.
FIG. 6 is a diagram of the items shown in FIG. 6 with the message analysis unit 10D of FIG. 1 taking over the message information and using the message transmission source line processing module number and the subscriber accommodation position number included as parameters in the message as search keys. The subscriber information database 10I of No. 1 is searched to identify the line number corresponding to the affected accommodation position number, that is, the affected line number. Then, the information distribution unit 10K of FIG. 1 distributes the affected line number and the failure status in accordance with the terminal to be notified or the line operation system identifier included in the subscriber information.

(2) Case of failure of common device in line processing module 21 of FIG. 4 When a failure of a common device in line processing module 21 of FIG. 4 occurs, a plurality of specific devices accommodated in this common device Communication failure occurs for the subscriber. As an example, a case where the line concentrating and allocating unit 21F shown in FIG. 4 fails will be described. When the line processing module 21 in FIG. 4 detects a failure in the line concentrating and allocating unit 21F, the detected failure content, the common device name (concentrating line and allocating unit) in failure, and its number are used as a failure message in FIG. To the communication network equipment management operation system 10.

In the communication network equipment management operation system 10 shown in FIG. 1, when this failure message is received, the message analysis unit 10D determines that the message is for performing the troubled line identification process, and searches for subscriber information. The message information is delivered to the section 10J. Then, in the subscriber information search unit 10J of FIG. 1, the message transmission source line processing module number included as a parameter in the message, the failure common device name (concentrator and allocation unit), and the number are used as search keys. Of the subscriber information database 10I. The affected line number is specified by extracting all the subscribers whose concentrator and allocation unit numbers in the subscriber accommodation position number match the failed device number. Then, the information information distribution unit 11 of FIG. 1 distributes the affected line number and the failure status according to the terminal to be notified or the line operation system identifier included in the subscriber information.

(3) Case of System Down of Packet Processing Module When the system down or system restart processing occurs in the packet processing module 22 shown in FIG. 3, the ISDN accommodated in this packet processing module 22
For the packet subscriber, communication failure or communication failure such as communication disconnection occurs. In the communication network equipment management operation system 10 shown in FIG. 1, when this failure message is received from the packet processing module 22 in FIG. 3, the message analysis unit 10D determines that the message is for performing the troubled line identification processing. Then, the information on the message and the fact that the packet service cannot be used are delivered to the equipment configuration information searching unit 10H.

This equipment configuration information retrieval unit 10H shown in FIG.
Then, the equipment configuration information database 10G of FIG. 1 is searched using the message transmission source packet processing module number included as a parameter in the message as a search key,
By obtaining the numbers of all the line processing modules accommodated in this packet processing module, the affected line processing modules 20 to 21 in FIG. 3 are specified. Further, the subscriber information search unit 10J of FIG. 1 indicates that the faulty line processing module number and the packet service cannot be used by the equipment configuration information search unit 10 of FIG.
From the H, the subscriber information database 10I of FIG. 1 consisting of the items shown in FIG. 5 is searched by using the disordered line processing module number and the service used by the subscriber as an ISDN packet, and the ISDN packet service is searched. Identify the affected line for. Then, the information distribution unit 11 of FIG. 1 distributes the affected line number, the failure status, and the fact that the packet service cannot be used according to the identifier of the terminal or the line-corresponding operation system to be notified included in the subscriber information.

As described above with reference to FIGS. 1 to 6, in the operation system of the communication network of this embodiment,
When a communication network equipment fails, the equipment affected by the failure and the affected subscriber can be automatically specified, and the communication network manager and the subscriber can be immediately notified. As a result, the communication network manager can take a trouble response such as a network configuration change such as a detour, a line accommodation change, and a priority restoration of important subscribers. Further, the subscriber can minimize the interruption of work by switching to the backup line.

The present invention is not limited to the embodiment described with reference to FIGS. 1 to 6, and various modifications can be made without departing from the scope of the invention. For example, in the present embodiment, the affected line identification processing unit is provided in the communication network equipment management operation system, but it may be provided separately from the communication network equipment management operation system.

[0034]

According to the present invention, not only the communication network equipment can be monitored, but also the troubled line due to the failure of the communication network equipment can be efficiently monitored, and the performance of the operation system of the communication network is improved. It is possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a configuration according to the present invention of the communication network equipment management operation system in FIG.

FIG. 2 is a block diagram showing an embodiment of a configuration relating to the present invention of the operation system of the communication network of the present invention.

FIG. 3 is a block diagram showing an embodiment of a connection configuration of the communication network equipment in FIG.

FIG. 4 is a block diagram showing an embodiment of the configuration of the line processing module in FIG.

5 is an explanatory diagram showing an example of a configuration according to the present invention of a subscriber information database of the communication network facility management operation system in FIG. 1. FIG.

6 is an explanatory diagram showing an embodiment of the configuration of the facility configuration information database of the communication network facility management operation system in FIG. 1 according to the present invention.

FIG. 7 is a block diagram showing an example of the configuration of an operation system of a conventional communication network.

[Explanation of symbols]

1 Communication Network 2A to 2F Communication Network Equipment 3 Communication Network Equipment Management Operation System 4 Line Operation System 5A to 5D Subscriber Terminal 10A Message Reception Processing Section 10B Command Transmission Processing Section 10C Message Reception Section 10D Message Analysis Section 10E Message Storage Section 10F Message distribution unit 10G Facility configuration information database 10H Facility configuration information search unit 10I Subscriber information database 10J Subscriber information search unit 10K Information distribution unit 10L Command receiving unit 10M Command analysis / editing unit 10N Command transmitting unit 10P Faulty line identification processing unit 11 Subscriber terminal 20, 21 Line processing module 21A Speech path section 21B Central processing unit 21C Signal processing section 21D-21E Separation / multiplexing section 21F-21G Concentration and allocation section 21H-21K Addition Incoming circuit 21L Multiple subscriber line terminal device 22 Packet processing module 23 Remote subscriber line multiplex transmission device 23A Multiplexing device 23B-23C Subscriber circuit 101 Line processing module number 102 Subscriber accommodation position number 103 Line number 104 Utilization Service 105 Identifier of terminal or line-corresponding operation system to be notified at the time of failure 106 Concentration and allocation number 107 Subscriber circuit number 108 Remote subscriber line multiplex transmission device number 109 Subscriber circuit number 110 Packet processing module number 111 Accommodating line processing Module number 112 Packet processing module internal line IF number 113 Line processing module internal line IF number 114 Connected line information

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yuko Chida 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (3)

[Claims] 1. A communication network equipment management operation system for monitoring and maintaining communication network equipment such as an exchange and a multiplexer, and a line-corresponding operation system for managing a failure or the like related to a subscriber's communication. In a communication network operation system that comprehensively performs network management and traffic management of the network, audits and tests, etc., identify the subscribers who are affected by the failure of the communication network equipment detected by the communication network equipment management operation system, An operation system of a communication network, characterized in that the affected subscriber or the operation system corresponding to the line is provided with an affected line specifying means for notifying a failure of the communication network equipment. 2. The operation system of the communication network according to claim 1, wherein the troubled line identifying means stores the subscriber number including the terminal number and service attribute of the subscriber and the accommodation exchange. An information database,
A facility configuration information database that stores configuration information of the communication network facility including attribute information and connection relation information of the communication network facility such as an exchange, and a search of the facility configuration information database based on the failure notification information from the communication network facility. , Equipment configuration information search means for identifying affected equipment affected by the failure of the communication network equipment, and searching the subscriber information database based on the identification information of the affected equipment identified by the equipment configuration information search means The subscriber information retrieving means for identifying a distressed subscriber who causes an abnormality in communication due to a failure of the communication network equipment, and the distressed subscriber and the line-corresponding operation system identified by the subscriber information retrieving means An operation system for a communication network, comprising: an information distribution means for notifying a failure of network equipment. 3. The operation system of the communication network according to claim 1, or 2.
An operation system of a communication network, wherein the troubled line identifying means is provided in the communication network facility management operation system.