JP4866798B2 - Remote setting system, line management method, and computer program - Google Patents

Description

  The present invention relates to a remote setting system for setting a subscriber network terminator, which is a telecommunications line facility, from a remote location, in order to manage line-specific information and setting information of the subscriber network terminator for each subscriber line. The present invention relates to a remote setting system, a line management method, and a computer program.

FIG. 30 is a diagram showing a schematic configuration of a conventional remote setting system.
In the figure, a subscriber network is installed in the premises of a subscriber who is provided with telecommunications services by a telecommunications carrier (a telecommunications carrier defined by the Telecommunications Business Law, which is primarily a first-class telecommunications carrier) Termination equipment is installed. A subscriber network termination device is installed in a subscriber's home, one for each subscriber line that connects the facilities of the telecommunications carrier and the subscriber's home, and terminates the network managed by the subscriber to provide the telecommunications business. Is a telecommunications line facility interconnected with a person's network. Thus, the subscriber network termination device is a telecommunications line facility installed by a telecommunications carrier to provide telecommunications services. However, since it is installed in the subscriber's home, the telecommunications carrier directly It is difficult to set up. Therefore, information on the subscriber network termination device is performed by remote setting using a remote setting system.

  As shown in FIG. 30, the remote setting system manages line-specific information (such as a network address and a station code of the line) of each subscriber line and setting information related to the subscriber network terminator. It has a database that can add, delete, search, and update records of the information. Further, the remote setting system is a means for communicating with a subscriber network terminating device, a setting value inputting means for changing setting information relating to a subscriber network terminating device for an arbitrary line, and a service order to be entered to newly establish or abolish an arbitrary line. Service order input means is provided.

  As shown in FIG. 30, the remote setting is performed as a response to the setting information request transmitted by the subscriber network terminating device. The trigger for transmitting the setting information request is when the subscriber network terminator periodically transmits the setting information request to the system (periodic request) and when the telecommunications carrier sends the system information to the subscriber network terminator. When sending a command to send a setting information request immediately (immediate request), and when the subscriber network termination device is connected to the line for the first time in the factory default state, it is in the startup sequence There are three patterns for transmitting an initial setting information request (initial request).

  In the remote setting system for remotely setting the subscriber network terminator existing for each subscriber line as described above, information on the subscriber line and setting information of the subscriber network terminator connected to the line are: As shown in FIG. 31, the subscriber identifier and the line identifier are stored and managed in the database using the main key. Therefore, when the telecommunications carrier changes the setting information of the subscriber network terminator connected to an arbitrary subscriber line, the database is searched using the primary key in order to find the target record. Thereafter, a request for setting information is received from the subscriber network termination device, and remote setting is performed by transmitting the setting information to the device.

The operation of the record of the subscriber line in the database of the remote setting system is performed by the service order. For example, when a subscriber contracts with a telecommunications carrier in order to receive telecommunications services, the remote setting system designates a newly generated subscriber identifier and a line identifier to create a “new line” service order. And a new line record is generated using the identifier as a primary key. Alternatively, if a record already exists but a value indicating “invalid” is stored in the flag indicating the line state and logically deleted, the status flag of the record is set to a value indicating “valid”.
Conversely, when the contract between the subscriber and the telecommunications carrier is canceled, the subscriber order and the line identifier of the target line are specified, and the service order of “line abandonment” is input, and this identifier is held. The record is deleted. Alternatively, a value indicating “invalid” is stored in the aforementioned status flag, and the line is logically deleted.

On the other hand, there is a technique for inheriting original subscriber data as new subscriber data (see, for example, Patent Document 1). This technology takes over the subscriber data held in the electronic exchange on-line and in real time when the system program is changed in the electronic exchange.
Japanese Patent Application No. 06-296032

  In the conventional service order line management method described above, when the subscriber line currently in use is changed to another line for some reason, such as when a subscriber moves, the end of the subscriber network used for the line before the change is used. There is a problem that the setting information of the device is not carried over to the subscriber network terminating device connected to the changed line. However, the technique of Patent Document 1 takes over subscriber data at the time of program update, and even if it is applied to setting information held by a subscriber network termination device, the above-described problem cannot be solved.

  The present invention has been made in view of such circumstances, and the object of the present invention is to join a subscriber's home connected to a new line even after any subscriber has changed the subscriber line. It is an object of the present invention to provide a remote setting system, a line management method, and a computer program that can take over the setting information used in the subscriber network terminating device of the line before change to the subscriber network terminating device.

In order to solve the above problems, the present invention remotely sets a subscriber network terminator connected to a subscriber line, and sets the subscriber network terminator before moving the subscriber line after moving the subscriber line. Is a remote setting system that can be taken over by a subscriber network terminator, a subscriber identifier that uniquely identifies the subscriber, a line identifier that uniquely identifies the subscriber line, and a status flag that indicates whether the subscriber line is valid Line change flag indicating whether the line is changing without changing the line identifier, line specific information indicating information unique to the subscriber line, change specific indicating the line specific information to be set for the subscriber line after movement Information and storage means for storing management data comprising records including setting information of the subscriber network termination device, a subscriber identifier of the subscriber who moves the subscriber line, a line identifier of the destination subscriber line, and , Transfer The line generation request input means for receiving the line unique information of the destination subscriber line and the request for generation of another line, the subscriber identifier received by the line generation request input means, and the subscriber line are valid. The management data is retrieved by a status flag having a value indicating that the line acquisition unit acquires the line identifier from the specified record, the line identifier acquired by the line acquisition unit, and the line generation request input unit inputs And a subscriber identifier received by the line generation request input means when it is determined that the comparison means is the same. The management data is searched by the line identifier and a value indicating that the currently used subscriber line is valid is stored in the line change flag of the specified record, and Update means for storing the line-specific information received by the line generation request input means in the change-specific information of the network and a notification that the subscriber network terminator is connected to the destination subscriber line In addition, the change unique information of the record updated by the updating means is notified to the subscriber network terminating device, and the change unique information is stored in the line unique information of the record, and the value of the change unique information of the record is set. The remote setting system further comprises deletion means for further storing a value indicating that the destination subscriber line is valid in the line change flag of the record.
The storage means corresponds to the database server 14 in FIG. 1, the line generation request input means, the line acquisition means, the comparison means, and the update means are in the service order input interface server 13 in FIG. This corresponds to the subscriber network termination device interface server 12 of FIG.

Further, the present invention is the remote setting system described above, wherein a line abandonment request input means for receiving a subscriber identifier and a line identifier of a subscriber line before movement and a line abolition request, and the line abolition request input Line abandon setting means for searching the management data by means of the subscriber identifier and line identification information received by the means, and storing a value indicating that the line is not being changed in a line changing flag of the specified record; Is further provided.
The line abolition request input means and the line abolition setting means correspond to the service order input interface server 13 in FIG.

Further, the present invention is the above-described remote setting system, and when it is determined that the comparison means are not the same, the subscriber identifier, the line identifier, and the line specific information received by the line generation request input means, And adding means for adding a record in which a status flag having a value indicating that the subscriber line is valid is added to the management data, wherein the takeover means includes a subscriber network termination device connected to the destination subscriber line. When the notification of connection is received, the setting information in the record specified by the line acquisition means is notified to the subscriber network terminating device and stored in the setting information of the record added by the adding means It is characterized by.
The adding means corresponds to the service order input interface server 13 in FIG.

Further, the present invention is the remote setting system described above, wherein a line abandonment request input means for receiving a subscriber identifier and a line identifier of a subscriber line before change and a line abolition request, and the line abolition request input Line abandonment setting means for retrieving the management data from the subscriber identifier and the line identification information received by the means, and storing a value indicating invalidity in the status flag of the specified record, To do.
The line abolition request input means and the line abolition setting means correspond to the service order input interface server 13 in FIG.

  Further, the present invention remotely sets a subscriber network terminator connected to a subscriber line, and sets the subscriber network terminator before moving the subscriber line to the subscriber network terminator after moving the subscriber line. Is a line management method used in a remote setting system that can be taken over by the remote setting system. The remote setting system includes a subscriber identifier that uniquely identifies a subscriber, a line identifier that uniquely identifies the subscriber line, and whether the subscriber line is valid. Status flag indicating the status, line changing flag indicating whether the line identifier is unchanged, line specific information indicating information unique to the subscriber line, line specific to be set for the moved subscriber line A storage means for storing management data consisting of a record including change specific information indicating information and setting information of the subscriber network termination device, and a subscriber identifier for moving the subscriber line; A line generation request input process for receiving a line identifier of a subscriber line, line unique information of a destination subscriber line, and a generation request for another line, and a subscriber who has received the input in the line generation request input process A line acquisition process of retrieving the management data by using an identifier and a status flag having a value indicating that the subscriber line is valid, and acquiring a line identifier from the specified record, and a line identifier acquired in the line acquisition process And the line identifier received in the line generation request input process, and a comparison process for determining whether or not they are the same, and the line generation when it is determined that they are the same in the comparison process The management data is searched by the subscriber identifier and the line identifier received in the request input process, and is currently used for the line change flag of the specified record. An update process for storing the line-specific information received in the line generation request input process in the change-specific information of the record, and a destination subscriber. When the notification that the subscriber network termination device is connected to the line is received, the change unique information of the record updated in the updating process is notified to the subscriber network termination device, and the change unique information is A takeover process of storing in the line specific information of the record and deleting the value of the change specific information of the record, and further storing a value indicating that the destination subscriber line is valid in the line change flag of the record; A line management method characterized by comprising:

  The present invention also provides a computer used as a remote setting system for remotely setting a subscriber network termination device and transferring the settings of the subscriber network termination device before the line movement to the subscriber network termination device after the line movement. A subscriber identifier that uniquely identifies the subscriber, a line identifier that uniquely identifies the subscriber line, a status flag that indicates whether the subscriber line is valid, and a line that indicates whether the line change is in progress without changing the line identifier. A record containing a changing flag, line specific information indicating information specific to the subscriber line, change specific information indicating line specific information to be set in the moved subscriber line, and setting information of the subscriber network termination device Storage means for storing management data, subscriber identifiers of subscribers who move subscriber lines, line identifiers of destination subscriber lines, and line-specific information of destination subscriber lines; Line management request input means for receiving an input of a line generation request, a subscriber identifier received by the line generation request input means, and a status flag having a value indicating that the subscriber line is valid. The line acquisition means for acquiring the line identifier from the specified record, the line identifier acquired by the line acquisition means is compared with the line identifier received by the line generation request input means, and is the same When the comparison means for determining whether or not the comparison means is the same, the line generation request input means retrieves the management data by the subscriber identifier and the line identifier received and specified A value indicating that the currently used subscriber line is valid is stored in the line change flag of the record, and the line generation request is input to the change specific information of the record. Update means for storing the line-specific information received by the stage, and the change-specificity of the record updated by the update means when receiving a notification that the subscriber network terminator is connected to the destination subscriber line Notifying the subscriber network termination device of the information, storing the change specific information in the line specific information of the record, deleting the value of the change specific information of the record, and further adding to the line change flag of the record A computer program that functions as takeover means for storing a value indicating that a destination subscriber line is valid.

  According to the present invention, when a subscriber line is changed with respect to an arbitrary subscriber, the setting information used in the subscriber network terminator of the pre-change line is used as the subscriber network terminator of the post-change line. Therefore, the subscriber can use the subscriber line in the same network environment as before the line change even after the line change.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a configuration of a remote setting system 1 and a subscriber network termination device 2 according to an embodiment of the present invention, and a connection diagram of peripheral devices.
The remote setting system 1 shown in FIG. 1 includes four servers: a set value input interface server 11, a subscriber network terminator interface server 12, a service order input interface server 13, and a database server 14.

  The database server 14 adds a record of the information in order to manage line-specific information (such as a network address and a station code of the line) and setting information related to the subscriber network termination device 2 for each subscriber line. It is a database that can be deleted, searched and updated. Hereinafter, “subscriber line” is also simply referred to as “line”.

FIG. 2 shows a setting example of a management table managed by the database server 14. The management table consists of records composed of columns of subscriber identifier, line identifier, status flag, line changing flag, line specific information, change specific information, and subscriber network terminator setting information. Is the primary key.
The subscriber identifier is an identifier that uniquely identifies the subscriber, and the line identifier is an identifier that uniquely identifies the subscriber line. The status flag indicates the status of the subscriber line specified by the subscriber identifier and the line identifier. The line change flag indicates whether or not a line change without changing the line identifier has been performed on the subscriber line specified by the subscriber identifier and the line identifier. The line unique information indicates unique information for the subscriber line and can be set to one or more. The change unique information indicates unique information of the subscriber line that becomes valid after the line change. The subscriber network terminator setting information indicates setting information of the subscriber network terminator 2 and can be set one or more.

  In the figure, subscriber identifiers are uniquely assigned to subscribers such as “user0101,” “user0102,”... The line identifier is uniquely assigned to each subscriber line such as “line0101,” “line0102,”. The status flag takes values of “0: (invalid)”, “1: (valid)”, “2: (temporarily invalid)”, and the record has a status flag of “0” or “2”. The line having the line identifier is in an invalid state, and the setting value cannot be input by the setting value input interface server 11 to be described later, and is remotely set to the apparatus by the subscriber network terminator interface server 12 to be described later. Can not do. The line changing flag takes values of “0: (normal state)”, “1: (currently used line valid)”, and “2: (new line valid)”. Since the line-specific information is simple, only one item is handled. Here, the IPv6 prefix assigned to the subscriber line is stored. The change unique information is line unique information that becomes valid after the line change, and stores an IPv6 prefix applied after the line change. The subscriber network terminator setting information also handles only one item for the sake of simplicity, and “1: (ON)”, “0: (0) of the DHCP (Dynamic Host Configuration Protocol) server function of the subscriber network terminator 2. OFF) ”is stored as setting information.

  As shown in FIG. 1, the set value input interface server 11 includes an HTTP server function unit 11a that realizes an HTTP (Hypertext Transfer Protocol) server function, and is set in the operation terminal 4 of a remote setting operator of a telecommunications carrier. Provides a graphical user interface (GUI) for value input. In order to specify the subscriber network terminator 2 to be set, the remote setting operator displays a subscriber identifier or a line identifier on the GUI shown in FIG. 3, that is, on the subscriber network terminator search screen displayed on the operation terminal 4. Or enter both. The set value input interface server 11 searches the management table in the database server 14 on the condition of the identifier input to the operation terminal 4, displays the current value of the subscriber network termination device setting information of the found record, and creates a new A subscriber network termination device setting screen, which is an input GUI for inputting a value, is displayed on the operation terminal 4 as shown in FIG. When the setting information needs to be changed, the remote setting operator changes the setting on the input GUI screen displayed on the operation terminal 4, presses the setting button, and sets the setting contents to the setting value input interface server 11. Send. The setting value input interface server 11 stores the received setting information in the corresponding record of the management table in the database server 14.

  As shown in FIG. 1, the subscriber network termination device interface server 12 includes an HTTP server function unit 12a that realizes an HTTP server function and an HTTP client function unit 12b that realizes an HTTP client function. Similarly, the subscriber network terminating device 2 also includes an HTTP server function unit 2b that implements an HTTP server function and an HTTP client function unit 2a that implements an HTTP client function. Both the subscriber network termination device interface server 12 and the subscriber network termination device 2 are connected by a subscriber line via the edge router 5 and communicate with each other through an interface using a TCP / IPv6 / HTTP protocol stack. .

  The subscriber network termination device 2 transmits a setting information request to the HTTP server function unit 12a of the subscriber network termination device interface server 12 by using the HTTP client function unit 2a. Upon receiving the setting information request, the subscriber network termination device interface server 12 acquires the IPv6 prefix from the IPv6 address of the request transmission source, searches the line specific information in the management table in the database server 14 using the prefix as a condition, Get configuration information from found records. The subscriber network termination device interface server 12 transmits the acquired setting information to the HTTP server function unit 2b of the subscriber network termination device 2 using the HTTP client function unit 12b. The subscriber network terminating device 2 stores the received setting information in its own nonvolatile memory 2c, and executes an operation according to the setting information. That is, in this embodiment, the DHCP server function is turned on / off according to the setting information.

  When the subscriber network termination device 2 transmits the setting information request periodically by the interval timer of the subscriber network termination device 2 (periodic request), the subscriber network termination device 2 transmits the subscriber network termination. When an immediate transmission request for a setting information request is received from the HTTP client function unit 12b of the device interface server 12 (immediate request), when the subscriber network terminating device 2 in a factory default state is connected to a subscriber line for the first time (initial request) It is three.

Next, the service order input interface server 13 shown in FIG. 1 will be described.
When the contact person in charge of the telecommunications carrier accepts various applications according to the application form from the subscriber, the contents of the accepted application form are input to the service order generation system 3. The service order generation system 3 generates a service order from the input application contents. The service order type is shown in FIG. As shown in the figure, the service order type includes “1: (new line establishment)”, “2: (line abolition)”, “3: (line duplication)”, and “4: (line temporary invalidity)”. is there.

  As shown in FIG. 6, the service order generated by the service order generation system 3 is a CSV file described in the order of the above-mentioned service order type, subscriber identifier, line identifier, and line specific information. The line-specific information can be omitted for service orders of “line abolition” and “line temporary invalid”. As shown in the figure, a plurality of service orders can be entered in one file by separating them with line breaks and describing them on a plurality of lines.

  The service order input interface server 13 includes an FTP function unit 13a that realizes an FTP (File Transfer Protocol) server function, and the service order generation system 3 uploads the generated service order CSV file by FTP. The service order input interface server 13 periodically performs batch processing according to the batch script, reads the service order file uploaded by FTP line by line, performs processing, and is stored in the database server 14 according to the service order type. Manipulate records in the management table.

Next, the operation of the remote setting system 1 will be described.
First, an operation when a line is newly established in the remote setting system 1 will be described.
When the subscriber applies to the telecommunications carrier for the establishment of a new line, the service order generation system 3 newly generates the subscriber identifier of the subscriber and the line identifier of the newly established subscriber line and assigns them to the line. A service order for a new line as shown in FIG. 7 is generated from the line-specific information and uploaded to the service order input interface server 13 by FTP. In the present embodiment, the subscriber identifier is “user0001”, the line identifier of the newly established subscriber line is “line0001”, and the IPv6 prefix “fd81: 2001: 0001 ::” assigned to the line is assigned to the line-specific information. To do.

  The service order input interface server 13 periodically starts a service order processing program and processes the uploaded CSV file in order of oldest time stamp. Here, it is assumed that only the CSV file of the service order shown in FIG. First, the service order input interface server 13 determines that the value of the service order type, which is the first element in the first row of the service order, is “1”, so that the service order is “new line”, Whether a record in which the subscriber identifier is “user0001”, the line identifier is “line0001”, and the status flag is “1: (valid)” or “2: (temporarily invalid)” exists in the management table in the database server 14 Search for. Here, since the line is newly established, there is no corresponding record as a result of the search. Therefore, the service order input interface server 13 newly adds a record for the line to be newly added to the management table in the database server 14. As shown in FIG. 8, the added record stores the subscriber identifier “user0001”, the line identifier “line0001”, and the line specific information “fd81: 2001: 0001 ::” specified in the service order, In the flag, “1” indicating that the line is valid is stored, and “1: (DHCP server function ON)” which is an initial value is stored in the subscriber network termination device setting information.

  In this state, when the subscriber network terminating device 2 in the factory shipment state is connected to a new line laid at the subscriber's home, the subscriber network terminating device 2 is connected to the subscriber network terminating device interface server as shown in FIG. A setting information request is transmitted as an HTTP request to 12 designated URIs (Universal Resource Identifiers) (step S11). The subscriber network terminating device interface server 12 acquires the IPv6 prefix “fd81: 2001: 0001 ::” from the source IPv6 address of the received HTTP request, has the prefix in the line-specific information, and the status flag is “ A record “1: (valid)” is searched from the management table in the database server 14 (step S12), and subscriber network termination device setting information of the found record is acquired (steps S13 and S14). Specifically, from FIG. 8 and FIG. 9, the setting information to be acquired is “1: (DHCP server function ON)”. The subscriber network termination device interface server 12 puts the character string “DHCP = 1” in the body part of the HTTP response, and returns it to the subscriber network termination device 2 that sent the HTTP request (step S15). The subscriber network terminating device 2 that has received the HTTP response determines that the DHCP server function is to be turned on from the character string “DHCP = 1” in the body part, and changes the setting in its own nonvolatile memory 2c. Thus, the setting of the subscriber network termination device 2 becomes effective, and the subscriber can connect a personal computer, a set-top box, etc. to the subscriber network termination device 2 and make an Internet connection through the subscriber line.

Next, a procedure for changing the setting of the subscriber network terminating device 2 in the remote setting system 1 will be described.
As described above, after establishing the new line shown in FIG. 9 and connecting the subscriber network terminator 2, the setting of the subscriber network terminator 2 is changed in accordance with the change in the contents of the service provided to the subscriber (DHCP). Assume that the server function needs to be turned off. At this time, as shown in FIG. 10, the telecommunications carrier uses the operation terminal 4 to input the setting information to be changed by the GUI shown in FIGS. 3 and 4 provided by the setting value input interface server 11. (Step S21). The set value input interface server 11 changes the subscriber network termination device setting information of the record to be changed in the management table stored in the database server 14 to the input value, that is, “0: (DHCP server function OFF)”. At the same time (step S22), a "configuration information request immediate transmission request" is transmitted as an HTTP request to the subscriber network termination device 2 to be changed via the subscriber network termination device interface server 12 (step S23). Upon receiving the setting information request immediate transmission request, the subscriber network terminating device 2 transmits the setting information request to the subscriber network terminating device interface server 12 as in FIG. 9 described above (step S24), and the setting information (DHCP = 0) is received and its own setting is changed (step S25).

Next, a procedure for taking over line management information in the remote setting system 1 will be described.
FIGS. 11 and 12 are process flows of the line management information takeover procedure in the remote setting system 1.
As subscribers move, they will stop using the current line and use the new line. In the conventional line management method, since the setting information of the existing line cannot be transferred to the moving destination line, the setting information of the subscriber network terminating device 2 by the above-mentioned telecommunications carrier is the subscriber network terminating device of the moving destination. 2 is not reflected. Hereinafter, a procedure for taking over the line management information when changing the line using the remote setting system 1 of the present invention will be described.

  When a subscriber line is changed due to moving or the like, the line identifier may or may not be changed on the line before moving and after moving. The case where the line identifier does not change is due to, for example, moving in the same building (moving from room 101 in the apartment to room 403, etc.) or an interface failure of the edge router 5 in which the subscriber line is accommodated. This is a case of a line change where there is no movement of the super short distance or location, such as a change in the accommodation interface. In such a case, there is a case where only the line specific information (IPv6 prefix in this embodiment) is changed without changing the line identifier. In these cases, there is no change in the subscriber identifier and the line identifier which are the main keys of the management table before and after the line change.

  Now, since the interface of the edge router 5 of the telecommunications carrier that accommodates the subscriber line has failed, the line is connected to another interface of the same edge router 5. In this case, since the laying position of the subscriber line is not changed, the line identifier of the line is not changed, but the IPv6 prefix which is the line specific information is changed because the interface of the edge router 5 is changed. Here, it is assumed that the line before the change is a line newly established by the procedure of FIG. 9 described above, and the values currently stored in the management table record of the database server 14 are as shown in FIG. That is, the subscriber identifier is “user0001”, the line identifier is “line0001”, the status flag is “1: (valid)”, the line changing flag is “0: (normal state)”, and the line specific information is “fd81: 2001” : 0201 :: ", the change specific information is a null value, and the subscriber network termination device setting information is" 1: (DHCP server function ON) ".

The subscriber submits the application form to the contact person of the telecommunications carrier, and the person in charge inputs the subscriber identifier of the subscriber who applied for it and the contents of the application to the service order generation system 3, and the required service order is entered. The remote setting system 1 is instructed to transmit.
Specifically, the telecommunications carrier inputs a request for line change, a subscriber identifier of the line, and an IPv6 prefix of the changed line to the service order generation system 3. The service order generation system 3 does not generate a new line identifier because the line location is not changed. Therefore, as shown in FIG. 14, as a request for generating another line, the service order type “3: (line duplication)”, the subscriber identifier “user0001”, the same line identifier “line0001” as the currently used line, and the changed IPv6 A CSV file of the line duplication service order (SO) described in the order of the line specific information “fd81: 2001: 0201 ::” of the prefix value is generated. The service order generation system 3 uploads the created file to the service order input interface server 13 of the remote setting system 1 by FTP.

  In FIG. 11, the service order input interface server 13 periodically executes a service order processing program to process the service order file uploaded from the service order generation system 3. That is, the execution unit (not shown) of the service order processing program in the service order input interface server 13 opens the uploaded CSV file and reads the service order line by line, and performs processing according to the service order type. The service order input interface server 13 recognizes that the service order type is “3: (line duplication)”, which is the first element in the line read from the CSV file (FIG. 14), and is a service order for line duplication ( Step S110: YES).

  As the process of the line duplication service order, first, the service order input interface server 13 acquires the record of the line currently in use, in order to obtain the record of the management table in the database server 14 by the subscriber indicated by the second element of the service order. A record is searched for using the identifier “user0001” and the status flag “1: (valid)” as conditions, and the line identifier is acquired from the found record (step S120). The line identifier “line0001” of the record found as a result of the search (FIG. 13) is the same as the line identifier described in the service order (step S130: =), and the primary key is duplicated. FIG. 12) The line record after the change cannot be duplicated. Therefore, the service order input interface server 13 records the line in use found in step S120, that is, the subscriber identifier and line input in step S110, in order to indicate that the line change is not changing. “1: (currently used line is valid)” is stored in the line changing flag of the record in the management table having the identifier (step S140). Further, the service order input interface server 13 stores the IPv6 prefix “fd81: 2001: 0201 ::” described in the service order in the change unique information of the record of the line in use (step S150). From the above, the record of the management table in the database server 14 is as shown in FIG.

  Thereafter, the accommodation interface of the edge router 5 is changed, the subscriber network termination device 2 is initialized at the subscriber's home, and is changed to the changed line (IPv6 prefix “fd81: 2001: 0201 ::”) at the factory shipment. When the connection is established, a setting information request for initial setting is transmitted from the subscriber network terminating device 2. Upon receiving the setting information request (step S160: YES), the subscriber network terminating device interface server 12 acquires the setting information from the management table in the database server 14, so that the IPv6 prefix “fd81: 2001: [0201 ::] is used to search for line-specific information, but there is no record having the prefix. Therefore, when the change unique information is searched again using the same prefix, the record shown in FIG. 15 is found. From this, the subscriber network termination device interface server 12 determines that the interface change of the edge router 5 has been completed, and uses the IPv6 prefix “fd81: 2001: 0201 ::” stored in the change specific information of the found record. , The Null value (or a value indicating a blank) is stored in the change specific information. Furthermore, “2: (new line valid)” is stored in the line changing flag of the record (step S170). As a result, the record in the management table of the database server 14 is as shown in FIG.

  The subscriber network termination device interface server 12 acquires the subscriber network termination device setting information “1: (DHCP server function ON)” from the record of the management table changed in step S170, and receives the setting information received in step S160. The request is transmitted to the subscriber network termination device 2 that is the transmission source (step S180). That is, the same setting information “1: (DHCP server function ON)” as before changing the interface with the edge router 5 is set in the subscriber network terminating device 2 by the same process as shown in FIG. The subscriber can use the subscriber network terminating device 2 with the same settings as before the connection change.

  Thereafter, a service order for invalidating the pre-change line is uploaded from the service order generation system 3 to the service order input interface server 13 (step S190: YES). In the CSV file of the service order, as shown in FIG. 17, the service order type “2: (line abolition)”, the subscriber identifier “user0001”, and the line identifier “line0001” are described in this order. Note that, in the service order for changing line invalidation, line-specific information to be invalidated may be set.

  In the service order processing program of the service order input interface server 13, since the service order with the service order type "2: (line abandoned)" is input, the subscriber identifier "user0001" specified in the CSV file, An attempt is made to set the status flag of the record in the management table found as a result of the search using the line identifier “line0001” as a key to “0: (invalid)”, but the line change flag of the record is “2: (new line valid) ) ”, The value of the status flag is not changed, and“ 0: (normal status) ”is stored in the line changing flag. FIG. 18 shows a management table after the line abandonment service order processing.

  If the line order information to be invalidated is included in the service order for invalidating the changed line, the service order processing program of the service order input interface server 13 reads the subscriber identifier, line identifier, And if a record in the management table in which the line-specific information to be invalidated is set and the line changing flag is “2: (new line valid)”, the status flag value is not changed and the line is changed. “0: (normal state)” is stored in the changing flag, and a Null value or a value indicating a blank is stored in the column of the line specific information in which the line specific information to be invalidated is set (step S200). .

  As described above, in the case of a line change in which the line identifier is not changed, it is possible to take over the setting information of the line before change to the subscriber termination device of the line after change.

  Next, a case will be described in which a subscriber stops using a line that is currently in use and moves to use a new line at the new location. In the conventional line management method, as in the case where the line identifier is not changed, the setting information of the existing line is not carried over to the new line of the new address, and therefore the setting information of the subscriber network terminating device 2 by the telecommunications carrier. Is not reflected in the subscriber network terminating device 2 of the new address. In the following, a description will be given of handing over setting information to a newly established line by the remote setting system 1. The lines to be used are lines newly created and changed according to the procedure shown in FIGS. 9 and 10 described above, and the values currently stored in the management table record of the database server 14 are as shown in FIG. And That is, the subscriber identifier is “user0001”, the line identifier is “line0001”, the status flag is “1: (valid)”, the line changing flag is “0: (normal state)”, and the line specific information is “fd81: 2001” : 0001 :: ”, the change specific information is a null value, and the subscriber network termination device setting information is“ 0: (DHCP server function OFF) ”.

The subscriber submits the application form to the contact person of the telecommunications carrier, and the person in charge inputs the subscriber identifier of the subscriber who applied for it and the contents of the application to the service order generation system 3, and the required service order is entered. Request to transmit to the remote setting system 1.
The service order generation system 3 is a line duplication service order for newly setting up the moving destination line and copying the setting information of the currently used line to the moving destination line because the input content is a change of the line accompanying the moving. Create Therefore, first, a line identifier of the moving destination line is generated. Here, the line identifier of the moving destination line is “line0102”. Further, the service order generation system 3 acquires an IPv6 prefix assigned to the newly established line from the system that manages the edge router 5. As shown in FIG. 19, the service order generation system 3 indicates the service order type “3: (line duplication)”, the subscriber identifier “user0001”, the line identifier “line0102”, and the assigned IPv6 prefix as shown in FIG. A CSV-format line duplication service order file described in the order of line-specific information “fd81: 2001: 0102 ::” is created. The service order generation system 3 uploads the created file to the service order input interface server 13 of the remote setting system 1 by FTP.

  In FIG. 11, the generated CSV file is processed by the execution unit of the service order processing program of the service order input interface server 13 as in the above-described case where the line identifier is not changed. That is, the service order input interface server 13 periodically executes the service order processing program to process the uploaded service order file. The execution unit (not shown) of the service order processing program in the service order input interface server 13 opens the uploaded CSV file and reads the service order line by line, and performs processing according to the service order type. The service order input interface server 13 recognizes that the service order type is “3: (line duplication)”, which is the first element in the line read from the CSV file (FIG. 19), so that the service order is a line duplication service order ( Step S110: YES).

  As the process of the line duplication service order, first, the service order input interface server 13 acquires the record of the line currently in use, in order to obtain the record of the management table in the database server 14 by the subscriber indicated by the second element of the service order. Records are searched for using the identifier “user0001” and the status flag “1: (valid)” as conditions. Under this condition, a record of the currently used line as shown in FIG. 10 is found, and the service order input interface server 13 stores the line identifier “line0001” of the record in the main storage device (step S120).

  The service order input interface server 13 determines whether or not the line identifier of the record (FIG. 10) found as a result of the search is the same as the line identifier described in the received service order (step S130). If it is determined that they are not the same (step S130: ≠), the service order input interface server 13 then, as shown in the flow of FIG. 12, the subscriber identifier “user0001” of the second element of the service order and 3 A new record is created in the management table in the database server 14 with the line identifier “line0102” of the second element as the primary key, the status flag “1: (valid)”, and the line changing flag “0: (normal status) ")" Is stored in the line-specific information, "fd81: 2001: 0102 ::" (IPv6 prefix), which is the fourth element of the service order (step S310). However, the subscriber network termination device setting information is a Null value. As a result, the record in the management table of the database server 14 is as shown in FIG.

  Thereafter, when the subscriber network terminating device 2 in the factory-shipped state is connected to the moving destination line, the subscriber network terminating device interface server 12 sends a setting information request for initial setting from the subscriber network terminating device 2. Is received (step S320: YES). Since the subscriber network terminating device interface server 12 acquires the setting information from the management table in the database server 14, the line specific information is the IPv6 prefix “fd81: 2001: 0102 ::” of the transmission source line of the setting information request. There is a search for a record in the management table having a status flag of “1: (valid)”. However, since the setting information of the found moving destination line record (FIG. 20, second line) is a Null value, the setting information cannot be acquired. Therefore, the subscriber network terminating device interface server 12 again checks the management table in the database server 14 under the condition of the subscriber identifier “user0001” of the record found by this search and the status flag “1: (valid)”. Search for. By this search, records of both the moving destination line and the currently used line are found (FIG. 20, first line, second line).

  The subscriber network terminator interface server 12 acquires setting information from the subscriber network terminator setting information in the found in-use line record (step S330). The subscriber network termination device interface server 12 transmits the setting information acquired in step S330 to the subscriber network termination device 2 that is the transmission source of the setting information request by the same processing as that shown in FIG. 9 (step S340). As a result, the same setting information “0: (DHCP server function OFF)” as before the move is set in the subscriber network terminating device 2, and the subscriber sets the subscriber network terminating device 2 with the same settings as before the move on the new line. Can be used. Also, the subscriber network termination device interface server 12 stores the subscriber network termination device setting information acquired in step S330 in the subscriber network termination device setting information in the moving destination line record (step S350). By this processing, the database table becomes as shown in FIG.

  The service order generation system 3 generates a service order for invalidating the line used before moving after the start of use of the moving destination line. As shown in FIG. 22, the service order generation system 3 includes the service order type “2: (line abandoned)”, the subscriber identifier “user0001” of the moved subscriber, and the line identifier “line0001” of the old line before moving. A CSV file of the line invalidation service order described in the order is generated and uploaded to the service order input interface server 13 (step S360: YES).

  In the service order processing program of the service order input interface server 13, since the service order with the service order type "2: (line abandoned)" is input, the subscriber identifier "user0001" specified in the CSV file, The management table in the database server 14 is searched on condition of the line identifier “line0001” and the status flag “1: (valid)”, and the status flag of the record found as a result of the search is set to “0: (invalid)”. Change (step S370).

  From the above, the management table in the database server 14 is as shown in FIG. 23, and the line used before moving is logically deleted. Thereafter, the telecommunications carrier cannot change the setting of the subscriber network terminating device 2 of the line before moving, and the subscriber network terminating device 2 connected to the line before moving requests a setting information request. However, the setting information is not transmitted.

  As described above, the setting of the subscriber network terminating device 2 of the line before moving is changed after the “duplicate line” service order is inputted and before the subscriber network terminating device 2 is connected to the moving destination line. In this case, the setting contents are transferred to the subscriber network terminating device 2 connected to the moving destination line.

  In the flow of FIG. 12, the timing at which the subscriber network terminator setting information of the currently used line is copied to the moving destination line is the timing at which the subscriber network terminating device 2 is connected to the moving destination line. It may be the timing when the “line replication” service order is distributed. In this case, the processing of step S320 and step S340 in FIG. 12 is not executed, and in step S330, the line identifier of the currently used line stored in the main storage device and the subscriber identifier which is the second element of the service order Then, the subscriber network termination device setting information is acquired from the record specified by searching the management table with the status flag indicating validity, and stored in the newly created record in step S350. In this case, as shown in FIG. 24, there are two records with the status flag “1: (valid)” for the same subscriber identifier, and different line identifiers and line-specific information are stored in the management table. The same subscriber network terminator setting information is stored. In this state, the same setting information can be transmitted regardless of whether the setting information request is transmitted from either the currently used line or the moving destination line. Then, when the subscriber moves, a new line is laid in the new house, and the subscriber network terminating device 2 in the factory shipment state is connected to the line, the moving destination line is processed by the same process as shown in FIG. The same setting information as that of the pre-moving line is transmitted to the subscriber network terminating device 2.

  In addition, as a line change in a pattern different from the above-described embodiment, the subscriber changes the line as they move. However, since the interval between withdrawal of the old house and moving into the new house is long, the line currently in use is temporarily changed. There is a method in which a line is newly established after the use start date of the moving destination line is determined after being disabled. In this case, if the line is invalidated by the line abolition service order, it is not possible to distinguish whether it is really invalid and is temporarily invalidated or temporarily invalidated due to the move. The line is put into a “temporarily invalid” state by the service order. Here, the values stored in the management table in the initial state are assumed as shown in FIG.

  Assume that a subscriber applies to a telecommunications carrier to change the line as they move. The service order generation system 3 generates a service order for changing the line. When the use stop date of the currently used line desired by the subscriber and the use start date of the moving destination line are separated by a predetermined number of days or more, When the determination is made, a service order for temporarily invalidating the line is generated in order to temporarily invalidate the currently used line. That is, the CSV file generated by the service order generation system 3 describes “4: (line temporary invalid)” as the service order type as shown in FIG.

  The service order input interface server 13 processes the uploaded CSV file. Since the service order type indicated by the CSV file is “4: (line temporary invalid)”, in the management table in the database server 14, “2: (temporarily invalid)” is stored in the status flag of the record having the subscriber identifier and the line identifier specified by the service order, and is updated as shown in FIG. As a result, the currently used line is temporarily disabled, and the setting change by the telecommunications carrier and the setting information transmission by the setting information request of the subscriber network terminating device 2 cannot be performed. However, the status flag “0: (invalid)” It is clearly distinguished.

  After that, when the day when the subscriber enters the new house approaches, the service order generation system 3 uses the information on the temporarily disabled line in the moving destination line as in the flow shown in steps S110 to S130 in FIG. 11 and FIG. Is duplicated, a line duplication service order as shown in FIG. 27 is generated. In the CSV file, a service order type in which “3: (line duplication)” is set, a subscriber identifier, a newly generated line identifier, and an IPv6 prefix assigned to the moving destination line are described in order. In step S120 of FIG. 11, the service order input interface server 13 searches the management table with the subscriber identifier specified by the service order and the status flag “2: (temporarily invalid)”, and the line identifier of the found record Are stored in the main memory.

  Steps S310 to S320 in FIG. 12 are similar processes. That is, a new record is created in the management table in the database server 14 using the subscriber identifier and the line identifier in the service order as primary keys, the status flag is set to “1: (valid)”, and the line changing flag is set to “0: (Normal state) ", the IPv6 prefix in the service order is stored in the line-specific information, and the subscriber network termination device setting information is set to a null value. As a result, the management table is updated as shown in FIG. 28, and the setting information request is received when the subscriber network terminating device 2 in the factory shipment state is connected to the moving destination line. In step S330, when the line-specific information is the IPv6 prefix of the transmission line of the setting information request and the status flag is “1: (valid)” in the management table record, the setting information is a null value. Further, the management table in the database server 14 is searched again under the condition of the subscriber identifier of the record found by the search and the condition flag “2: (temporarily invalid)”. The subscriber network terminator interface server 12 transmits the setting information indicated by the subscriber network terminator setting information in the record of the used line found by this search to the subscriber network terminator 2, and the subscriber network The terminating device setting information is stored in the subscriber network terminating device setting information in the moving destination line record. Thereby, the subscriber network termination device 2 of the moving destination line can be used in the same environment as before the moving.

  After that, in step S370 in FIG. 12, the setting value input interface server 11 that has received the service abolition service order specifies the subscriber identifier, the line identifier, and the status flag “2 :() specified in the service order of the CSV file. The status flag of the record of the management table found as a result of the search under the condition “temporarily invalidated” is changed to “0: (invalid)”, and the management table is updated as shown in FIG.

  The set value input interface server 11, the subscriber network terminator interface server 12, the service order input interface server 13 and the database server 14, the subscriber network terminator 2, the service order generation system 3, and the remote setting system 1 described above, The operation terminal 4 has a computer system inside. And the set value input interface server 11, the subscriber network terminator interface server 12, the service order input interface server 13 and the database server 14, the subscriber network terminator 2, the service order generation system 3, and the operation of the remote setting system 1 The operation process of the terminal 4 is stored in a computer-readable recording medium in the form of a program, and the above-described processing is performed by the computer system reading and executing this program. The computer system here includes a CPU, various memories, an OS, and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

1 is a configuration diagram of a remote setting system and a subscriber network termination device according to an embodiment of the present invention and a connection diagram of peripheral devices. It is an example of a management table setting according to the embodiment. It is an example of a subscriber network termination device search screen according to the embodiment. It is an example of a subscriber network termination device setting screen according to the embodiment. It is a figure which shows a response | compatibility with the value on a system in the service order classification by the embodiment. It is a description example of a service order according to the embodiment. It is an example of a line new service order according to the embodiment. It is the content of the management table after the service order process of FIG. It is a figure which shows the operation | movement procedure at the time of the line new installation by the embodiment. It is a figure which shows the operation | movement procedure at the time of the setting change by the embodiment. It is a flowchart of line management information takeover according to the embodiment. It is a flowchart of line management information takeover according to the embodiment. It is an initial state of the management table according to the embodiment. It is an example of a line replication service order according to the embodiment. It is the content of the management table after the service order process of FIG. FIG. 15 shows the contents of the management table after the subscriber network terminator is connected. It is an example of a line abolition service order according to the embodiment. It is the content of the management table after the service order process of FIG. It is an example of a line replication service order according to the embodiment. It is the content of the management table after the service order process of FIG. FIG. 20 shows the contents of the management table after the subscriber network termination device is connected. It is an example of a line abolition service order according to the embodiment. It is the content of the management table after the service order process of FIG. It is the content of the management table after the service order process of FIG. It is an example of a circuit temporary invalid service order according to the embodiment. It is the content of the management table after the service order process of FIG. It is an example of a line replication service order according to the embodiment. It is the content of the management table after the service order process of FIG. FIG. 28 shows the contents of the management table after the subscriber network termination device is connected. It is the schematic of the conventional remote setting system. It is an example of the management table in the conventional subscriber network termination | terminus apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Remote setting system 11 ... Setting value input interface server 12 ... Subscriber network termination device interface server 13 ... Service order input interface server 14 ... Database server 2 ... Subscriber network termination device 3 ... Service order generation system 4 ... Operation terminal

Claims (6)

Remote setting system for remotely setting a subscriber network termination device connected to a subscriber line and transferring the settings of the subscriber network termination device before moving the subscriber line to the subscriber network termination device after moving the subscriber line Because
A subscriber identifier that uniquely identifies the subscriber, a line identifier that uniquely identifies the subscriber line, a status flag that indicates whether the subscriber line is valid, and a line change that indicates whether a line change is in progress without changing the line identifier. From the record including the medium flag, the line specific information indicating the information specific to the subscriber line, the change specific information indicating the line specific information to be set for the moved subscriber line, and the setting information of the subscriber network termination device Storage means for storing management data
A line generation request input for receiving an input of a subscriber identifier of a subscriber who moves a subscriber line, a line identifier of a destination subscriber line, line unique information of the destination subscriber line, and another line generation request Means,
A line that retrieves the management data based on the subscriber identifier received by the line generation request input means and a status flag having a value indicating that the subscriber line is valid, and acquires the line identifier from the specified record Acquisition means;
A comparison means for comparing the line identifier acquired by the line acquisition means with the line identifier received by the line generation request input means and determining whether they are the same;
When it is determined that the comparison means are the same, the line generation request input means retrieves the management data by the subscriber identifier and the line identifier received, and the current record is changed to the line change flag of the specified record. An update means for storing a value indicating that the subscriber line in use is valid, and storing the line specific information received by the line generation request input means in the change specific information of the record;
When the notification that the subscriber network terminator is connected to the subscriber line of the destination is received, the change specific information of the record updated by the updating means is notified to the subscriber network terminator and The change unique information is stored in the line unique information of the record, the value of the change unique information in the record is deleted, and a value indicating that the destination subscriber line is valid is added to the line change flag of the record. A takeover means for storing;
A remote setting system comprising: A line abandonment request input means for receiving a subscriber identifier and a line identifier of a subscriber line before moving and a line abolition request;
A line that retrieves the management data based on the subscriber identifier and line identification information received by the line abandonment request input means, and stores a value indicating that the line is not being changed in the line change in progress flag of the specified record Abolition setting means,
The remote setting system according to claim 1, further comprising: When it is determined that the comparison means are not the same, the subscriber identifier, the line identifier and the line unique information received by the line generation request input means, and a status flag of a value indicating that the subscriber line is valid Further comprising an adding means for adding a record in which management information is set to the management data,
When the handover means receives a notification that the subscriber network terminator is connected to the destination subscriber line, the takeover means displays the setting information in the record specified by the line acquisition means as the subscriber network terminator. And storing in the setting information of the record added by the adding means,
The remote setting system according to claim 1. A line abolition request input means for receiving a subscriber identifier and a line identifier of the subscriber line before the change and a line abolition request;
Line abandonment setting means for retrieving the management data from the subscriber identifier and line identification information received by the line abolition request input means, and storing a value indicating invalidity in the status flag of the specified record;
The remote setting system according to claim 3, further comprising: Remote setting system for remotely setting a subscriber network termination device connected to a subscriber line and transferring the settings of the subscriber network termination device before moving the subscriber line to the subscriber network termination device after moving the subscriber line Line management method used for
The remote setting system is changing the line in which the subscriber identifier that uniquely identifies the subscriber, the line identifier that uniquely identifies the subscriber line, the status flag that indicates whether the subscriber line is valid, and the line identifier does not change A line change flag indicating whether or not, a line specific information indicating information unique to the subscriber line, a change specific information indicating the line specific information to be set for the moved subscriber line, and the setting of the subscriber network termination device Comprising storage means for storing management data comprising records including information;
A line generation request input for receiving an input of a subscriber identifier of a subscriber who moves a subscriber line, a line identifier of a destination subscriber line, line unique information of the destination subscriber line, and another line generation request Process,
A line that retrieves the management data from the subscriber identifier received in the line generation request input process and a status flag having a value indicating that the subscriber line is valid, and acquires the line identifier from the specified record Acquisition process,
A comparison step of comparing the line identifier acquired in the line acquisition step with the line identifier received in the line generation request input step to determine whether or not they are the same;
When it is determined that they are the same in the comparison process, the management data is searched by the subscriber identifier and the line identifier received in the line generation request input process, and the line change flag of the specified record is set, An update process for storing a value indicating that the currently used subscriber line is valid, and storing the line specific information received in the line generation request input process in the change specific information of the record,
When the notification that the subscriber network termination device is connected to the destination subscriber line is received, the change specific information of the record updated in the update process is notified to the subscriber network termination device, and The change unique information is stored in the line unique information of the record, the value of the change unique information in the record is deleted, and a value indicating that the destination subscriber line is valid is added to the line change flag of the record. The takeover process of storing,
A circuit management method comprising: A computer used as a remote setting system for remotely setting a subscriber network termination device and transferring the settings of the subscriber network termination device before the line movement to the subscriber network termination device after the line movement;
A subscriber identifier that uniquely identifies the subscriber, a line identifier that uniquely identifies the subscriber line, a status flag that indicates whether the subscriber line is valid, and a line change that indicates whether a line change is in progress without changing the line identifier. From the record including the medium flag, the line specific information indicating the information specific to the subscriber line, the change specific information indicating the line specific information to be set for the moved subscriber line, and the setting information of the subscriber network termination device Storage means for storing management data,
A line generation request input for receiving an input of a subscriber identifier of a subscriber who moves a subscriber line, a line identifier of a destination subscriber line, line unique information of the destination subscriber line, and another line generation request means,
A line that retrieves the management data based on the subscriber identifier received by the line generation request input means and a status flag having a value indicating that the subscriber line is valid, and acquires the line identifier from the specified record Acquisition means,
A comparison means for comparing the line identifier acquired by the line acquisition means with the line identifier received by the line generation request input means and determining whether or not they are the same;
When it is determined that the comparison means are the same, the line generation request input means retrieves the management data by the subscriber identifier and the line identifier received, and the current record is changed to the line change flag of the specified record. Updating means for storing a value indicating that the subscriber line in use is valid, and storing the line specific information received by the line generation request input means in the change specific information of the record;
When the notification that the subscriber network terminator is connected to the subscriber line of the destination is received, the change specific information of the record updated by the updating means is notified to the subscriber network terminator and The change unique information is stored in the line unique information of the record, the value of the change unique information in the record is deleted, and a value indicating that the destination subscriber line is valid is added to the line change flag of the record. Takeover means to store,
A computer program that functions as a computer program.

Images