JP2014187581A - Setting value extraction device, setting value extraction method and setting value extraction program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extract a setting value required for operation management of a network from an apparatus setting file of a communication apparatus even without knowledge associated with the communication apparatus.SOLUTION: An apparatus setting file selection unit 110 selects an apparatus setting file 191 from an input folder 101. A model identifier extraction unit 120 extracts a model identifier of a communication apparatus from the apparatus setting file 191. A filter name selection unit 130 selects a filter name of an extraction filter 193 corresponding to the model identifier from an apparatus management table 192. An extraction filter execution unit 140 executes the extraction filter 193 identified by the selected filter name so as to extract a required setting value from the apparatus setting file 191. An operation management sheet generation unit 150 generates an operation management sheet 194 showing the setting value extracted from the apparatus setting file 191.

Description

  The present invention relates to, for example, a setting value extraction apparatus, a setting value extraction method, and a setting value extraction program for extracting a setting value set in a communication device from a device setting file of the communication device.

Conventionally, a network administrator refers to a device setting file output from a communication device (switch, router, etc.) used in the network, and extracts a setting value of the communication device from the device setting file.
Then, the network administrator generates an operation management sheet listing the setting values extracted from the device setting file, and performs network operation management using the generated operation management sheet.

However, it is difficult to extract all setting values necessary for operation management from all device setting files for the following reasons.
(1) There are many device setting files.
(2) The number of setting values to be extracted from the device setting file is large.
(3) Unless the engineer has knowledge about the communication device, the set value to be extracted cannot be determined.
(4) The description format of the device setting file differs depending on the manufacturer or model of the communication device.

JP 2005-94057 A

  An object of the present invention is, for example, to be able to extract necessary setting values from a device setting file without knowledge of communication devices.

The set value extraction apparatus of the present invention includes:
A device setting file that stores a device setting file that includes a model identifier representing the type of the target device and one or more setting values set in the target device for each target device of one or more target devices that are management targets A storage unit;
An extraction program storage unit for storing one or more extraction programs for extracting setting values to be extracted from at least one of the device setting files stored in the device setting file storage unit;
A management table storage unit that stores a management table that associates one or more model identifiers with one or more program names;
A device setting file selection unit for selecting one device setting file as a selection file from the device setting file storage unit;
A model identifier extracting unit that extracts a model identifier included in the selected file as an extracted model identifier from the selected file selected by the device setting file selecting unit;
A program name selection unit that selects a program name associated with the same model identifier as the extracted model identifier extracted by the model identifier extraction unit from the management table stored in the management table storage unit; ,
An extraction program selection unit for selecting, as a selection program, an extraction program identified by the selected program name selected by the program name selection unit from the extraction program storage unit;
An extraction program execution unit that executes the selection program selected by the extraction program selection unit.

  The setting value extraction apparatus includes a management file generation unit that generates a management file in which one or more setting values extracted from the selection file are set by executing the selection program.

Each device setting file includes a setting value and an item name related to the setting value in association with each setting value.
Each extraction program extracts a setting value associated with an item name to be extracted from a device setting file to be processed among one or more device setting files stored in the device setting file storage unit. It is a program that is extracted as a target set value.

The first device setting file among the device setting files includes one or more setting row blocks including a setting row that associates the setting value to be extracted with the item name to be extracted, and the one or more settings. One or more landmark symbols that are respective landmarks of the row block.
The first extraction program among the extraction programs is a setting row block for each setting row block of the one or more setting row blocks based on the one or more landmark symbols included in the first device setting file. The program for extracting the set value of the extraction target included in.

The set value extraction method of the present invention includes a device setting file storage unit, an extraction program storage unit, a management table storage unit, a device setting file selection unit, a model identifier extraction unit, a program name selection unit, and an extraction program selection. And a set value extraction device comprising an extraction program execution unit.
The device setting file storage unit includes, for each target device of one or more target devices that are management targets, a device setting file that includes a model identifier of the target device and one or more setting values set in the target device. It is a memory | storage part to memorize | store.
The extraction program storage unit is a storage unit that stores one or more extraction programs for extracting setting values to be extracted from at least one device setting file stored in the device setting file storage unit.
The management table storage unit is a storage unit that stores a management table that associates one or more model identifiers with one or more program names.
The device setting file selection unit selects one device setting file as a selection file from the device setting file storage unit,
The model identifier extraction unit extracts a model identifier included in the selection file as an extraction model identifier from the selection file selected by the device setting file selection unit,
The program name selection unit uses a program name associated with the same model identifier as the extracted model identifier extracted by the model identifier extraction unit from the management table stored in the management table storage unit as a selected program name Selected,
The extraction program selection unit selects, as a selection program, an extraction program identified by the selected program name selected by the program name selection unit from the extraction program storage unit,
The extraction program execution unit executes the selection program selected by the extraction program selection unit.

  The set value extraction program of the present invention causes a computer to function as the set value extraction apparatus.

  According to the present invention, for example, a necessary setting value can be extracted from a device setting file without knowledge about a communication device (an example of a target device).

2 is a functional configuration diagram of an operation management sheet generation device 100 according to Embodiment 1. FIG. 4 is a flowchart illustrating an operation management sheet generation process of the operation management sheet generation apparatus 100 according to the first embodiment. 6 is a diagram illustrating an example of a device setting file 191 according to Embodiment 1. FIG. 6 is a diagram illustrating an example of a manufacturer name list 181 according to Embodiment 1. FIG. 6 is a diagram illustrating an example of a model item name table 182 according to Embodiment 1. FIG. 6 is a diagram illustrating an example of a device management table 192 according to Embodiment 1. FIG. 6 is a diagram illustrating an example of an extraction list 141 according to Embodiment 1. FIG. 3 is a flowchart illustrating an example of filter processing of an extraction filter 193 according to Embodiment 1. 2 is a diagram illustrating an example of a hardware configuration of an operation management sheet generation device 100 according to Embodiment 1. FIG.

Embodiment 1 FIG.
A description will be given of a mode in which setting values necessary for network operation management can be extracted from a device setting file of a communication device without knowledge about the communication device.
However, the first embodiment may be applied to devices other than communication devices.

FIG. 1 is a functional configuration diagram of the operation management sheet generating apparatus 100 according to the first embodiment.
A functional configuration of the operation management sheet generating apparatus 100 according to the first embodiment will be described with reference to FIG.

  The operation management sheet generation apparatus 100 (an example of a setting value extraction apparatus) is a computer that generates an operation management sheet 194 for managing communication devices such as switches and routers.

The operation management sheet generation apparatus 100 includes a device setting file selection unit 110, a model identifier extraction unit 120, a filter name selection unit 130, an extraction filter execution unit 140, and an operation management sheet generation unit 150.
The operation management sheet generation apparatus 100 includes an input folder 101, a filter folder 102, an output folder 103, and a device storage unit 190.

The input folder 101 (an example of a device setting file storage unit) is a storage unit that stores one or more device setting files 191.
The device setting file 191 is a file that exists for each communication device, and includes one or more setting values set for the communication device. For example, the device setting file 191 is a file output from a communication device.

The filter folder 102 (an example of an extraction program storage unit) is a storage unit that stores one or more extraction filters 193.
The extraction filter 193 is a program (also referred to as a module or a library) in which an extraction algorithm for extracting setting values from the device setting file 191 is described.
The extraction filter 193 exists for each type (format) of the description format of the device setting file 191, and the extraction algorithm differs for each extraction filter 193.

The output folder 103 is a storage unit that stores one or more operation management sheets 194.
The operation management sheet 194 is a file that exists for each communication device, and indicates the setting value extracted from the device setting file 191 of the communication device and the setting item of the communication device in which the setting value is set in association with each other. However, the operation management sheet 194 may be a file indicating setting values of a plurality of communication devices.

The device storage unit 190 (an example of a management table storage unit) is a storage unit that stores data used in the operation management sheet generation device 100. For example, the device storage unit 190 stores a device management table 192, a manufacturer name list 181 and a model item name table 182.
The device management table 192 is a table that associates a model identifier (also referred to as a model name or model field number) indicating the type of communication device with the filter name of the extraction filter 193.
For example, the type of communication device is information indicating the function type of the communication device (switch, router, etc.), the number of ports, the model or version.
The manufacturer name list 181 is data indicating one or more manufacturer names of communication devices.
The model item name table 182 is a table that associates the manufacturer name of the communication device with the item name (model item name) of the model identifier.

  The device setting file selection unit 110 selects device setting files 191 from the input folder 101 one by one.

  The model identifier extraction unit 120 extracts the model identifier of the communication device from the selected device setting file 191. Hereinafter, the extracted model identifier is referred to as “extracted model identifier 121”.

  The filter name selection unit 130 (an example of a program name selection unit) selects a filter name associated with the extraction model identifier 121 from among the filter names set in the device management table 192. Hereinafter, the selected filter name is referred to as “selected filter name 131”.

The extraction filter execution unit 140 (an example of an extraction program selection unit and an extraction program execution unit) selects the extraction filter 193 identified by the selection filter name 131 from the filter folder 102, and executes the selected extraction filter 193.
By executing the extraction filter 193, an extraction list 141 indicating the setting values extracted from the device setting file 191 is generated.

  The operation management sheet generation unit 150 (an example of a management file generation unit) generates an operation management sheet 194 in which setting values shown in the extraction list 141 are set.

FIG. 2 is a flowchart showing operation management sheet generation processing of the operation management sheet generation apparatus 100 according to the first embodiment.
The operation management sheet generating process of the operation management sheet generating apparatus 100 according to the first embodiment will be described with reference to FIG.

In S <b> 110, the device setting file selection unit 110 selects one unselected device setting file 191 from the input folder 101.
Hereinafter, the device setting file 191 selected in S110 is referred to as a “selected file”.
After S110, the process proceeds to S120.

FIG. 3 is a diagram illustrating an example of the device setting file 191 according to the first embodiment.
An example of the device setting file 191 in the first embodiment will be described with reference to FIG.

For example, the device setting file 191 includes the following information.
(1) The device setting file 191 includes the name “M corporation” of the manufacturer that manufactured the communication device.
(2) The device setting file 191 includes a model number “SW-Axxx” indicating the type of communication device and an item name “Model Number” indicating the model number in association with each other. The model number is an example of a setting value.
(3) The device setting file 191 includes a host name “HT-yyyy” set in the communication device and an item name “hostname” indicating the host name in association with each other. The host name is an example of a setting value.
(4) The device setting file 191 includes a setting line block composed of one or more setting lines. Each setting line includes a setting value.
For example, the setting line block includes the following setting lines.
(4-1) The setting row block includes a network identifier “GigabitEthernet 0/1” (Ethernet is a registered trademark, the same applies hereinafter) indicating the type of network to which the communication device is connected, and an item name “interface” indicating the network identifier. Is provided with a setting line that associates. The network identifier is an example of a setting value.
(4-2) The setting row block includes a VLAN (Virtual) connected to the port of the communication device.
There is a setting line that associates a VLAN number “nnnn” that identifies a local area network) with an item name “vlan” that means the VLAN number. The VLAN number is an example of an item value.
(4-3) The setting row block has a setting value “no” indicating whether or not a function for automatically detecting MDI-X (Medium Dependent Interface Crossover) is required.
A setting line including “mdix auto” is provided.
(4-4) The setting line block includes a setting line that associates the setting value “portfast” indicating the function of the spanning tree with the item name “spanning-tree” indicating the function of the spanning tree.
(5) The device setting file 191 includes a mark symbol “!” That is a mark indicating the position of the setting row block for each setting row block.

  Returning to FIG. 2, the description will be continued from S120.

In S120, the model identifier extraction unit 120 extracts the name of the manufacturer of the communication device from the selection file (device setting file 191) selected in S110.
For example, a manufacturer name list 181 (see FIG. 4) indicating the manufacturer name of the communication device is stored in the device storage unit 190 in advance. Then, the model identifier extraction unit 120 searches the selected file using the manufacturer name shown in the manufacturer name list 181 as a search keyword. The manufacturer name found by the search is the extracted manufacturer name.
For example, the model identifier extraction unit 120 extracts the manufacturer name “M corporation” of (1) from the device setting file 191 of FIG.
Hereinafter, the name of the manufacturer extracted in S120 is referred to as “extracted manufacturer name”.

FIG. 4 is a diagram illustrating an example of the manufacturer name list 181 according to the first embodiment.
The manufacturer name list 181 is a file indicating one or more manufacturer names “M corporation” and “C corporation”.

The description of S120 (see FIG. 2) will be continued.
The model identifier extraction unit 120 extracts a model identifier representing the type of communication device from the selected file.
For example, a model item name table 182 (see FIG. 5) that associates a manufacturer name of a communication device with a model item name that represents a model identifier is stored in the device storage unit 190 in advance. The model identifier extraction unit 120 selects a model item name associated with the same manufacturer name as the extracted manufacturer name from the model item name table 182. Then, the model identifier extraction unit 120 searches the selected file using the selected model item name as a search keyword, and extracts a model identifier associated with the same model item name as the search keyword.
For example, the model identifier extraction unit 120 extracts the model identifier “SW-Axxx” of (2) from the device setting file 191 in FIG.
Hereinafter, the model identifier extracted in S120 is referred to as “extracted model identifier 121”.
After S120, the process proceeds to S130.

FIG. 5 is a diagram showing an example of the model item name table 182 in the first embodiment.
The model item name table 182 is a table that associates the manufacturer name “M corporation” with the model item name “Model Number”.

In S130 (see FIG. 2), the filter name selecting unit 130 selects a filter name associated with the same model identifier as the extracted model identifier 121 from the device management table 192 (see FIG. 6).
For example, the filter name selection unit 130 selects the filter name “SWfilter01” associated with the manufacturer name “M corporation” and the model name “SW-Axxx” extracted in S120 from the device management table 192 of FIG.
Hereinafter, the filter name selected in S130 is referred to as “selected filter name 131”.
After S130, the process proceeds to S140.

FIG. 6 is a diagram illustrating an example of the device management table 192 according to the first embodiment.
The device management table 192 is a table that associates “manufacturer name”, “model name”, “number of ports”, “device type”, “filter name”, and the like.

In S140 (see FIG. 2), the extraction filter execution unit 140 selects the extraction filter 193 identified by the selection filter name 131 selected in S130 from the filter folder 102. Hereinafter, the extraction filter 193 selected in S140 is referred to as a “selection filter”.
The selection filter is a program (also referred to as a module or a library) for extracting setting values of specific setting items from a selection file.

The extraction filter execution unit 140 executes the selection filter using the selection file as input data.
Then, the executed selection filter extracts the setting value of the setting item to be extracted from the selection filter, and generates an extraction list 141 (see FIG. 7) indicating the extracted setting value.
After S140, the process proceeds to S150.

FIG. 7 is a diagram illustrating an example of the extraction list 141 according to the first embodiment.
The extraction list 141 shows setting values extracted from the selected file for each setting item.
“Host name”, “interface”, “VLAN”, “MDI-X”, and “spanning tree” are examples of item names of setting items to be extracted.

FIG. 8 is a flowchart illustrating an example of the filter processing of the extraction filter 193 in the first embodiment.
The filter process (extraction algorithm) of the extraction filter 193 in the first embodiment will be described with reference to FIG.
However, the filter process illustrated in FIG. 8 is an example, and the filter process of the extraction filter 193 may be a process different from the process illustrated in FIG.

In S210, the extraction filter 193 searches the selection file (device setting file 191) using the host item name meaning the host name as a search keyword, and sets the host name setting value from the host name setting line including the host item name. Extract.
For example, the extraction filter 193 searches backward from the top of the device setting file 191 of FIG. 3 using the host item name “hostname” as a search keyword, and sets the host name from the host name setting line (3) including the host item name. The value “HT-yyyy” is extracted.
After S210, the process proceeds to S220.

In S220, the extraction filter 193 acquires one line at a time from the next line of the host name setting line of the selected file. Hereinafter, the line acquired in S220 is referred to as “acquired line”.
After S220, the process proceeds to S230.

In S230, the extraction filter 193 selects any one of the mark line of the setting line block, the setting line to be extracted, the last line of the selected file, and other lines (for example, blank lines) acquired in S220. Determine if it is a type row.
The setting line block is a portion composed of one or more setting lines including setting values. For example, (4) in FIG. 3 is a set row block.
The mark line is a line including a mark symbol that is a mark of the set line block. For example, (5) in FIG. 3 is a mark row including the mark symbol “!”.
The extraction target setting line is a line including a target keyword (for example, item name) related to the setting value of the extraction target. For example, each row included in the setting row block in FIG. 3 is a setting row to be extracted.
If the acquired row is a mark row of the set row block, the process proceeds to S240.
If the acquisition row is a setting row to be extracted, the process proceeds to S250.
If the acquired line is the last line of the selected file, the filtering process ends.
If the acquired row is another row, the process proceeds to S220 (not shown). Then, the extraction filter 193 newly acquires the next line (S220), and performs processing according to the type of the newly acquired line (S230 to S251).

In S240, the extraction filter 193 adds a record to the extraction list 141.
After S240, the process proceeds to S241.

In S241, the extraction filter 193 sets the set value of the host name extracted in S210 in the record of the extraction list 141.
For example, the extraction filter 193 writes the set value “HT-yyyy” of the host name in the “host name” column of the first record of the extraction list 141 (see FIG. 7).
After S241, the process returns to S220. Then, the extraction filter 193 newly acquires the next line (S220), and performs processing according to the type of the newly acquired line (S230 to S251).

In S250, the extraction filter 193 extracts a setting value from the acquisition line according to the type of the target keyword included in the acquisition line.
For example, if the first row of the first setting row block (4) in the device setting file 191 of FIG. 3 is an acquisition row, the extraction filter 193 sets the network identifier setting value “GigabitEthernet 0/1 from the acquisition row. Is extracted.
After S250, the process proceeds to S251.

In S251, the extraction filter 193 writes the setting value extracted in S250 into the record of the extraction list 141.
For example, the extraction filter 193 writes the setting value “GigabitEthernet 0/1” of the network identifier in the “Interface” column of the first record of the extraction list 141.
After S251, the process returns to S220. Then, the extraction filter 193 newly acquires the next line (S220), and performs processing according to the type of the newly acquired line (S230 to S251).

By performing the filter process of FIG. 8 on the device setting file 191 of FIG. 3, an extraction list 141 as shown in FIG. 7 is obtained.
Returning to FIG. 2, the description will be continued from S150.

In S 150, the operation management sheet generation unit 150 generates an operation management sheet 194 using the extraction list 141 generated in S 140, and stores the generated operation management sheet 194 in the output folder 103.
For example, the operation management sheet generation unit 150 stores the operation management sheet 194 in the output folder 103 as follows.
(1) The operation management sheet generation unit 150 stores the extraction list 141 as it is in the output folder 103 as the operation management sheet 194.
(2) The operation management sheet generation unit 150 edits the extraction list 141, such as changing item names, changing the order of items, and deleting items, and uses the edited extraction list 141 as the operation management sheet 194 to output folder 103. To remember.
(3) The operation management sheet generation unit 150 integrates the information of the extraction list 141 and information of other documents (for example, information on LAN cables and information on monitoring requirements), and an operation management sheet 194 indicating the integrated information. Is stored in the output folder 103.
After S150, the process proceeds to S160.

In S <b> 160, the device setting file selection unit 110 determines whether or not an unselected device setting file 191 remains in the input folder 101.
If an unselected device setting file 191 remains (YES), the process returns to S110.
When the unselected device setting file 191 does not remain (NO), that is, when the operation management sheet 194 is generated for all the device setting files 191, the operation management sheet generation processing ends.

  With the operation management sheet generation process of FIG. 2, the setting value can be extracted from the device setting file 191 using the extraction filter 193 corresponding to the type of the device setting file 191.

FIG. 9 is a diagram illustrating an example of a hardware configuration of the operation management sheet generating apparatus 100 according to the first embodiment.
An example of the hardware configuration of the operation management sheet generating apparatus 100 according to the first embodiment will be described with reference to FIG.

  The operation management sheet generating apparatus 100 includes an arithmetic device 901, an external storage device 902, a main storage device 903, a communication device 904, and an input / output device 905 connected to a bus 909.

The arithmetic device 901 is a CPU (Central Processing Unit) that executes a program.
The external storage device 902 is, for example, a ROM (Read Only Memory), a flash memory, or a hard disk device.
The main storage device 903 is, for example, a RAM (Random Access Memory).
The communication device 904 performs communication via the Internet, a LAN (local area network), a telephone line network, or other networks in a wired or wireless manner.
The input / output device 905 is, for example, a mouse, a keyboard, or a display device.

The program is normally stored in the external storage device 902, loaded into the main storage device 903, read into the arithmetic device 901, and executed by the arithmetic device 901.
For example, an operating system (OS) is stored in the external storage device 902. In addition, a program (an example of a set value extraction program) that realizes the function described as “˜unit” is stored in the external storage device 902. The OS and the program that realizes the function described as “˜unit” are loaded into the main storage device 903 and executed by the arithmetic device 901.

  “Determining”, “determining”, “extracting”, “detecting”, “setting”, “registering”, “selecting”, “generating”, “to” Information, data, signal values, or variable values indicating the results of processing such as “input”, “output of”, etc., are stored as files in the main storage device 903 or the external storage device 902. In addition, other data used by the operation management sheet generating apparatus 100 is stored in the main storage device 903 or the external storage device 902.

FIG. 9 shows an example of the hardware configuration of the operation management sheet generating apparatus 100 according to the first embodiment. The hardware configuration of the operation management sheet generating apparatus 100 is different from the configuration shown in FIG. Also good.
Note that the method according to the first embodiment (an example of a set value extraction method) can be realized by the procedure described with reference to a flowchart or the like.

  According to the first embodiment, setting values necessary for network operation management can be extracted from a device setting file of a communication device without knowledge about the communication device.

  DESCRIPTION OF SYMBOLS 100 Operation management sheet production | generation apparatus, 101 Input folder, 102 Filter folder, 103 Output folder, 110 Apparatus setting file selection part, 120 Model identifier extraction part, 121 Extraction model identifier, 130 Filter name selection part, 131 Selection filter name, 140 Extraction Filter execution unit, 141 extraction list, 150 operation management sheet generation unit, 181 manufacturer name list, 182 model item name table, 190 device storage unit, 191 device setting file, 192 device management table, 193 extraction filter, 194 operation management sheet, 901 arithmetic device, 902 external storage device, 903 main storage device, 904 communication device, 905 input / output device, 909 bus.

Claims (6)

A device setting file that stores a device setting file that includes a model identifier representing the type of the target device and one or more setting values set in the target device for each target device of one or more target devices that are management targets A storage unit;
An extraction program storage unit for storing one or more extraction programs for extracting setting values to be extracted from at least one of the device setting files stored in the device setting file storage unit;
A management table storage unit that stores a management table that associates one or more model identifiers with one or more program names;
A device setting file selection unit for selecting one device setting file as a selection file from the device setting file storage unit;
A model identifier extracting unit that extracts a model identifier included in the selected file as an extracted model identifier from the selected file selected by the device setting file selecting unit;
A program name selection unit that selects a program name associated with the same model identifier as the extracted model identifier extracted by the model identifier extraction unit from the management table stored in the management table storage unit; ,
An extraction program selection unit for selecting, as a selection program, an extraction program identified by the selected program name selected by the program name selection unit from the extraction program storage unit;
A setting value extraction apparatus comprising: an extraction program execution unit that executes the selection program selected by the extraction program selection unit. The set value extraction device according to claim 1, further comprising a management file generation unit configured to generate a management file in which one or more setting values extracted from the selection file are set by executing the selection program. . Each device setting file includes a setting value and an item name related to the setting value in association with each setting value,
Each extraction program extracts a setting value associated with an item name to be extracted from a device setting file to be processed among one or more device setting files stored in the device setting file storage unit. The set value extraction apparatus according to claim 1, wherein the set value extraction apparatus is a program that extracts the set value as a target. The first device setting file among the device setting files includes one or more setting row blocks including a setting row that associates the setting value to be extracted with the item name to be extracted, and the one or more settings. One or more placemarks that are each placemark of the row block,
The first extraction program among the extraction programs is a setting row block for each setting row block of the one or more setting row blocks based on the one or more landmark symbols included in the first device setting file. The set value extraction apparatus according to claim 3, wherein the set value extraction apparatus includes a program for extracting the set value to be extracted. A device setting file storage unit, an extraction program storage unit, a management table storage unit, a device setting file selection unit, a model identifier extraction unit, a program name selection unit, an extraction program selection unit, and an extraction program execution unit; A set value extraction method using a set value extraction device comprising:
The device setting file storage unit includes, for each target device of one or more target devices that are management targets, a device setting file that includes a model identifier of the target device and one or more setting values set in the target device. A storage unit for storing,
The extraction program storage unit is a storage unit that stores one or more extraction programs for extracting setting values to be extracted from at least one of the device setting files stored in the device setting file storage unit,
The management table storage unit is a storage unit that stores a management table that associates one or more model identifiers with one or more program names,
The device setting file selection unit selects one device setting file as a selection file from the device setting file storage unit,
The model identifier extraction unit extracts a model identifier included in the selection file as an extraction model identifier from the selection file selected by the device setting file selection unit,
The program name selection unit uses a program name associated with the same model identifier as the extracted model identifier extracted by the model identifier extraction unit from the management table stored in the management table storage unit as a selected program name Selected,
The extraction program selection unit selects, as a selection program, an extraction program identified by the selected program name selected by the program name selection unit from the extraction program storage unit,
The set value extraction method, wherein the extraction program execution unit executes the selection program selected by the extraction program selection unit.   A setting value extraction program for causing a computer to function as the setting value extraction device according to claim 1.

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