JP2008199433A - Processor, program, and processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology for responding the latest management information to an acquisition request from a network management device. <P>SOLUTION: The processor stores static information regarding a relay device 30 into a processing server 100 when information regarding the relay device 30 is acquired in order to manage the relay device 30 by a management server 20 and returns information from the processing server 100 to the management server 20 for an acquisition request for the static information among an acquisition request of information from the management server 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a processing apparatus connected to a management apparatus that manages a relay apparatus that relays data in a network.

  As the use of the Internet expands and the standardization of network technology advances, various network nodes such as routers have been developed, and a technique for managing these various network nodes with a network management device is known.

  In the network management apparatus, an operation for acquiring management information from a network node, an operation for setting management information in the network node, and the like are performed via the network.

  In this regard, in the technique described in Patent Document 1, a proxy server is provided in the network, management information acquired by the network management device from the network node is cached in the proxy server, and management information is again transmitted from the network management device to the network node. If the management information cached by the proxy server can be responded when requesting the acquisition of the network node, the management information is sent from the proxy server to the network management device, so that the network node and traffic The load is not applied.

JP-A-9-270794

  In the technique described in Patent Document 1, it is not clear whether the management information responded from the proxy server to the acquisition request from the network management device is the latest. That is, when the network node setting is changed after the management information is cached by the proxy server, the cached management information is not the latest and does not accurately reflect the network node management information.

  Therefore, an object of the present invention is to provide a technique capable of responding to the latest management information in response to an acquisition request from a network management apparatus.

  In order to solve the above problems, the present invention acquires information from the management server by storing static information about the relay device in the processing server when managing the relay device in the management server. In response to the request, the processing server responds to the management server for the static information.

  For example, the present invention is a processing device connected via a network to a management device that manages a relay device that relays data in a network, the storage unit storing specific information related to the relay device, and the relay An interface unit that transmits and receives information to and from the management device, and a control unit, and the control unit receives an acquisition request for acquiring information about the relay device from the management device via the interface unit Processing to transmit the specific information to the management device via the interface unit when the acquisition request is a request to acquire the specific information stored in the storage unit; When the acquisition request is not a request for acquiring the specific information stored in the storage unit, information about the relay device is transmitted from the relay device. Acquires, through the interface unit, and performs a process of transmitting the acquired information about the relay device to the management device.

  As described above, according to the present invention, the latest management information can be responded to the acquisition request from the network management apparatus.

  FIG. 1 is a schematic diagram of a processing system 10 according to a first embodiment of the present invention.

  The processing system 10 includes a management server 20, a processing server 100, a relay device 30 such as an edge router, and an IX router 40, so that these can communicate with each other via a network 50. Has been. An IX (Internet eXchange) router 40 is connected to the Internet 60, and a user terminal (not shown) connected to a user-side router 80 described later connects to the Internet 60 via the IX router 40. Have been able to.

  Further, the L2 switch 70 and the user side router 80 are connected to the relay device 30. Then, the relay device 30 identifies the user access line by identifying the user side router 80 using a tag VLAN (Virtual Local Area Network).

  In the processing system 10 configured as described above, the management server 20 controls the relay device 30 via the processing server 100 based on a connection request and a connection release request from a user of the processing system 10.

  Here, although the management server 20 uses a management interface using XML (eXtensible Markup Language), the relay device 30 does not support a management interface using XML, and the processing server 100 uses XML. The management interface is converted to CLI (Command Line Interface), and the command of the converted CLI is input to the relay device 30 to control the relay device 30.

  FIG. 2 is a schematic diagram of the management server 20.

  As illustrated, the management server 20 includes a control unit 21, an input unit 22, a display unit 23, and an IF (InterFace) unit 24.

  The control unit 21 controls the processing of the entire management server 20. In particular, in the present embodiment, the control unit 21 receives and receives a request input from the operator of the management server 20 to the relay device 30 via the input unit 22 described later. The input is made into a request message in XML format.

  Then, the XML-format request message generated in this way is transmitted to the processing server 100 via the IF unit 24 described later.

  In addition, the control unit 21 in the present embodiment displays a response message received from the processing server 100 via the IF unit 24 described later in a predetermined display format on the display unit 23 described later.

  Here, the XML message for controlling the relay device 30 between the management server 20 and the processing server 100 in the present embodiment is, for example, a structure as shown in FIG. 3 (schematic diagram showing the structure of the XML message). Is used. In FIG. 3, it is assumed that the character string in the ellipse indicates an element, and the character string in the rectangle indicates an attribute.

  In the XML message in the present embodiment, the request messages transmitted from the management server 20 to the processing server 100 are four types of “get-config”, “set-config”, “get”, and “set”. These request messages are specified by the value of the “type” attribute of the “operation” element.

  On the other hand, response messages to these request messages can be identified by setting “on” to the value of the “rsp_flag” attribute.

  In addition, the “get-config” and “get” request messages specify the element that requests information acquisition in the child element of the “operation” element, and the response message specifies the value of the specified element. It shall respond with the values of all child elements of the element.

  In addition, for the “set-config” and “set” request messages, specify the element to be set in the child element of the “operation” element, and if the request requests addition or change, The value of the specified element is specified, and when the request requests deletion, it is specified by the “del_flag” attribute or the “clr_flag” attribute of the specified element. Note that a “return-code” attribute for indicating the execution result is added to the response message, and the information included in the request message is also returned.

  Returning to FIG. 2, the input unit 22 is a device that receives data input from an operator of the management server 20.

  The display unit 23 is a device for outputting data.

  The IF unit 24 is an interface for transmitting and receiving information via the network 50.

  The management server 20 described above includes, for example, a CPU 901, a memory 902, an external storage device 903 such as an HDD, a CD-ROM, a DVD-ROM, and the like as shown in FIG. 9 (schematic diagram of the computer 900). A reader 905 that reads information from a portable storage medium 904, an input device 906 such as a keyboard and a mouse, an output device 907 such as a display, and a communication such as a NIC (Network Interface Card) for connecting to a communication network And a general computer 900 including the device 908.

  For example, the control unit 21 can be realized by loading a predetermined program stored in the external storage device 903 into the memory 902 and executing it by the CPU 901, and the input unit 22 can be realized by the input device 906, The display unit 23 can be realized by the output device 907, and the IF unit 24 can be realized by the communication device 908.

  The predetermined program is downloaded from the storage medium 904 via the reading device 905 or from the network via the communication device 908 to the external storage device 903, and then loaded onto the memory 902 and executed by the CPU 901. You may do it. Further, the program may be directly loaded on the memory 902 from the storage medium 904 via the reading device 905 or from the network via the communication device 908 and executed by the CPU 901.

  FIG. 4 is a schematic diagram of the processing server 100.

  As illustrated, the processing server 100 includes a storage unit 110, a control unit 120, and an IF unit 130.

  The storage unit 110 includes an interface management information storage area 111, a VLAN management information storage area 112, a flow filter management information storage area 113, a conversion information storage area 114, and a relay device management information storage area 115.

  Here, in the present embodiment, setting information for setting from the management server 20 to the relay device 30 is stored in the interface management information storage area 111, the VLAN management information storage area 112, and the flow filter management information storage area 113. . Such setting information is static information because once it is set, it remains as it is unless it is changed thereafter, that is, it is not changed by the relay device relaying data in the network. It is thought that.

  In the interface management information storage area 111, information for managing the interface (slot) of each relay device 30 is stored.

  For example, the interface management information storage area 111 stores an interface management table 111a as shown in FIG. 5 (schematic diagram of the interface management table 111a).

  As illustrated, the interface management table 111a includes a relay device name column 111b, a slot number column 111c, a port number column 111d, a LINE name column 111e, and an IF type column 111f.

  In the relay device name column 111b, identification information for identifying each relay device 30 is stored. Here, a relay device name uniquely assigned to each relay device 30 is stored.

  The slot number column 111c stores a slot number that is identification information for identifying the slot of the relay device 30 specified in the relay device name column 111b.

  The port number column 111d stores the port number of the relay device 30 specified in the relay device name column 111b.

  The LINE name column 111e stores identification information for identifying the line connected to the port specified in the port number column 111d. Here, the LINE name uniquely assigned to each line is stored.

  In the IF type column 111f, information specifying the physical standard of the slot specified in the slot number column 111c is stored. For example, in the present embodiment, a standard name such as “ethernet” is stored.

  Returning to FIG. 4, the VLAN management information storage area 112 stores information for specifying the VLAN set in the relay device 30.

  For example, the VLAN management information storage area 112 stores a VLAN management table 112a as shown in FIG. 6 (schematic diagram of the VLAN management table 112a).

  As shown in the figure, the VLAN management table 112a includes a relay device name column 112b, a LINE name column 112c, a VLAN name column 112d, a VLAN ID column 112e, a VLAN-IP address column 112f, an RA setting flag column 112g, Is provided.

  In the relay device name column 112b, identification information for identifying each relay device 30 is stored. Here, the relay device name uniquely assigned to each relay device 30 is stored.

  In the LINE name column 112c, identification information for identifying a line connected to the relay device 30 specified in the relay device name column 112b is stored. Here, the LINE name uniquely assigned to each line is stored.

  The VLAN name column 112d stores identification information for identifying the VLAN assigned to the relay device 30 specified in the relay device name column 112b and the line specified in the LINE name column 112c. Here, the VLAN name of each VLAN is stored as identification information for identifying the VLAN.

  The VLAN ID column 112e stores identification information for identifying the VLAN assigned to the line specified by the LINE name column 112c. Here, VLAN-ID uniquely assigned to each VLAN is stored as identification information for identifying the VLAN.

  The VLAN-IP address column 112f stores information for specifying the IP address assigned to the VLAN specified in the VLAN ID column 112e.

  The RA setting flag column 112g stores information for specifying whether RA (Router Advertisement) is set for the VLAN specified in the VLAN ID column 112e. Here, in this embodiment, when “ON” is stored in this column, it indicates that RA is set, and when “OFF” is stored in this column, RA is set. Indicates that is not set.

  Returning to FIG. 4, the flow filter management information storage area 113 stores information for specifying the flow filter in each relay device 30.

  For example, the flow filter management information storage area 113 stores a flow filter management table 113a as shown in FIG. 7 (schematic diagram of the flow filter management table 113a).

  As illustrated, the flow filter management table 113a includes a VLAN name column 113b, a priority column 113c, a protocol column 113d, a source address column 113e, a destination address column 113f, and an action column 113g.

  The VLAN name column 113b stores identification information for identifying the VLAN of the flow filter target (input side). Here, the VLAN name of each VLAN is stored as identification information for identifying the VLAN.

  Information for specifying the priority of the flow filter is stored in the priority column 113c. Here, in the present embodiment, numbers are stored as appropriate so that the ascending order of natural numbers from “1” is the order of higher priority.

  The protocol column 113d stores information for specifying a protocol that is a flow filter detection condition.

  The source address column 113e stores information for specifying a source address that is a flow filter detection condition.

  The destination address column 113f stores information for specifying a destination address which is a flow filter detection condition.

  The action column 113g stores information for specifying processing to be performed as a flow filter.

  The information stored in the interface management table 111a, the VLAN management table 112a, and the flow filter management table 113a described above is the configuration information of the relay device 30 at an appropriate time such as when the processing server 100 is started up. What is necessary is just to acquire and store in each table.

  Returning to FIG. 4, the conversion information storage area 114 stores conversion information for converting the request transmitted from the management server 20 into a format supported by the relay device 30.

  For example, in the present embodiment, an XSLT stylesheet for converting a request described in XML into a CLI command is stored. Since the XSLT stylesheet is a known one, detailed description thereof is omitted.

  The relay device management information storage area 115 stores information necessary for making a remote connection to the relay device 30 via Telnet and inputting a command.

  For example, the relay device management information storage area 115 stores a relay device management table 115a shown in FIG. 8 (schematic diagram of the relay device management table 115a).

  As illustrated, the relay device management table 115a includes a relay device name column 115b, a management IP address column 115c, a login name column 115d, a login password column 115e, and a privileged password column 115f.

  Identification information for identifying the relay device 30 is stored in the relay device name column 115b. Here, a relay device name uniquely assigned to each relay device 30 is stored.

  Information for specifying the management IP address of the relay device 30 specified in the relay device name column 115b is stored in the management IP address column 115c.

  The login name column 115d stores information for specifying a login name when connecting to the relay device 30 specified by the relay device name column 115b via Telnet.

  The login password column 115e stores information for specifying a login password when connecting to the relay device 30 specified by the relay device name column 115b via Telnet.

  The privileged password column 115f stores information for specifying a privileged password required when setting, changing, or deleting specific information by connecting to the relay device 30 identified by the relay device name column 115b via telnet. .

  Returning to FIG. 4, the control unit 120 includes an operation determination processing unit 121, an information processing unit 122, a CLI conversion processing unit 123, an XSLT processor unit 124, a command input processing unit 125, a response processing unit 126, and a table. And an update unit 127.

  The operation determination processing unit 121 analyzes a request message received from the management server 20 via the IF unit 130 described later, and if it is a specific request message (in this embodiment, “get-config”), The information processing unit 122 is called to perform processing. In the case of a request message other than the specific request message, the CLI processing unit 123 is called to perform processing.

  When the information processing unit 122 receives a call from the operation determination processing unit 121, the information specified by the request message received from the management server 20 stores information specified in the interface management information storage area 111 and the VLAN management information storage area 112 of the storage unit 110. Alternatively, a process of extracting from the flow filter management information storage area 113 and returning via the IF unit 130 described later is performed.

  When receiving the call from the operation determination processing unit 121, the CLI conversion processing unit 123 calls the XSLT processor unit 124 to generate a CLI command file corresponding to the request message received from the management server 20, and generates the generated CLI command. The file is output to a command input processing unit 125 described later.

  The XSLT processor unit 124 receives a call from the CLI conversion processing unit 123 and uses the XSLT stylesheet stored in the conversion information storage area 114 to generate a CLI command file corresponding to the request message received from the management server 20. Generate.

  The command input processing unit 125 extracts information corresponding to the relay device 30 specified by the request message received from the management server 20 from the relay device management table 115a, and specifies the CLI command file output from the CLI conversion processing unit 123. Input the command to be executed.

  When the response processing unit 126 receives a result response from the relay device 30 that has input the CLI command corresponding to the request message received from the management server 20 via the IF unit 130 described later, the response processing unit 126 responds to the result response. A message is generated in the XML format and transmitted to the management server 20 via the IF unit 130 described later.

  Further, when the request message received from the management server 20 is a specific request message (“set-config” in the present embodiment), the response processing unit 126 confirms that the result response from the relay device 30 is successful. In the case of identifying the success, the table update unit 127 is notified of information corresponding to the request received from the management server 20.

  Based on the request message received from the management server 20, the table update unit 127 identifies a table stored in the interface management information storage area 111, the VLAN management information storage area 112, or the flow filter management information storage area 113. Processing for storing, changing or deleting information is performed.

  The IF unit 130 is an interface for transmitting and receiving information via the network 50.

  The processing server 100 described above can also be realized by a general computer 900 as shown in FIG. 9, for example.

  For example, the storage unit 110 can be realized by the external storage device 903, and the control unit 120 can be realized by loading a predetermined program stored in the external storage device 903 into the memory 902 and executing it by the CPU 901. The IF unit 130 can be realized by the communication device 908.

  The predetermined program is downloaded from the storage medium 904 via the reading device 905 or from the network via the communication device 908 to the external storage device 903, and then loaded onto the memory 902 and executed by the CPU 901. You may do it. Further, the program may be directly loaded on the memory 902 from the storage medium 904 via the reading device 905 or from the network via the communication device 908 and executed by the CPU 901.

  In the processing system 10 configured as described above, processing when controlling the relay device 30 from the management server 20 will be described with reference to sequence diagrams shown in FIGS.

  FIG. 10 is a sequence diagram illustrating processing when setting information of the relay device 30 is acquired.

  First, the control unit 21 of the management server 20 generates a request message for acquiring setting information of the relay device 30 (S200).

  For example, the control unit 21 displays a VLAN status display screen 160 as shown in FIG. 14 (schematic diagram of the VLAN status display screen 160) on the display unit 23, and requests input from the operator via the input unit 22. .

  Here, the VLAN status display screen 160 includes a relay device name input field 160a, a slot number input field 160b, a port number input field 160c, a VLAN setting status display field 160d, a VLAN status display instruction button 160e, and a VLAN addition. An instruction button 160f, a VLAN deletion instruction button 160g, and a VLAN statistics display instruction button 160h are provided.

  Then, the operator of the management server 20 inputs the relay device name, slot number, and port number of the relay device that requests acquisition of the setting information via the input unit 22, respectively, as a relay device name input field 160a, a slot number input field 160b, and By inputting an execution command specifying the VLAN status display instruction button 160e in the port number input field 160c, the control unit 21 acquires the input setting information of the relay device name, slot number, and port number. A request message is generated in XML format.

  Here, the request message generated by the control unit 21 is, for example, a request message 170 as shown in FIG. 15 (schematic diagram of the request message 170).

  In the present embodiment, when an execution instruction for selecting the VLAN status display instruction button 160e is made, it is requested to acquire static setting information stored in the processing server 100. In the request message 170 for acquiring such static setting information, the character string “get-config” is stored in the “type” attribute 170 a of the “operation” element.

  Next, the control unit 21 of the management server 20 outputs the request message thus generated to the network 50 via the IF unit 24 (S201).

  The request message output from the management server 20 is received by the processing server 100, and the operation determination processing unit 121 of the processing server 100 confirms the type of the request message (S202).

  Here, the operation determination processing unit 121 checks the “type” attribute of the “operation” element of the request message received from the management server 20, and if this “type” attribute is “get-config”, information The processing is performed by the processing unit 122, and in the case other than “get-config”, the processing is performed by the CLI conversion processing unit 123.

  In this regard, in this sequence, since the “type” attribute is “get-config”, the information processing unit 122 generates a response message corresponding to the request message from the management server 20 (S203).

  For example, as in the case of the request message 170 illustrated in FIG. 15, when setting information with the relay device name “router1”, the slot number “1”, and the port number “1” is acquired, The unit 122 includes the relay device name and slot number included in the request message in the relay device name column 111b, the slot number column 111c, and the port number column 111d of the interface management table 111a stored in the interface management information storage area 111. The line corresponding to the port number is specified, and the line name stored in the LINE name column 111e of the line is specified.

  Then, the information processing unit 122 relays the relay device name in the VLAN management table 112a in which the relay device name included in the request message and the line name specified from the interface management table 111a are stored in the VLAN management information storage area 112. The lines stored in the name column 112b and the LINE name column 112c are specified, and the information stored in the VLAN name column 112d, the VLANID column 112e, the VLAN-IP address column 112f, and the RA setting flag column 112g of the specified row is displayed. get.

  The information processing unit 112 generates a response message by converting the information acquired from the interface management table 111a and the VLAN management table 112a into a predetermined XML format.

  The information processing unit 112 transmits the response message generated in this way to the management server 20 via the IF unit 130 (S204).

  Then, the management server 20 that has received such a response message displays the information received by the control unit 21 on the display unit 23 in a predetermined format (S205).

  For example, the control unit 21 displays the received information in the VLAN setting status display field 160d of the VLAN status display screen 160.

  As described above, in this embodiment, static information that is fixed to some extent, such as setting information of the relay device 30, is collectively managed by the processing server 100, and the request is received from the management server 20. In response to the response from the processing server 100, the processing load on the relay device 30 and the traffic load on the network 50 can be reduced. Note that static information stored in the processing server 100 is selected in advance so that it is set once and does not need to be changed thereafter.

  FIG. 11 is a sequence diagram illustrating processing when setting is performed in the relay device 30.

  First, the control unit 21 of the management server 20 generates a request message for setting the relay device 30 (S210).

  For example, the control unit 21 receives an execution command specifying the VLAN addition instruction button 160f from the operator via the input unit 22 on the VLAN status display screen 160 as shown in FIG. A VLAN addition screen 161 as shown in the schematic diagram of the addition screen 161 is displayed on the display unit 23 to request input from the operator.

  Here, the VLAN addition screen 161 includes a relay device name input field 161a, a slot number input field 161b, a port number input field 161c, a VLAN name input field 161d, a VLANID input field 161e, and an IP address input field 161f. An execution instruction button 161g.

  Then, the operator of the management server 20 inputs the relay device name, slot number, port number, VLAN name, VLAN ID, and IP address of the relay device that sets the VLAN into the corresponding fields via the input unit 22. When the execution instruction specifying the execution instruction button 161g is input, the control unit 21 generates a request message for setting the VLAN in the XML format.

  Here, the request message generated by the control unit 21 is, for example, a request message 171 as shown in FIG. 17 (schematic diagram of the request message 171).

  In the request message 171 for performing a relatively fixed static setting in the relay device 30, the character string “set-config” is stored in the “type” attribute 171a of the “operation” element.

  The request message generated in this way is output to the network 50 via the IF unit 24 (S211).

  The request message output from the management server 20 is received by the processing server 100, and the operation determination processing unit 121 of the processing server 100 confirms the type of the request message (S212).

  Here, since the “type” attribute of the “operation” element of the request message received from the management server 20 is “set-config”, the operation determination processing unit 121 performs conversion processing to a CLI command by the CLI conversion processing unit 123. (S213).

  In the conversion processing in the CLI conversion processing unit 123, a call is made to the XSLT processor unit 124, and the XSLT processor unit 124 performs conversion into a CLI command based on the XSLT stylesheet stored in the conversion information storage area 112. . By performing such conversion, for example, a CLI command file 172 as shown in FIG. 18 (schematic diagram of the CLI command file 172) is generated. Here, the CLI command file 172 is arranged so that one command is one line.

  The CLI command file 172 generated in this way is output from the CLI conversion processing unit 123 to the command input processing unit 125, and the command input processing unit 125 inputs a command to the relay device 30 via the IF unit 130 (S214). ).

  Specifically, the command input processing unit 125 identifies the line of the relay apparatus management table 115a corresponding to the relay apparatus name of the request message received from the management server 20, and the management IP address, login name, login in the line Extract ID and privileged password. The command input processing unit 125 then connects to the relay device 30 corresponding to the extracted management IP address by telnet, logs in using the login name and login ID, and obtains command execution authority using the privileged password. Then, the command group stored in the converted CLI command file is sequentially executed from the top. If an error occurs when a command is input, the command input processing unit 125 inputs a command for canceling the execution of the command input so far, and returns to the state before receiving the request message. To.

  In the relay device 30 to which the command has been input in this way, the command is executed (S215), and the result is transmitted to the processing server 100 as a result response (S216).

  A result response from the relay device 30 is received by the command input processing unit 125 via the IF unit 130, and when processing has been completed for all input commands (all commands specified by one request message), The process proceeds from the command input processing unit 125 to the response processing unit 126.

  If there is a successful response to all the input commands, the response processing unit 126 outputs the setting information input by the command to the table updating unit 127, and the table updating unit 127 stores the setting information in the storage unit 110. The stored table is updated (S217).

  For example, the table update unit 127 stores information about the VLAN set by inputting a command in the corresponding row and column of the VLAN management table 112a and the flow filter management table 113a.

  Then, the response processing unit 126 generates a response message (S218).

  As a response message to the “set-config” request message, for example, elements and attributes necessary as a response are added to the request message. Specifically, the “rsp_flag” attribute of the “operation” element is set to “ON”, and if the command is successfully input to the value of the “return-code” element, “OK” is stored and the command is input. If an error occurs, “NG” is stored.

  The response message generated as described above is transmitted to the management server 20 via the IF unit 130 (S219), and the control unit 21 of the management server 20 displays it on the display unit 23 in a predetermined format (S220).

  By performing the processing as described above, when setting that is fixed to some extent, such as VLAN setting, the set information is stored in the processing server 100. The processing server 100 can respond to the acquisition request.

  FIG. 12 is a sequence diagram illustrating processing when acquiring information regarding the relay device 30.

  First, the control unit 21 of the management server 20 generates a request message for acquiring information related to the relay device 30 (S230).

  For example, the control unit 21 requests selection of VLAN setting information displayed in the VLAN setting state field 160d on the VLAN state display screen 160 as shown in FIG. The request message 173 as shown in FIG. 19 (schematic diagram of the request message 173) is generated by inputting the execution command specifying the VLAN statistics display instruction button 160h.

  Here, in the request message 173 for acquiring dynamic information regarding the relay device 30, the character string “get” is stored in the “type” attribute 173a of the “operation” element.

  The request message generated in this way is output to the network 50 via the IF unit 24 (S231).

  The request message output from the management server 20 is received by the processing server 100, and the operation determination processing unit 121 of the processing server 100 confirms the type of the request message (S232).

  Here, since the “type” attribute of the “operation” element of the request message received from the management server 20 is “get”, the operation determination processing unit 121 performs conversion processing to a CLI command by the CLI conversion processing unit 123. (S233).

  In the conversion processing in the CLI conversion processing unit 123, a call is made to the XSLT processor unit 124, and the XSLT processor unit 124 performs conversion into a CLI command based on the XSLT stylesheet stored in the conversion information storage area 112. .

  The CLI command file generated by converting the request message is output from the CLI conversion processing unit 123 to the command input processing unit 125, and the command input processing unit 125 inputs the command to the relay device 30 via the IF unit 130. (S234).

  Specifically, the command input processing unit 125 identifies the line of the relay apparatus management table 115a corresponding to the relay apparatus name of the request message received from the management server 20, and the management IP address, login name, login in the line Extract ID and privileged password. The command input processing unit 125 then connects to the relay device 30 corresponding to the extracted management IP address by telnet, logs in using the login name and login ID, and obtains command execution authority using the privileged password. Then, the command group stored in the converted CLI command file is sequentially executed from the top.

  In the relay device 30 to which the command has been input in this way, the command is executed (S235), and necessary information is transmitted to the processing server 100 as a result response (S236).

  The result response from the relay device 30 is received by the command input processing unit 125 via the IF unit 130, and when the processing is completed for all input commands, the command input processing unit 125 processes the response processing unit 126. Move.

  If there is a result response to all the input commands, the response processing unit 126 generates a response message (S237).

  The response message for the “get” request message is generated, for example, by adding elements and attributes necessary as a response to the request message. Specifically, the “rsp_flag” attribute of the “operation” element is set to “ON”, and when the result response to the command is “normal”, “OK” is stored in the value of the “return-code” element, If the result response to the command is "abnormal", "NG" is stored, and the statistical information obtained by the result response to the command is stored in each element "in-forward", "out-forward", "in-drop" , Set to "out-drop" value.

  The response message generated as described above is transmitted to the management server 20 via the IF unit 130 (S238), and the control unit 21 of the management server 20 displays it on the display unit 23 in a predetermined format (S239). For example, the display unit 23 displays a VLAN statistics display screen 174 as shown in FIG. 20 (schematic diagram of the VLAN statistics display screen 174).

  By performing the above processing, information that changes dynamically, such as VLAN statistical information, can be acquired from the relay device 30 so that the management server 20 can acquire the latest information. it can.

  Here, the statistics display screen 174 includes a VLAN statistics information display field 174a and a clear instruction button 174b.

  FIG. 13 is a sequence diagram illustrating processing when setting information regarding the relay device 30.

  First, the control unit 21 of the management server 20 generates a request message for dynamically setting the relay device 30 (S240).

  For example, when deleting the statistical information displayed in the VLAN statistical information column 174a on the VLAN statistics display screen 174 as shown in FIG. 20, the control unit 21 inputs an execution command specifying the clear instruction button. When the operator inputs via 22, a request message 175 as shown in FIG. 21 (schematic diagram of request message 175) is generated.

  Here, in the request message 175 for performing dynamic setting regarding the relay device 30, the character string “set” is stored in the “type” attribute 175a of the “operation” element.

  The request message generated in this way is output to the network 50 via the IF unit 24 (S241).

  The request message output from the management server 20 is received by the processing server 100, and the operation determination processing unit 121 of the processing server 100 confirms the type of the request message (S242).

  Here, since the “type” attribute of the “operation” element of the request message received from the management server 20 is “set”, the operation determination processing unit 121 performs conversion processing to the CLI command by the CLI conversion processing unit 123. (S243).

  In the conversion processing in the CLI conversion processing unit 123, a call is made to the XSLT processor unit 124, and the XSLT processor unit 124 performs conversion into a CLI command based on the XSLT stylesheet stored in the conversion information storage area 112. .

  The CLI command file generated by converting the request message is output from the CLI conversion processing unit 123 to the command input processing unit 125, and the command input processing unit 125 inputs the command to the relay device 30 via the IF unit 130. (S244).

  Specifically, the command input processing unit 125 identifies the line of the relay apparatus management table 115a corresponding to the relay apparatus name of the request message received from the management server 20, and the management IP address, login name, login in the line Extract ID and privileged password. The command input processing unit 125 then connects to the relay device 30 corresponding to the extracted management IP address by telnet, logs in using the login name and login ID, and obtains command execution authority using the privileged password. Then, the command group stored in the converted CLI command file is sequentially executed from the top.

  The relay device 30 to which the command has been input in this way executes the command (S245), and transmits necessary information to the processing server 100 as a result response (S246).

  The result response from the relay device 30 is received by the command input processing unit 125 via the IF unit 130, and when the processing is completed for all input commands, the command input processing unit 125 processes the response processing unit 126. Move.

  If there is a result response to all the input commands, the response processing unit 126 generates a response message (S247).

  The response message for the “set” request message is generated by adding elements and attributes necessary as a response to the request message, for example. Specifically, the “rsp_flag” attribute of the “operation” element is set to “ON”, and when the result response to the command is “normal”, “OK” is stored in the value of the “return-code” element, When the result response to the command is “abnormal”, “NG” is stored.

  The response message generated as described above is transmitted to the management server 20 via the IF unit 130 (S248), and the control unit 21 of the management server 20 displays it on the display unit 23 in a predetermined format (S249).

  By performing the process as described above, when the process of dynamically setting the VLAN statistical information is performed, the process can be quickly performed by not storing the information in the processing server 100. it can.

  As described above, according to the processing system 10 according to the present embodiment, since the latest information is held in the processing server 100 for static information, there has been a request for acquisition of static information from the management server 20. In this case, by responding from the processing server 100, the response time can be shortened and the processing load on the relay apparatus can be reduced. On the other hand, with regard to dynamic information, the latest information can be acquired by allowing the management server 20 to acquire the information from the relay device 30.

  Here, the operator of the processing system 10 determines in advance whether the information is static or dynamic. For example, the dynamic information is information that the setting value is changed in the relay device 30 even if it is set once, and the static information is not changed unless it is changed once again by the operator once set. Such information (or part of such information) is desirable.

  In the embodiment described above, whether to acquire or set static information or to acquire or set dynamic information has been determined in advance for each request message transmitted from the management server 20. For example, each time the operator of the management server 20 transmits a request message, it is possible to select one of them.

  In this case, it is desirable that “set” or “set-config” or “get” or “get-config” can be selected as a display image to be displayed on the display unit 23.

  In this case, since there is an operator's benefit when sending a request corresponding to the request message assigned to “set-config” or “get-config” in the first embodiment, It is desirable to be able to make a selection when sending a request message.

  In this way, by allowing the operator of the management server 20 to change the operation type of the request message, information stored in the processing server 100 can be controlled, and efficient management can be performed.

  For example, information that is frequently accessed can be set using a “set-config” request, whereby high-speed information acquisition can be performed using a “get-config” request. On the other hand, information that is hardly accessed can be set by using a “set” request to reduce the amount of data held in the processing server 100, thereby speeding up the internal information search processing in the processing server 100. You can also plan.

  In the embodiment described above, a column for storing the effective period is provided in each row of the VLAN management table 112a and the flow filter management table 113a, and if the effective period has passed, “get Even when a “-config” request is received, a reply is sent from the information processing unit 122 to the operation determination processing unit 121 so as to acquire information necessary for each relay device 30, and the processing is performed from the operation determination processing unit 421 to the CLI conversion processing unit 123. May be taken over. In this case, when the table updating unit 127 updates each row of the VLAN management table 112a and the flow filter management table 113a, the valid period is also updated.

  FIG. 22 is a schematic diagram of the processing server 300 in the processing system according to the second embodiment of the present invention.

  Here, in the first embodiment, the management server 20 uses a management interface using XML, and the relay device 30 uses CLI. Therefore, the processing server 100 converts a request message into a command. However, in this embodiment, since the management server 20 and the relay device 30 support a management interface using XML, it is not necessary to perform such conversion in the processing server 300.

  In the first embodiment, the processing server 100 determines whether the information is stored in the storage unit 310 or stored information based on the “type” attribute of the “operation” element. However, in this embodiment, the operation determination processing unit 321 makes the determination based on the request type management table 316a stored in the request type management information storage area 316 of the storage unit 310 as described later. I have to. Therefore, the “type” attribute of the “operation” element of the request message sent from the management server 20 is “get” indicating that the operation is to acquire information, or is an operation for setting information. One of “set” indicating “” is stored.

  Hereinafter, the processing server 300 in the present embodiment will be described.

  As illustrated, the processing server 300 includes a storage unit 310, a control unit 320, and an IF unit 130.

  The storage unit 310 of the processing server 300 includes an interface management information storage area 111, a VLAN management information storage area 112, a flow filter management information storage area 113, a relay device management information storage area 115, and a request type management information storage area 316. And comprising.

  Here, when the storage unit 310 in the present embodiment is compared with the first embodiment, the conversion of the request message is not necessary, so the conversion information storage area 114 in the first embodiment is not necessary. A management information storage area 316 is provided.

  The request type management information storage area 316 stores information for determining the type of request by the operation determination processing unit 321 described later.

  For example, the request type management information storage area 316 stores a request type management table 316a as shown in FIG. 23 (schematic diagram of the request type management table 316a).

  The request type management table 316a includes an information type column 316b and an internal retention valid flag column 316c.

  The information type column 316b stores information for specifying an element name for determining the type of the request message. Here, in this embodiment, each element name that is a child element of the “operation” element of the request message is stored as an element name for determining the type of the request message. For example, when the XML message structure as shown in FIG. 3 is used, each element below the “operation” element is stored.

  In the internal retention valid flag column 316c, when the element name specified in the information type column 316b is a child element of the “operation” element of the request message, information related to the element serving as the child element is displayed. Information for specifying whether to store in the processing server 100 is stored. Here, when the character string “ON” is stored in the internal retention valid flag field 316c, it indicates that information related to the child element is stored in the processing server 100, and “OFF "Is stored, it indicates that information relating to the child element is not stored in the processing server 100.

  In this regard, in the present embodiment, “ON” is displayed in the internal retention valid flag column 316c for information similar to the information stored in the VLAN management information storage area 112 and the flow filter management information storage area 113 in the first embodiment. Therefore, the same table as that in the first embodiment is stored in these areas 112 and 113.

  Returning to FIG. 22, the control unit 320 includes an operation determination processing unit 321, an information processing unit 122, a command input processing unit 325, a response processing unit 326, and a table update unit 227.

  The operation determination processing unit 321 analyzes the request message received from the management server 20 via the IF unit 130 and, if it is a specific request message, calls the information processing unit 122 to perform processing. In the case of a request message other than the specific request message, the command input processing unit 325 is called to perform processing.

  Specifically, in this embodiment, when the “type” attribute of the “operation” element of the request message is “get”, the element name of the child element of the “operation” element is changed to the information type of the request type management table 316a. A search is made from the column 316b, and the internal retention valid flag column 316c corresponding to the searched element name is confirmed. If the character string “ON” is stored in the internal retention valid flag field 316c, the information processing unit 122 performs processing. If the character string “OFF” is stored, The input processing unit 325 performs processing.

  The operation determination processing unit 321 performs processing in the command input processing unit 325 when the “type” attribute of the “operation” element of the request message is “set”.

  As in the first embodiment, the information processing unit 122 stores the information specified by the request message received from the management server 20 in the interface management information storage of the storage unit 310 when the process is taken over from the operation determination processing unit 321. Extraction is performed from the area 111, the VLAN management information storage area 112, or the flow filter management information storage area 113, and a reply process is performed via the IF unit 130 described later.

  The command input processing unit 325 specifies information corresponding to the relay device 30 specified by the request message received from the management server 20 in the relay device management table 115a, and inputs the command specified by this request message.

  When the response processing unit 326 receives a result response from the relay device 30 that has input a command corresponding to the request message received from the management server 20 via the IF unit 130 described later, the response processing unit 326 returns a response corresponding to the result response. The data is generated in XML and transmitted to the management server 20 via the IF unit 130 described later.

  In addition, when the “type” attribute of the “operation” element of the request message received from the management server 20 is “set”, the response processing unit 126 sets the element name of the child element of the “operation” element to the request type management table. The information type column 316b of 316a is searched, and the internal retention valid flag column 316c of the searched element name is confirmed. If a character string “ON” is stored in the internal retention valid flag field 316c, the table update unit updates the table information corresponding to the element name to that specified in the request message. 127 is notified.

  Based on the request received from the management server 20, the table updating unit 127 specifies specific information of the table stored in the interface management information storage area 111, the VLAN management information storage area 112, or the flow filter management information storage area 113. Is stored, changed or deleted.

  The IF unit 130 is an interface for transmitting and receiving information via the network 50.

  The processing server 300 described above can also be realized by a general computer 900 as shown in FIG. 9, for example.

  For example, the storage unit 310 can be realized by the external storage device 903, and the control unit 320 can be realized by loading a predetermined program stored in the external storage device 903 into the memory 902 and executing it by the CPU 901. The IF unit 130 can be realized by the communication device 908.

  The predetermined program is downloaded from the storage medium 904 via the reading device 905 or from the network via the communication device 908 to the external storage device 903, and then loaded onto the memory 902 and executed by the CPU 901. You may do it. Further, the program may be directly loaded on the memory 902 from the storage medium 904 via the reading device 905 or from the network via the communication device 908 and executed by the CPU 901.

  As described above, in the present embodiment, since information stored in the processing server 300 can be controlled, “ON” or “OFF” in the internal retention valid flag column 316c of the request type management table 316a is appropriately changed. Thus, the information held in the processing server 300 can be changed as appropriate.

  FIG. 24 is a schematic diagram of the processing server 400 in the processing system according to the third embodiment of the present invention.

  Here, in the present embodiment, processing similar to that in the first embodiment is performed, and when the processing server 400 receives a “set-config” request message from the management server 20, Process to verify the validity of "set-config" request. The following describes items related to the process of verifying the validity of the “set-config” request.

  As illustrated, the processing server 400 includes a storage unit 410, a control unit 420, and an IF unit 130.

  The storage unit 410 of the processing server 400 includes an interface management information storage area 111, a VLAN management information storage area 112, a flow filter management information storage area 113, a relay device management information storage area 115, a verification information storage area 417, And is different from the first embodiment in that the verification information storage area 417 is provided, and therefore, items related to the different points will be described below.

  The verification information storage area 417 stores information for specifying a target to be verified by the verification unit 428 described later and a range to be verified.

  For example, the verification information storage area 417 stores a verification information table 417a as shown in FIG. 25 (schematic diagram of the verification information table 417a).

  The verification information table 417a includes a validity verification parameter column 417b and a uniqueness check content column 417c.

  The validity verification parameter column 417b stores information for specifying a target to be verified by the verification unit 428 described later. In the present embodiment, information for specifying a target (element) to be verified among the elements that are child elements of the “set-config” request “operation” element is stored.

  The uniqueness check content column 417c stores information for specifying a range to be verified for the target specified in the validity verification parameter column 417b.

  Returning to FIG. 24, the control unit 420 includes an operation determination processing unit 421, an information processing unit 122, a CLI conversion processing unit 123, an XSLT processor unit 124, a command input processing unit 125, a response processing unit 126, and a table. And an update unit 127.

  The operation determination processing unit 421 analyzes the request message received from the management server 20 via the IF unit 130 before performing the processing in the first embodiment, and the “type” attribute of the “operation” element is set to “set”. In the case of “-config”, processing is performed by the verification unit 428, and in other cases and when it is determined that the verification by the verification unit 428 is valid, processing similar to that of the first embodiment is performed.

  The verification unit 428 verifies the validity of the “set-config” request.

  In the present embodiment, the verification unit 428 determines whether or not the child element of the “operation” element is stored in the validity verification parameter column 417b in the verification information table 417a. It is verified using the VLAN management table 112a and the flow filter management table 113a whether or not the setting value of the child element is uniquely maintained within the range specified in the corresponding uniqueness check content column 417c.

  For example, if the “vlan” element is included in the child element of the “operation” element of the “set-config” request, it corresponds to the “VLAN name” in the validity verification parameter column 417b. The setting value of the “name” attribute of this “vlan” element is unique in “inside relay device” stored in the check content column 417c (in the line having the same relay device name as the relay device to be set) It is verified whether or not.

  In addition, if the “vlan_ipaddr” element is included in the child element of the “operation” element of the “set-config” request, it corresponds to “VLAN-IP address” in the validity verification parameter column 417b. It is verified whether the setting value of this “vlan_ipaddr” element is unique in “inside the system” (in the VLAN management table 112a) stored in the uniqueness check content column 417c.

  Furthermore, if the “vlan_id” element is included in the child element of the “operation” element of the “set-config” request, it corresponds to “VLANID” in the validity verification parameter field 417b. Whether or not the setting value of this “vlan_id” element is unique in “inside relay device” stored in the content column 417c (in the line having the same relay device name as the relay device to be set) Validate.

  Then, the verification unit 428 notifies the operation determination processing unit 421 of the verification result as described above. If the verification result is valid, the operation determination processing unit 421 is the same as in the first embodiment. If the processing is not valid, the operation determination processing unit 421 transmits information specifying the setting value to the effect to the management server 20 and ends the processing, and the management server 20 identifies the received information. Display in the format.

  The IF unit 130 is an interface for transmitting and receiving information via the network 50.

  The processing server 400 described above can also be realized by a general computer 900 as shown in FIG. 9, for example.

  For example, the storage unit 310 can be realized by the external storage device 903, and the control unit 320 can be realized by loading a predetermined program stored in the external storage device 903 into the memory 902 and executing it by the CPU 901. The IF unit 130 can be realized by the communication device 908.

  The predetermined program is downloaded from the storage medium 904 via the reading device 905 or from the network via the communication device 908 to the external storage device 903, and then loaded onto the memory 902 and executed by the CPU 901. You may do it. Further, the program may be directly loaded on the memory 902 from the storage medium 904 via the reading device 905 or from the network via the communication device 908 and executed by the CPU 901.

  As described above, in this embodiment, since the validity of the “set-config” request for setting static setting information in the processing server 400 can be verified, an incorrect setting is performed on the relay device 30. It will be less.

1 is a schematic diagram of a processing system according to a first embodiment. Schematic diagram of the management server. Schematic which shows the structure of an XML message. Schematic of a processing server. Schematic diagram of an interface management table. Schematic diagram of a VLAN management table. Schematic diagram of a flow filter management table. Schematic of a relay device management table. Schematic diagram of a computer. The sequence diagram which shows the process at the time of acquiring the setting information of a relay apparatus. The sequence diagram which shows the process at the time of setting to a relay apparatus. The sequence diagram which shows the process at the time of acquiring the information regarding a relay apparatus. The sequence diagram which shows the process at the time of setting the information regarding a relay apparatus. Schematic of a VLAN status display screen. Schematic of request message. Schematic of a VLAN addition screen. Schematic of request message. Schematic diagram of CLI command file. Schematic of request message. Schematic of VLAM statistics display screen. Schematic of request message. Schematic of the processing server in the processing system which is 2nd embodiment. Schematic diagram of a request type management table. Schematic of the processing server in the processing system which is 3rd embodiment. Schematic of a verification information table.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Processing system 20 Management server 30 Relay apparatus 100,300,400 Processing server 110,310,410 Storage part 120,320,420 Control part

Claims (20)

A processing device connected via a network to a management device that manages a relay device that relays data in the network,
A storage unit for storing specific information regarding the relay device;
An interface unit for transmitting and receiving information to and from the relay device and the management device;
A control unit,
The controller is
Processing for receiving an acquisition request for acquiring information about the relay device from the management device via the interface unit;
When the acquisition request is a request to acquire the specific information stored in the storage unit, a process of transmitting the specific information to the management device via the interface unit;
When the acquisition request is not a request for acquiring the specific information stored in the storage unit, the information about the relay device is acquired from the relay device, and the acquired relay device is related via the interface unit. Processing for transmitting information to the management device;
The processing apparatus characterized by performing. The processing apparatus according to claim 1,
The controller is
A process of receiving a setting request for setting the relay device from the management device via the interface unit;
A process for causing the relay device to execute the setting specified in the setting request;
When the setting request is a request to process the specific information, a process of changing the specific information stored in the storage unit to one that has been processed by the setting request;
The processing apparatus characterized by performing. The processing apparatus according to claim 1,
The processing apparatus according to claim 1, wherein the specific information is unchanged unless a setting request for setting the relay apparatus is made. The processing apparatus according to claim 1,
The controller is
Determining that the acquisition request is a request to acquire the specific information when the acquisition request includes predetermined identification information;
A processing apparatus characterized by the above. The processing apparatus according to claim 1,
The storage unit includes an information type, and internal holding information that specifies whether the acquisition request is a request for acquiring the specific information when the information type is included in the acquisition request. It is stored for each information type,
The controller is
When the information type is included in the acquisition request received from the management device, the internal holding information identifies whether the acquisition request is a request to acquire the specific information;
A processing apparatus characterized by the above. The processing apparatus according to claim 2,
The controller is
Determining that the setting request is a request for processing the specific information when the setting request includes predetermined identification information;
A processing apparatus characterized by the above. The processing apparatus according to claim 2,
The storage unit includes an information type, and internal holding information that specifies whether the setting request is a request for processing the specific information when the information type is included in the acquisition request. It is stored for each information type,
The controller is
If the information type is included in the acquisition request received from the management device, the internal holding information identifies whether the setting request is a request to process the specific information;
A processing apparatus characterized by the above. The processing apparatus according to claim 1,
The processor is
Even when the acquisition request is a request for acquiring the specific information stored in the storage unit, when a predetermined time has elapsed since the storage of the specific information, Acquiring the specific information from the relay device, and transmitting the acquired specific information to the management device via the interface unit;
A processing apparatus characterized by the above. The processing apparatus according to claim 2,
In the storage unit, information for specifying a parameter and range information for specifying a range of the specific information for determining the parameter are stored for each parameter,
The processor is
When the setting information includes the parameter, the specific information is searched in a range specified by the range information corresponding to the parameter, and it is determined whether information matching the parameter is included. thing,
A processing apparatus characterized by the above. A program that causes a computer to function as a processing device connected to a management device that manages a relay device that relays data in a network,
The computer,
Storage means for storing specific information about the relay device;
Interface means for transmitting and receiving information to and from the relay device and the management device;
Function as a control means,
The control means includes
Processing for receiving an acquisition request for acquiring information about the relay device from the management device via the interface means;
When the acquisition request is a request for acquiring the specific information stored in the storage unit, a process of transmitting the specific information to the management device via the interface unit;
When the acquisition request is not a request for acquiring the specific information stored in the storage unit, the relay unit acquires information about the relay unit from the relay unit, and the acquired relay unit is related to the acquired relay unit via the interface unit. Processing for transmitting information to the management device;
The program characterized by performing. The program according to claim 10,
The control means includes
Processing for obtaining a setting request for setting the relay device from the management device via the interface means;
A process for causing the relay device to execute the setting specified in the setting request;
When the setting request is a request to process the specific information, a process of changing the specific information stored in the storage unit to a process in which the process specified by the setting request has been performed;
The program characterized by performing. The program according to claim 10,
The specific information is information that does not change unless a setting request for setting the relay device is made. The program according to claim 10,
The control means includes
Determining that the acquisition request is a request to acquire the specific information when the acquisition request includes predetermined identification information;
A program characterized by The program according to claim 10,
The storage means includes an information type and internal holding information that specifies whether the acquisition request is a request for acquiring the specific information when the information type is included in the acquisition request. It is stored for each information type,
The control means includes
When the information type is included in the acquisition request received from the management device, the internal holding information identifies whether the acquisition request is a request to acquire the specific information;
A program characterized by The program according to claim 11,
The control means includes
Determining that the setting request is a request for processing the specific information when the setting request includes predetermined identification information;
A program characterized by The program according to claim 11,
The storage means includes an information type and internal holding information that specifies whether the setting request is a request for processing the specific information when the information type is included in the acquisition request. It is stored for each information type,
The control means includes
If the information type is included in the acquisition request received from the management device, the internal holding information identifies whether the setting request is a request to process the specific information;
A program characterized by The program according to claim 10,
The processing means includes
Even when the acquisition request is a request for acquiring the specific information stored in the storage unit, when a predetermined time has elapsed since the storage of the specific information, Acquiring the specific information from the relay device, and transmitting the acquired specific information to the management device via the interface unit;
A program characterized by The program according to claim 11,
In the storage means, information for specifying a parameter and range information for specifying a range of the specific information for determining the parameter are stored for each parameter,
The processing means includes
When the setting information includes the parameter, the specific information is searched in a range specified by the range information corresponding to the parameter, and it is determined whether information matching the parameter is included. thing,
A program characterized by A storage unit connected to a management device that manages a relay device that relays data in the network, stores specific information about the relay device, and an interface unit that transmits and receives information to and from the relay device and the management device; A processing method performed by a processing device including a control unit,
The control unit receives an acquisition request for acquiring information about the relay device from the management device via the interface unit;
When the control unit transmits the specific information to the management device via the interface unit when the acquisition request is a request to acquire the specific information stored in the storage unit; ,
When the acquisition request is not a request for acquiring the specific information stored in the storage unit, the control unit acquires information on the relay device from the relay device, and acquires the information via the interface unit. Transmitting information related to the relay device to the management device;
A processing method comprising: The processing method according to claim 19, wherein
The control unit acquires a setting request for setting the relay device from the management device via the interface unit;
A process in which the control unit causes the relay device to execute a setting specified by the setting request;
When the setting request is a request for processing the specific information, the control unit performs processing for specifying the specific information stored in the storage unit by the setting request. Change process,
The processing method characterized by performing.

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