JP5118577B2 - Command input device, command input system, command input method and program thereof - Google Patents

Description

  The present invention relates to a command input technique for setting a configuration in an IP (Internet Protocol) network composed of a plurality of devices from different vendors.

The conventional system targets a communication network consisting of devices from a single vendor, and because the service menu and user scale were small, a session with the router was established each time a command for configuration setting was entered. It was.
NTT Technology Journal, “Service Activation Technology that Supports Network Services”, [online], [Search June 24, 2008], Internet, <URL: http://www.ntt.co.jp/journal/0508 /files/jn200508018.pdf> Shimizu et al., "Prototype configuration creation test function of transfer device for next generation network", Institute of Electronics, Information and Communication Engineers TM Study Group, IEICE Technical Report, Jul. 2007

  In the future NGN (Next Generation Network), the frequency of command input for remote configuration setting to a router or the like constituting a communication network increases with the expansion of the user scale and the diversification of service menus. In addition, when performing command input processing in the order of several hundreds of thousands per day, session establishment and disconnection with the router each time may not be in time, and command input efficiency is poor. . In view of the above, an object of the present invention is to solve the above-described problem and to efficiently input a command for setting a configuration.

In order to solve the above-described problem, the invention according to claim 1 is a command input device for inputting a command to one or more devices installed in a communication network, and includes a command input device to the device from an external device. An input unit that accepts input, a queue output unit that classifies the input command into a conflict command that competes when parallel processing is performed on the same device, and a non-contention command that is a command other than the conflict command, and a classified conflict A first queue unit that stores a command as a queue for each input destination device, a queue unit that includes a second queue unit that stores classified non-contention commands as a queue, and the input destination in the first queue unit transfer and control unit, competitive command for outputting the respective non-competitive command stored in the competitive command and the second cube is stored for each device to the transfer section And a transfer unit of each non-competitive command outputs to the session control unit, the identification information of the session established between the device, the identification information of the device connected by the session, whether a session is either being established and A storage unit that stores session management information indicating whether or not a command is being processed by the session, and a session management information with reference to the session management information and a device that is a destination of each of the conflicting command and the non-conflicting command A session that is not being processed is selected from the sessions that have been established in between. The transfer control unit is instructed to input a conflicting command and a non-conflicting command using the selected session, and the session control unit notifies. Updated session state information in the session management information A session management unit which performs establishment and disconnection of a session with the device, using the session designated by the session manager, respectively competitive command and non-competitive command is output from the transfer unit, and the submission destination And a session control unit for notifying the session management unit of the session state of the session, and when the transfer control unit outputs a contention command from the first queue unit , the session management unit With reference to this, it is determined whether or not command processing is being performed in the device to which the contention command is input, and when the command processing is not being performed in the device, the contention command is output to the transfer unit to the transfer control unit. When instructing and selecting a session to be used for submitting a non-conflicting command, refer to the session management information. When a session being established with a device to which a non-contention command is to be input is in command processing, a new session is established with the device to which the non-contention command is to be input to the session control unit. instruct, using the established session, characterized in that an instruction to put the non-competitive command.

Invention of claim 6, a command is turned for the commands dosing device for introducing commands to one or more devices to be installed in the communication network, command turned device, a session between each device A step of establishing, a step of receiving an input of a command to be input to the device from an external device, a conflicting command that competes when the input command is processed in parallel in the same device, and a non-conflict that is a command other than the conflicting command A step of classifying the command into a command, a step of storing the classified competing command as a queue for each input destination device, and a step of storing the classified non-conflicting command as a queue in the second queue unit. The identification information of the session established with the device, the identification information of the device connected by this session, and whether the session is being established And the session management information indicating whether or not command processing by this session is in progress, and determines whether or not command processing is in progress at the device to which the conflicting command is input, when it is not the medium, retrieving a conflict command stored in the first queue unit, retrieving the non-competitive command stored in the second queue unit, by referring to the session management information, competitive command and from among the session being established between the non-competitive command each submission destination device serving to select the not in command processing session using the selected sessions, competitive command to the projection authorized service provider device and a step of turning on the respective non-competitive command, referring to the session management information, the non-competitive command When a session that is being established with the device that is the entry destination is processing a command, a new session is established with the device that is the destination of the non-contention command, and the established session is used. And a step of inputting a non-contention command .

In this way, when a command input device inputs a command to a device (communication device such as a router) installed in the communication network, the command input device inputs using a session already established with this device. Therefore, the command input device does not need to disconnect the session each time a command is input, and the command input can be performed efficiently.
In addition, by doing this, the command input device can use a conflict command (a configuration command to be input in configuration mode) and a non-conflict command (a reference command such as show or a test command such as ping or traceroot). Command) and stored in different queues. Then, the command input device inputs the contention command stored in the contention command queue part after the command processing of the previous contention command is completed in the device to which the contention command is input. Therefore, since the competing command is not processed in parallel in this apparatus, it becomes easy to analyze the cause when an error occurs by inputting this command.

According to a second aspect of the present invention, in the command input device according to the first aspect, when the session management unit selects a session to be used for the input of the conflicting command and the non-conflicting command , the session management information is referred to, and when there was no session being established is between the competing commands each submission destination device serving, the session control unit instructs to establish a new session between the the projection authorized service provider device, and the establishment It is characterized by instructing to input a competing command and a non-conflicting command using a session.

In this way, a command entry device, also can that no session in established between the submission destination device serving for this command to establish a session to the device, to be put command it can.

Claim 3 is, in a command entry device according to claim 2, the session management unit, when selecting a session for use in the respective competing commands and non-competitive command turned by referring to the session management information, competitive command and non If there is no session established with the device that is the destination of each conflicting command , or if the device that is the destination of the non-conflicting command is in command processing, its own command input device is already when a session can be established maximum number of sessions is established between the respective devices, the session control unit, from among the established session between the projecting authorized service provider apparatus, and ends the command processing a disconnected session are, when there was no session in established between the submission destination device serving, Oyo conflict command Instructed to establish a new session with the non-competitive command each submission destination device serving, when non-competitive command submission destination to become device is in the command processing, the submission destination of the non-competitive command instructed to establish a new session with the device, using the established session, characterized in that an instruction to put the respective competitive command and non-competitive command.

  In this way, the command input device can input commands efficiently with a limited number of sessions.

Claim 4 is, in a command entry device according to claim 1, each first queue part and the second queue of the queue unit, respectively competitive command and non-competitive command is inputted, for each priority degree divided has a queue that stores the transfer control unit, characterized in that retrieving the respective priority compete commands and non-competitive command from a higher-priority queue section queue.

In this way, a command entry device, among the commands on target, for a typical command by remote priority should be given command (emergency command) can be preferentially introduced commands.

A fifth aspect of the present invention provides a command input system including the command input device according to any one of claims 1 to 4 and a plurality of devices that receive input of commands from the command input device. .

By doing so, it is possible to realize a system including the command input device according to any one of claims 1 to 4 and a plurality of devices that accept input of commands from the command input device.

Claim 7 is a program for causing a command input device, which is a computer, to execute the command input method according to claim 6 .

In this way, it is possible to cause a general computer to execute the command input method according to claim 6 .

  ADVANTAGE OF THE INVENTION According to this invention, the command for a configuration to the apparatus which comprises a network can be performed efficiently.

<Overview>
Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described. FIG. 1 is a diagram showing a configuration example of a command input system according to the present embodiment. The command input system receives the host system 30 (30A, 30B, 30C) that outputs a command file for configuration to the router (device) 20 and the command file from the host system 30, and inputs the command to the router 20. A command input device 10 and a router 20 (20A, 20B, 20C) which is a device to which the command is input are configured. The host system (external device) 30 is realized by, for example, a computer that outputs a command file for configuration to the command input device 10. The router 20 is a router installed in a communication network such as an IP network.

  In the present embodiment, commands included in the command file output from the host system 30 are classified into the following three types. (1) Configuration commands: general commands entered in configuration mode, (2) Reference commands: commands such as show mainly submitted in privileged mode, (3) Test commands: ping also entered mainly in privileged mode Commands such as and traceroot.

  Here, (1) the setting system command makes it difficult to analyze the cause of an error when an error occurs when a plurality of commands are processed in parallel by the same router 20. Therefore, this (1) setting command is handled as a conflict command in the present embodiment. The (2) reference command and (3) test command do not cause an error analysis problem when a plurality of commands are processed in parallel in the same router 20. Therefore, this (2) reference command and (3) test command are treated as non-competing commands. Further, since each command includes an emergency command and other commands (normal commands), the emergency command is handled as a command with a high priority, and the normal command is handled as a command with a low priority.

  Here, the operation outline of the command input system will be briefly described. Here, it is assumed that the command input device 10 has already established a session with the router 20 (20A to 20C) by the session control unit 125. The session management information 131 records with which router 20 each session has been established, whether the session is being established or disconnected, and whether or not command processing by the command is completed at the connection destination router 20. Suppose you are.

  First, the command input device 10 receives an input of a command file from the host system 30. The queue unit 122 of the command input device 10 includes a contention command queue unit (first queue unit) 1221 and a non-contention command queue unit (second queue unit) 1222. Note that the contention command queue unit 1221 is prepared for each router 20 as a command input destination. That is, the contention command queue unit 1221 is prepared for each of the routers 20A, 20B, and 20C.

The queue output unit 121 classifies the conflicting commands among the commands included in the received command file for each router 20 that is the destination of the conflicting command. Then, the classified commands are stored in the conflicting command queue unit 1221 for the router 20 that is the input destination of the command. Further, the queue output unit 121 stores the non-contention command in the non-contention command queue unit 1222. Note that when storing in the non-contention command queue unit 1222, the router 20 as the input destination is not particularly considered. That is, the non-contention command queue unit 1222 may store commands with different input destinations.
Further, it is assumed that the conflicting command queue unit 1221 and the non-competing command queue unit 1222 classify and store commands with high priority such as emergency commands and commands with low priority such as normal commands.

  Thereafter, the transfer control unit 126 takes out the commands accumulated in the contention command queue unit 1221 and the non-contention command queue unit 1222 and outputs them to the transfer unit 123. Then, the transfer unit 123 outputs this command to the session control unit 125. At this time, the session management unit 124 refers to the session management information 131 indicating the session state between the command input device 10 and the router 20 (20A to 20C), and the session control unit 125 uses the session to input a command. Sort out. Here, the session management unit 124 selects a session that has already been established with the router 20 that is the command input destination for the command extracted by the transfer control unit 126 and is not being processed by the command. Then, the session management unit 124 instructs the session control unit 125 to input a command using the selected session. That is, the command input device 10 does not connect / disconnect a session with the router 20 each time a command is input, but once a session is established with the router 20, a command is input using that session as much as possible. Do. As a result, the number of session connections and disconnections for inputting commands can be reduced, so that commands can be input efficiently.

  The contention command queue unit 1221 is prepared for each router 20 connected to (or possibly connected to) the command input device 10, and the transfer control unit 126 performs command processing in the router 20. After confirming that the command is completed, the command (contention command) of the contention command queue unit 1221 of the router 20 is output to the transfer unit 123. In this way, the command input device 10 can avoid parallel processing of conflicting commands in the same router 20.

  In addition, the commands stored in the conflicting command queue unit 1221 and the non-competing command queue unit 1222 are divided according to the commands, and the transfer control unit 126 obtains commands preferentially from commands with higher priority, The command input device 10 can input an emergency command or the like to the router 20 with priority.

<Configuration>
Next, the configuration of the command input device 10 will be described in detail. The command input device 10 is divided into an input unit 11, a processing unit 12, a storage unit 13, and an output unit 14.

  The input unit 11 receives one or more commands from the host system 30 in a file format. The processing unit 12 controls the entire command input device 10 and mainly establishes and disconnects a session with the router 20 and selects a session used for command input. The storage unit 13 stores session management information 131 that is referred to when this session is selected. The output unit 14 outputs a command to the router 20.

  The input unit 11 and the output unit 14 include an input / output interface for inputting / outputting data to / from an external device (the host system 30 or the router 20). The processing unit 12 is realized by a program execution process by a CPU (Central Processing Unit) included in the command input device 10 or a dedicated circuit. Further, the storage unit 13 includes a storage medium such as a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), and a flash memory. When the command input device 10 is realized by a program execution process, the storage unit 13 stores a program for realizing the function of the command input device 10.

  Here, a command file received by the command input device 10 will be described. FIG. 2 is a diagram illustrating a command file received by the command input device of FIG. As shown in FIG. 2, the command file includes a router ID (for example, an IP (Internet Protocol) address) of the router 20 that is a command input destination, a command type, and one or more commands. Two command types are indicated here (command types 1 and 2). For example, the command type 1 indicates whether the command is an emergency command or a normal command, a setting command, a reference command, or a test command. The command type 2 is shown. For example, the command file shown in FIG. 2 inputs commands “aaaaaaaaa” and “bbbbbbbbb” to the router 20 with the IP address “10.10.10.11”. ) ”Indicates“ setting system (setting system command) ”. The command shown in this command file is, for example, a CLI (Command Line Interface) command.

  The input unit 11 shown in FIG. 1 receives the command file input from the host system 30 and outputs it to the processing unit 12.

  The processing unit 12 includes a queue output unit 121, a queue unit 122 including a contention command queue unit 1221 and a non-contention command queue unit 1222, a transfer unit 123, a session management unit 124, a session control unit 125, and a transfer control unit. 126.

  The queue output unit 121 determines whether the command included in the command file input via the input unit 11 is a conflict command (setting command) or a non-competition command (reference command or test command). If this command is a conflict command, the router ID of the router 20 to which the conflict command is input is read and stored in the conflict command queue unit 1221 for this router 20. That is, the conflicting commands are classified for each router 20 as the input destination and stored in the conflicting command queue unit 1221 for the router 20. On the other hand, if the command is a non-contention command, it is stored in the non-contention command queue unit 1222 regardless of the submission destination router 20. If this command (conflicting command or non-competing command) is an urgent command, it is stored in a block for a command having a high priority in each queue unit (the competing command queue unit 1221 and the non-competing command queue unit 1222). To do. Here, the priority is divided and stored depending on the emergency command or other command (normal command), but the priority may be stored in three or more stages depending on the type of the command. In this case, it is assumed that queues (blocks) corresponding to the number of priority levels are prepared in advance.

  The queue unit 122 includes a contention command queue unit 1221 that stores contention commands (competition command queues) in a predetermined area, and a non-contention command queue unit 1222 that stores non-contention commands (non-contention command queues).

  As described above, the contention command queue unit 1221 is prepared for each router 20 that is a command input destination. As described above, the conflicting commands are stored in separate blocks for each of the routers 20 as the input destinations. This command input device 10 needs to avoid having the same router 20 process a plurality of conflicting commands in parallel. Because there is.

  As described above, the contention command queue unit 1221 and the non-contention command queue unit 1222 divide a block into a command having a higher priority such as an emergency command and a command having a lower priority than the emergency command such as a normal command. Store. By doing in this way, the transfer unit 123 can transfer the emergency command having a high priority to the router 20 with priority over other commands. The queue unit 122 is formed on a semiconductor memory such as a RAM provided in the command input device 10, for example.

  The transfer unit 123 outputs the command (command queue) extracted by the transfer control unit 126 described later to the session control unit 125.

  The session management unit 124 records session state information indicating the state of the session established between the session control unit 125 and the router 20 in the session management information 131. Then, with reference to this session management information 131, the session control unit 125 is instructed to distribute sessions used for command input and to establish and disconnect sessions. The session management unit 124 sets the number of sessions established with each router 20 to be equal to or less than the preset maximum number of sessions. In addition, the session management unit 124 notifies the transfer control unit 126 of a command processing completion message received from the session control unit 125 by inputting a command (contention command) to the router 20. Thereby, the transfer control unit 126 can know that the contention command to the router 20 may be output to the transfer unit 123. Details of the session management information 131 recorded by the session management unit 124 will be described later with reference to FIG.

  The session control unit 125 establishes and disconnects a session with the router 20 and inputs a command using the established session based on an instruction from the session management unit 124. Further, when session establishment / disconnection or command input is performed, or when command processing is completed in the input destination router 20 after the command input, the state is output to the session management unit 124 as session state information.

  The transfer control unit 126 outputs the command extracted from the queue unit 122 to the transfer unit 123. Here, when the transfer control unit 126 extracts a conflict command from the conflict command queue unit 1221, it is not after the command processing by the conflict command is completed in the router 20 to which the extracted conflict command is input. The session management unit 124 limits the contention command not to be output to the transfer unit 123. As a result, the command input device 10 can avoid inputting the next conflict command even though the processing by the previous conflict command is not completed in the same router 20. Note that the session management unit 124 refers to the session management information 131 to determine whether or not the command processing is completed in the router 20 to which the conflicting command is input.

  The storage unit 13 stores the session management information 131 described above. The session management information 131 is information indicating the state of a session established with the router 20. FIG. 3 is a diagram illustrating the session management information of FIG. As shown in FIG. 3, the session management information 131 records, for each session ID, the router ID of the router 20 connected by the session, the command type of the input command, the session state, the session connection time, and the like. For example, in the session management information 131 shown in FIG. 3, the session with the session ID “10010011001” is a session established with the router 20 with the router ID “10.10.10.11”. (Conflict command) ”is input, indicating that“ processing (command processing) ”is being performed by this command, and that the session connection time is“ 30 (s) ”. The session management information 131 further includes information on the total number of sessions established with the router 20 and the maximum number of sessions established by the command input device 10. The session management information 131 is referred to when the session management unit 124 selects a session used for command input.

  The output unit 14 in FIG. 1 inputs the command output from the session control unit 125 to the router 20.

<Processing procedure>
Next, the processing procedure of the command input device 10 will be described with reference to FIG. FIG. 4 is a flowchart showing a processing procedure of the command input device of FIG. Here, it is assumed that the command input device 10 has already established a predetermined number of sessions equal to or less than the maximum number of sessions with the router 20 and has recorded the state of the established sessions in the session management information 131.

  First, the input unit 11 of the command input device 10 of FIG. 1 receives an input of a command file from the host system 30 (S101). Then, the input unit 11 outputs this command file to the queue output unit 121. Next, the queue output unit 121 classifies one or more commands included in the command file (S102) and outputs them to the queue unit 122 (S103). That is, the queue output unit 121 determines whether the command included in the command file is a conflict command (setting command) or a non-conflict command (reference command or test command). If this command is a conflict command, the router ID of the router 20 to which the conflict command is input is read and stored in the conflict command queue unit 1221 for this router 20. On the other hand, if the command is a non-contention command, it is stored in the non-contention command queue unit 1222 regardless of the submission destination router 20. If this command (conflicting command and non-conflicting command) is an urgent command, it is stored in a block for a command having a high priority in each queue section (the competing command queue section 1221 and the non-conflicting command queue section 1222). To do.

  When a queue of commands is formed in the queue unit 122 in this way, the transfer control unit 126 extracts commands from the queue unit 122 (the contention command queue unit 1221 and the non-contention command queue unit 1222), and the extracted command Is output to the transfer unit 123. Then, the transfer unit 123 outputs this command to the session control unit 125.

  Here, the session management unit 124 refers to the session management information 131 and determines that a command (conflict command) that conflicts with the command acquired by the transfer control unit 126 is being processed in the router 20 to which the command is input. It is determined whether or not there is (S104). If there is a session being processed (Yes in S104), it is determined whether or not the contention command processing has been completed in the router 20 connected by the session (S105). If the competing command processing has been completed (Yes in S105), the process proceeds to S107. On the other hand, if the conflict command processing has not been completed (No in S105), after waiting for a predetermined time (S106), the process returns to S105 to determine again whether or not the conflict command processing has been completed.

  Next, the session management unit 124 refers to the session management information 131 and establishes a session with the router 20 to which this command is input, and there is a session that is not being processed in the established session. It is determined whether or not there is (S107). Here, referring to the session management information 131, when a session is being established with the router 20 to which this command is input, and there is a session in which the command is not being processed (Yes in S107). ), The session management unit 124 instructs the transfer control unit 126 to output the command acquired from the queue unit 122 to the transfer unit 123. Then, the transfer unit 123 outputs this command to the session control unit 125.

  Thereafter, the session control unit 125 inputs this command to the router 20 using the session selected by the session management unit 124 (S111). Then, the session management unit 124 records in the session management information 131 that a command has been input using the session, and updates the session management information 131 (S112). After that, when the session management unit 124 receives a message indicating that the command processing is completed from the router 20 that is the command input destination via the session control unit 125, the session management unit 124 stores the session of the session management information 131 based on the message. The state information is rewritten to “processing completed” and the session management information 131 is updated.

  In S107, when the session management unit 124 refers to the session management information 131 and determines that there is no session established with the router 20 that is the command input destination, or there is an established session. However, when it is determined that the command is being processed by the session (No in S107), it is determined whether or not there is an idling session resource (session resource in which no router 20 has established a session) with the router 20. (S108). That is, the session management unit 124 determines whether there is a disconnected session in the session management information 131. If there is an idling session resource (Yes in S108), the session management unit 124 instructs the session control unit 125 to establish a session with the router 20 that is the input destination of this command (S110). When the session is successfully established, the session management unit 124 records the session establishment in the session management information 131. Thereafter, the session control unit 125 inputs a command to the router 20 using the established session (S111).

  On the other hand, in S108, if there is no idling session resource (No in S108), the session management unit 124 refers to the session management information 131, and among the established sessions, the command processing is performed in the router 20 to which the session is connected. A session that is not in the middle is selected, and the session control unit 125 is instructed to disconnect this session (S109). When the session management unit 124 confirms the disconnection of the session, the process proceeds to S110. That is, the session management unit 124 instructs the session control unit 125 to establish a new session with the router 20 to which the command is input, and when the session establishment is confirmed, the session is input using this session. (S111).

  In S109, the session to be disconnected is selected in the session management information 131. If there are a plurality of sessions that are not in command processing among the sessions that are being established, the session with the longest connection time is selected. It is preferable to select. In this way, the connection time between sessions can be leveled as much as possible.

  The command input device 10 can efficiently input commands output from the host system 30 to the router 20 by performing session control as described above.

<Specific example>
Next, a specific example of command input processing by the command input device 10 will be described. FIG. 5 is a diagram showing an example of command input processing by the command input device of FIG.

  An example in which the command input device 10 in FIG. 1 establishes a maximum of four sessions with three routers 20 (20A to 20C) and inputs commands to the router 20 will be described as an example. Here, the commands to be input to the router 20A by the command input device 10 are the commands 1, 4 and 6, the command to be input to the router 20B is the command 2, and the commands to be input to the router 20C are the commands 3 and 5 , 7. Of these, commands 1, 4 and 7 are non-competing commands, and commands 2, 3, 5 and 6 are competing commands. The command input device 10 inputs commands to the router 20 in the order of commands 1, 2, 3, 4, 5, 6, and 7.

  First, the command input device 10 receives an input of a command file from the host system 30. Then, the queue output unit 121 classifies the commands included in the command file and stores them in the queue unit 122. When the transfer control unit 126 extracts a command from the queue unit 122, the session management unit 124 reads the router ID of the input destination of the command. When the session management unit 124 refers to the session management information 131 and determines that there is no session established with the destination router 20, the session management unit 124 informs the session control unit 125 with the router 20. To establish a session.

  Here, since the sessions with the routers 20A to 20C to which the commands 1 to 4 are input are not established, the session management unit 124 has a session with the router 20A for inputting the command 1 to the session control unit 125. A, a session B with the router 20B for inputting the command 2, a session C with the router 20C for inputting the command 3, and a session D with the router 20A for inputting the command 4 are instructed. As described above, since the maximum number of sessions is four, the establishment request for the fifth session is not performed.

  The session control unit 125 of the command input device 10 makes such a session establishment request to the routers 20A, 20B, and 20C. When the session control unit 125 receives a session establishment response from the routers 20A, 20B, and 20C, the session control unit 125 inputs commands 1 to 4 to the routers 20A to 20C using the established session. I do.

  The routers 20A to 20C notify the command input device 10 of a message to that effect when the command input is completed (or when the setting process by this command is completed). Here, the command input device 10 is to input the command 5 to the router 20C after the command 4, but since the command 5 is a conflict command, the processing of the command 3 is completed from the router 20C. It can only be entered after receiving a message to that effect. That is, after the time indicated by reference numeral 501, the command input device 10 is ready to input the command 5.

  After the command input device 10 receives a message indicating that the processing of the command 3 is completed from the router 20C, the session management unit 124 refers to the session management information 131 and is established with the router 20C. The session control unit 125 inputs the command 5 using the session C. For the command 6 subsequent to the command 5, the session management unit 124 refers to the session management information 131 and confirms that the conflicting command is not being processed in the router 20A, and establishes it with the router 20A. Session A is used.

  Next, the command input device 10 attempts to input the command 7 to the router 20C. However, at the time indicated by reference numeral 502, since the session C is still being set by the command 5 in the router 20C, Cannot be used to submit commands. Therefore, the session management unit 124 refers to the session management information 131 and searches for an idling session resource. Here, as shown in FIG. 5, the command input device 10 has already established four sessions, and there is no idling session resource. Therefore, the session management unit 124 refers to the session management information 131, and among the sessions for which command processing has already been completed in the router 20, the session (session B) with the longest connection time is input to this command 7. Select as session to use. Then, the session management unit 124 instructs the session control unit 125 to disconnect this session B. In response to this, the session control unit 125 requests the router 20B to disconnect the session B. When the session control unit 125 confirms the disconnection of the session B, this time, a request for establishing a new session (session E) is issued with the router 20C. Do. When a session establishment response is received from the router 20C, the session control unit 125 inputs the command 7 to the router 20C using the established session E.

  Note that the command input device 10 may perform a time-out process for disconnecting the session when a predetermined time elapses after the command input is completed after establishing a session with the routers 20A to 20C in this way.

  In this way, the command input device 10 can efficiently input commands to the router 20 by effectively using a limited number of sessions. Further, since parallel processing is possible for non-competing commands and parallel processing is not performed for the competing commands in the router 20, it is easy to analyze the cause of an error when an error occurs due to the input of the competing command to the router 20. Become.

  In the above-described embodiment, the command input device 10 is described as mainly inputting commands to the router 20, but may be applied to command input to devices other than the router 20.

  The command input device 10 according to the present embodiment can be realized by a program for executing the processing as described above, and the program is stored in a computer-readable storage medium (CD-ROM or the like) and provided. It is also possible.

It is the figure which showed the example of a structure of the command input system of this Embodiment. It is the figure which illustrated the command file which the command input device of FIG. 1 receives. It is the figure which illustrated the session management information of FIG. It is the flowchart which showed the process sequence of the command input apparatus of FIG. It is the figure which showed the example of the command input process by the command input apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Command input device 11 Input part 12 Processing part 13 Storage part 14 Output part 20 (20A, 20B, 20C) Router 30 Host system 121 Queue output part 122 Queue part 123 Transfer part 124 Session management part 125 Session control part 125 Transfer part 126 Transfer control unit 131 Session management information 1221 Contention command queue unit 1222 Non-contention command queue unit

Claims (7)

A command input device for inputting commands to one or more devices installed in a communication network,
An input unit for receiving an input of a command to be input to the device from an external device;
A queue output unit that classifies the input command into a competing command that competes when parallel processing is performed in the same device, and a non-conflicting command that is a command other than the competing command;
A queue unit comprising: a first queue unit that stores the classified contention command as a queue for each input destination device; and a second queue unit that stores the classified non-contention command as a queue ;
A transfer control unit that outputs the contention command stored in the first queue unit for each of the input destination devices and the non-contention command stored in the second cube to a transfer unit;
And the transfer unit for outputting each of the competitive command and the non-competitive command to the session control unit,
Identification information of a session established with the device, identification information of a device connected by the session, a session state indicating whether the session is being established and whether a command is being processed by the session; A storage unit for storing session management information indicating
With reference to the session management information, a session that is not being processed by the command is selected from among the sessions that are established with the devices to which the contention command and the non-contention command are input, and the selected session A session for instructing the transfer control unit to input each of the contention command and the non-contention command using, and updating the session state information of the session management information using the session state notified by the session control unit The management department,
Establish and disconnect a session between said device, using the session designated by the session manager, each said contention command and the non-competitive command output from the transfer unit, the submission destination becomes charged to the apparatus, the session state of the session and a the session control unit for notifying the session management unit,
The session management unit
When the transfer control unit outputs the contention command from the first queue unit, the session management information is referred to determine whether or not command processing is being performed in the device to which the contention command is input, When the command is not being processed in the apparatus, the transfer control unit is instructed to output the contention command to the transfer unit,
When selecting a session to be used for inputting the non-contention command, referring to the session management information, when a session established with the device to which the non-contention command is input is in command processing, Instructing the session control unit to establish a new session with the device to which the non-contention command is to be input, and using the established session to instruct the non-contention command to be input Command input device. The session management unit
When selecting a session to be used for input of each of the contention command and the non-contention command , the session management information is referred to, and is being established with the device that is the input destination of each of the contention command and the non-contention command . when the session was not,
To the session control unit instructs to establish a new session with the the previous Kito authorized service provider apparatus, instructs by using the established session, to put each of the competitive command and the non-competitive command a command entry device according to claim 1, characterized in that. The session management unit
When selecting a session to be used for input of each of the contention command and the non-contention command , the session management information is referred to, and is being established with the device that is the input destination of each of the contention command and the non-contention command . When there is no session, or when the device to which the non-contention command is input is in the process of a command, the session with the maximum number of sessions that can be established by its command input device is already When established with
To the session control unit, out of the session established between the the front Kito authorized service provider device, a disconnected session has finished the command processing, established between the submission destination device serving In the case where there is no session in progress, an instruction is given to establish a new session with the device to which the contention command and the non-contention command are input, and the device to which the non-contention command is input is a command Instructs to establish a new session with the device to which the non-contention command is to be input when processing is in progress, and inputs each of the contention command and the non-contention command using the established session a command entry device according to claim 2, characterized in that an instruction to. For each of the first queue portion and the second queue portion of the queue portion,
The competitive command and the being the input of each non-competitive command, has a queue for storing separately for each priority level,
The transfer control unit
The command input device according to claim 1 , wherein each of the contention command and the non-contention command is preferentially extracted from a queue having a high priority of the queue unit. And a command entry device according to any one of claims 1 to 4, a command entry system which comprises a plurality of the apparatus which accepts the insertion of commands from the command dosing device. A command input method of a command input device that inputs commands to one or more devices installed in a communication network,
Before Kiko command throwing device,
Establishing a session with each of the devices;
Receiving an input of a command to be input to the device from an external device;
Classifying the input command into a competing command that competes when parallel processing is performed in the same device and a non-conflicting command that is a command other than the competing command;
Storing the classified competing commands as queues for each input device in the first queue unit, and storing the classified non-conflicting commands as a queue in the second queue unit;
Identification information of a session established with the device, identification information of a device connected by the session, session state information indicating whether the session is being established and whether a command is being processed by the session, Is stored in the first queue unit when the command is not being processed in the device. Retrieving the conflicting command;
Retrieving the non-contention commands stored in the second queue portion ;
Refer to the previous xenon cushion management information, the conflict command and the out of session being established between the non-competitive command each submission destination device serving to select the not in command processing session, this selection the steps of: by using the session and predose respectively Kito authorized service provider to become the to device conflict command and the non-competitive command,
Referring to the session management information, when a session being established with the non-conflicting command input destination device is under command processing, a new connection is established with the non-conflicting command input destination device. Establishing a session and using the established session to submit the non-conflicting command;
A command input method characterized by executing. A program for causing the command input device, which is a computer, to execute the command input method according to claim 6 .

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