JP5149932B2 - Order placing device, order placing method and program thereof - Google Patents

Description

  The present invention relates to a technology for placing an order in an apparatus constituting an IP (Internet Protocol) network.

  With the expansion of communication infrastructure, the number of devices (for example, network devices such as routers) constituting a network is increasing. Setting and cancellation of new services for subscribers are performed by placing orders in network devices, and diversification of services and increase in subscribers increase the opportunity for order entry. In addition, device management related to maintaining the quality of communication infrastructure is implemented by order entry, and the importance of efficient order entry is increasing for smooth network management. Here, there is a service activation as a technique for setting contents related to a service in each network device. In recent years, in this service activation, a technique has been proposed in which a part depending on a service among setting contents is cut out for each module and various services are flexibly handled by replacing the modules (see Non-Patent Document 1).

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>

  However, the technique described in Non-Patent Document 1 employs a system in which a system establishes and enters a Telnet session for each network device one order at a time. In this method, there is no problem of order conflict caused by placing a plurality of orders in the network device at the same time (problem in which a plurality of orders interfere with each other), but the order placing efficiency is not necessarily good. Accordingly, an object of the present invention is to solve the above-described problems and improve the efficiency of order placement into a network device.

  In order to solve the above-mentioned problem, an input unit that inputs an order to one or more network devices installed in a communication network, and an input unit that receives, from the external device, a series of orders to be input to the network device in the order of input The queue unit that stores the input order separately for each network device to which the order is to be placed is divided into queues for each priority when the order is placed into the network device, the storage unit, and the input control unit. The session management unit that updates the session management information based on the notified session status of the network device, establishes and disconnects the session between the network device, and the order stored in the queue unit is the destination of the order. Using a session established with the network device to be The session status of the device and notifies the session management unit, and a configuration and a input control unit that records put the order to the order information. This storage unit (1) for each session established with a network device, the identification information of the network device connected by the session, the order ID of the order entered by the session, the session is being established Session management information indicating whether or not there is an order being processed to the network device by the session, (2) an order placed by the established session, and an order ID of the order Corresponding order information and (3) competing order information indicating a combination of orders competing when the next order is placed in the same network device when the processing of the previously placed order is not completed. To do. Then, the input control unit obtains an order preferentially from the orders stored in the high priority order queue among the orders stored in the queue unit, and refers to the session management information, the order information and the competitive order information. (1) When there is no order being processed in the network device to which the order obtained from the queue unit is placed, a new session is established with the network device, and the order is placed using the established session. To do. On the other hand, (2) when there is an order being processed in the network device to which the order acquired from the queue part is input, (2-1) input when the order being processed is not an order competing with the acquired order The control unit establishes a new session with the network device, or inputs an order using a session already established with the network device. Furthermore, (2) when there is an order being processed in the network device to which the order obtained from the queue part is placed, (2-2) when the order being processed is an order that conflicts with the obtained order The control unit waits for the processing of the order being processed to end, establishes a new session with the network device, or places an order using a session already established with the network device. throw into.

  In addition, since the present invention places an order to one or more network devices installed in the communication network, (1) for each session established with the network device, the network device connected by the session Identification information, an order ID of an order placed by the session, session management information indicating whether the session is being established, and whether an order is being processed to the network device by the session; (2) The order entered by the established session, the order information associated with the order ID of the order, and (3) In the same network device, the processing of the previously placed order has not been completed. A storage unit for storing competing order information indicating a combination of competing orders when the next order is input Obtaining order release device, and the method performs the following processing. That is, the order input device receives a series of orders to be input from the external device to the network device in the order of input, and the input order is ordered to the network device for each network device to which the order is input. A step of storing in the queue part by dividing into queues for each priority at the time of input, and a step of acquiring an order with priority from the orders stored in the queue of the higher priority order among the orders stored in the queue part And establishing a session with the network device, inputting the acquired order using a session established with the network device to which the order is to be entered, and the session status of the network device To update the session management information based on the And a step of recording the over header information. Then, the order entry device performs the following processing in the step of placing the acquired order using a session established with the network device to which the order is placed. That is, the order placement device refers to the session management information, the order information, and the competitive order information. (1) When there is no order being processed in the network device that is the order placement destination acquired from the queue unit, In the meantime, a new session is established, and an order is placed using the established session. On the other hand, (2) when there is an order being processed in the network device to which the order acquired from the queue part is placed, (2-1) when the order being processed is not an order competing with the acquired order, The input device establishes a new session with the network device, or inputs an order using a session already established with the network device. Further, (2) when there is an order being processed in the network device to which the order acquired from the queue part is placed, (2-2) when the order being processed is an order that conflicts with the acquired order The input device waits for the processing of the order being processed to end, and establishes a new session with the network device, or uses the session already established with the network device to place an order. throw into.

  The competing order combination indicated in the competing order information of the order entry device of the present invention is a combination of an order for instructing saving of the configuration of the network device and an order for instructing rewriting of the configuration.

  In this way, the order placement device can establish a plurality of sessions with the network device and place orders, or can continuously place orders using already established sessions. As a result, the order entry device can efficiently place an order with respect to the network device. Further, the order entry device can preferentially enter the network device from the order of higher priority among the orders. Therefore, a highly urgent order, for example, a test order (for example, “ping” or “traceroot”) can be preferentially input to the network device. Here, the order placement device refers to the order information for the order being placed in the network device that is the placement destination of the selected order, and after confirming that it does not conflict with the selected order, places the order placement device. Therefore, the order entry devices can prevent competition between orders placed in the same network device. The order is, for example, an order indicating rewriting of the configuration (setting) of the network device, an order for instructing saving of the configuration, an order for instructing reading of the configuration, or the like.

  In addition, the input control unit of the order input device of the present invention records the elapsed time from the start of connection to the network device by the session in the session management information for each session. Then, the input control unit refers to the session management information, and disconnects the session when the elapsed time from the start of connection to the network device by the session exceeds a predetermined time.

  By doing so, it is possible to prevent the order entry device from connecting to a specific network device for a long time. As a result, it is difficult for the order input number to be biased among the network devices to which the order is to be input.

  Further, the input control unit of the order input device of the present invention records, for each session, the number of input orders to the network device by the session in the session state of the session in the session management information, and refers to the session management information, When the number of orders placed on the network device by the session exceeds a predetermined number, the session is disconnected.

  By doing so, it is possible to prevent the order placement device from placing a large number of orders on a specific network device. As a result, it is less likely that the order number will be biased among the network devices to be ordered.

  In addition, when establishing a new session with a network device, the entry control unit of the order entry device of the present invention performs the following processing when a new session is established with reference to the session management information. That is, when the total number of sessions established between the order entry device and each network device exceeds the maximum number of sessions that can be established by the order entry device, the entry control unit A new session is established after either of them is disconnected.

  In this way, the order entry device can efficiently place an order in the network device even when session resources are limited.

  Further, the present invention provides a program for causing an order placement apparatus, which is a computer, to execute an order placement method.

  According to such a program, it is possible to cause a general computer to execute the order placing method of the present invention.

  According to the present invention, it is possible to improve the efficiency of order entry into a network device.

It is the figure which showed notionally the process outline | summary of the order injection | throwing-in system of this Embodiment. It is the figure which showed the example of a structure of the order insertion system of FIG. It is the figure which illustrated the order of this embodiment. It is the figure which illustrated the session management information of FIG. It is the figure which showed the process sequence of the order injection | throwing-in apparatus of FIG.

  The order entry system according to the embodiment of the present invention will be described below. Here, a case will be described as an example where the network device to be ordered is a router used for an IP network. First, the order handled by the order entry system will be described. The order is a series of commands input to the router. For example, (1) order for rewriting the router configuration, (2) order for saving the configuration, (3) order for reading the configuration, etc. It is. Among these, if a plurality of sessions are established in the router and an order is entered, processing in the router may not be performed normally. In other words, there is a risk that orders may compete with each other. For example, if a configuration rewrite order is input to the router while a configuration save order is input, the save may not be performed normally. On the other hand, there is no conflict between the config save order and the config read order. As described above, the orders to be entered into the router include a combination of orders that conflict when placed in the same router and a combination of orders that do not conflict.

  Here, in order to improve the input efficiency, the order input device establishes one or more sessions in one router and inputs orders, or continuously inputs orders using established sessions. At this time, the order to be entered into the router is controlled so as not to conflict with the order being processed by the router.

  An outline of processing of this order entry device will be described with reference to FIG. It is assumed that the maximum value (session resource) of the total number of sessions established between the order entry device 10 and each router (network device) 20 that is the order entry target is determined in advance.

  When the order entry device 10 receives an input of an order group to be entered into each router 20 from the host system 30, the order entry device 10 divides the order group for each of the placement destination routers 20 (for example, routers 20A and 20B). Then, the divided order group is divided according to the priority. For example, the order group is divided into an emergency order and a normal order according to the type. Such processing is performed for each router 20 that is the destination of the order group. Next, the input control unit 124 of the order input device 10 inputs the orders stored in the queue unit 122 to the router 20, but preferentially selects from the emergency orders (from the order with higher priority).

  Then, the input control unit 124 searches the session management information 131 for a session that has been established with the router (target router) to which the selected order is input (1). The session management information 131 includes, for each session ID, the router ID of the router 20 connected by the session, the session state (whether the session is established, the order is being placed, or the session is not established), and the order is being placed. This is information indicating the order ID of the order.

  Then, if the session is established with the target router (2) and the order is being placed in the target router, the placement control unit 124 acquires the order ID of the order being placed from the order information 132. To do. Next, (3) based on the order ID, the input control unit 124 searches the order information 132 for the order being input to the target router, and determines the competition between the searched order and the selected order. To do. That is, the input control unit 124 determines whether an order to be input to the router 20 from now on conflicts with an order being input to the router 20. Here, if there is no conflict, the input control unit 124 establishes a new session if there is room in the currently established session or session resources, and inputs the selected order to the router 20. If the orders compete with each other, the input control unit 124 inputs the selected order after the order processing in the router 20 is completed.

  By doing in this way, the order entry device 10 establishes one or more sessions for the same router 20 and inputs orders in parallel, or when the orders are continuously input using one session. The contention with the order being processed by the router 20 can be prevented from occurring. Thereby, the order placement apparatus 10 can perform order placement efficiently.

<Configuration>
Next, a configuration example of the order entry system according to the present embodiment will be described with reference to FIG. The order entry system includes a host system 30 (30A, 30B, 30C) that outputs an order to the router (device) 20, and an order entry device 10 that receives the order from the host system 30 and inputs the order to the router 20. It includes a router 20 (20A, 20B, 20C) which is a device to which this order group is placed. The host system (external device) 30 is realized by, for example, a computer that outputs an order to the order input device 10. The router 20 is a router installed in a communication network such as an IP network. The order entry device 10 in FIG. 2 has already established a session with the router 20 (20A to 20C) by the entry control unit 124. The session management information 131 records which router 20 each session is established with, whether the session is being established, whether an order is being entered in the router 20 that is establishing a session, and the like. It shall be.

  The configuration of such an order entry device 10 will be described in detail. The configuration of the order entry device 10 is roughly 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 orders from the host system 30. The processing unit 12 controls the entire order placement apparatus 10, and mainly performs order placement control stored in the queue unit 122. The storage unit 13 stores session management information 131, order information 132, and the like that are referred to when this session is selected. The output unit 14 outputs the order to the router 20.

  The input unit 11 and the output unit 14 include an input / output interface and a communication 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 order entry 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 order placement device 10 is realized by program execution processing, the storage unit 13 stores an order placement program for realizing the function of the order placement device 10.

  Here, the order received by the order placement apparatus 10 from the host system 30 will be described. As shown in FIG. 3, the order includes a router ID (for example, IP address) of the router 20 to which the order is placed and one or more commands. The order type here indicates, for example, a type indicating whether the order is an emergency order or a normal order. In the order illustrated in FIG. 3, commands “aaaaaaaaa” and “bbbbbbbbbb” are input to the router 20 with the IP address “10.10.10.11”, and these types are both “emergency (emergency order)”. Indicates.

  When the input unit 11 in FIG. 2 receives the input of this order from the host system 30, the input unit 11 outputs it to the processing unit 12.

  The processing unit 12 includes a conversion unit 120, a queuing unit 121, a queue unit 122, a session management unit 123, and an input control unit 124.

  The conversion unit 120 converts the order input from the host system 30 into an order that can be processed by the router 20.

  The queuing unit 121 divides the order converted by the conversion unit 120 for each router 20 to which the order is input. The order divided for each router 20 is divided according to the priority. For example, the queuing unit 121 determines the type of order (for example, emergency order or normal order), and the emergency order is stored in the emergency order queue of the queue unit 122 as a high priority order. Are stored in the normal order queue of the queue unit 122 as orders of relatively low priority.

  The queue unit 122 includes an area for storing the orders to the router 20 separately for each router 20 into an emergency order queue and a normal order queue. In addition, the queue unit 122 is formed on a semiconductor memory such as a RAM provided in the order placement device 10, for example.

  The session management unit 123 receives information indicating the state of the session established with the router 20 from the input control unit 124 and records it in the session management information 131.

  The input control unit 124 preferentially acquires orders from the orders stored in the emergency order queue (high priority queue) in the queue unit 122. Then, establishment and disconnection of a session with the order entry router 20 and order entry using the established session are performed. In order entry here, the session management information 131, the order information 132, and the competing order information 133 are referred to, so that the competing orders are not placed in the same router 20. Also, the input control unit 124 performs session management by setting the state as a session state when establishing or disconnecting a session, placing an order, or after completing the order processing in the destination router 20 after placing the order. Output to the unit 123. Details of the processing of the input control unit 124 will be described later using a flowchart. In addition, when placing an order in the router 20, the entry control unit 124 records the order in association with the order ID in the order information 133. Note that, when establishing a new session with the router 20, the entry control unit 124 refers to the session management information 131 and establishes a new session. It is determined whether the total value of the number of sessions established with each exceeds the maximum number of sessions that can be established by the order entry device 10. When determining that the order input device 10 exceeds the maximum number of sessions that can be established, the input control unit 124 establishes a new session after one of the established sessions is disconnected.

  The storage unit 13 stores session management information 131, order information 132, and competing order information 133.

  The session management information 131 is information indicating the state of a session established with the router 20. As shown in FIG. 4, for example, the session management information 131 includes, for each session ID, the session state of the session (for example, whether the session is being established, the order is being placed (in order processing), or the session is not established) This is information in which the order ID, which is identification information of the placed order, and the number of consecutive placed orders, which is the number of orders placed by the session, are recorded. 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 order placement apparatus 10. The session management information 131 is referred to when the input control unit 124 selects a session used for order input.

  The order information 132 is information indicating the contents of the order for each order ID of the order that has been put into the router 20. The order information 132 is referred to when the input control unit 124 determines whether or not the order being processed in the router 20 and the order to be input compete with each other.

  The competing order information 133 is information indicating a combination of order types that may conflict if they are input in parallel or continuously to the same router 20. This combination is, for example, a combination of a configuration save order and a configuration rewrite order. The contention order information 133 is also referred to when the input control unit 124 determines whether or not the order being processed by the router 20 and the order to be input will compete.

  The output unit 14 in FIG. 2 inputs the order output from the input control unit 124 to the router 20.

<Processing procedure>
Next, with reference to FIGS. 1 and 2, the processing procedure of the order making apparatus 10 will be described with reference to FIG. The input unit 11 of the order placement apparatus 10 in FIG. 2 receives an order input from the host system 30. Then, the input unit 11 converts this order, and the conversion unit 120 converts this order into a format that can be used by the router 20, and outputs it to the queuing unit 121. The queuing unit 121 divides the order converted by the conversion unit 120 for each router 20 that is the input destination. The order divided for each router 20 is divided for each priority. For example, when an emergency order is a high priority order, the queuing unit 121 determines the type of the order (emergency order or normal order), and the emergency order is stored as an emergency order queue of the queue unit 122. The normal order is stored as a normal order queue of the queue unit 122.

  When the input control unit 124 preferentially selects an order from the emergency order queue of the queue unit 122 (S1 in FIG. 5), first, a new session is established with the target router of this order (S2). . When establishing a new session, the input control unit 124 refers to the total value of the current number of sessions indicated in the session management information 131, and waits for a free session if there is no extra session resource. Then, the input control unit 124 performs order input via the output unit 14 using the established session (S3). Then, the input control unit 124 transmits the session state to the session management unit 123, and the session management unit 123 updates the session management information 131 (S4). In addition, when placing an order in the router 20, the entry control unit 124 records the order in association with the order ID in the order information 132.

  Next, the input control unit 124 refers to the session management information 131 to determine whether or not the number of consecutive order inputs to the target router exceeds a predetermined threshold (S5), and input the continuous orders to the target router. If the number exceeds the predetermined threshold (Yes in S5), the session established with the target router is disconnected (S6). Then, the input control unit 124 outputs the session state of session disconnection to the session management unit 123. By disconnecting the session in this way, it is possible to prevent the order placement apparatus 10 from placing a large number of orders in succession on a specific router 20. Therefore, it is difficult for the order number to be biased between the routers 20. After S6, the session management unit 123 updates the session management information 131 based on the output session state (S7).

  On the other hand, in S5, the order control unit 124 has the number of consecutive orders placed in the target router equal to or smaller than a predetermined threshold (No in S5), and the order to the same router 20 as the order placed in S3 is queued. When it is in the unit 122 (Yes in S8), the order is acquired from the queue unit 122, and the process proceeds to S9. On the other hand, when there is no order for the same target router in the queue unit 122 (No in S8), the process proceeds to S6.

  When the result in S8 is Yes, the input control unit 124 refers to the session management information 131, the order information 132, and the conflicting order information 133, and the order acquired from the queue unit 122 competes with the order being processed by the target router. It is determined whether or not (S9). Specifically, the input control unit 124 reads from the session management information 131 the session information regarding the order target router acquired from the queue unit 122. If there is an order being processed in the target router, the input control unit 124 reads the contents of the order from the order information 132. When the combination of the content (type) of the read order and the order acquired from the queue unit 122 is a combination described in the competitive order information 133, the order acquired from the queue unit 122 is stored in the target router. It is determined that the order is in competition with the order (Yes in S9). Then, the input control unit 124 waits for the order processing to be completed in the target router (S10), and proceeds to S11.

  On the other hand, (1) when there is no order being processed in the target router of the order acquired from the queue unit 122, or (2) a combination of the order acquired from the queue unit 122 and the order being processed in the target router is When the combination is not described in the competing order information 133, the input control unit 124 determines that the order acquired from the queue unit 122 is an order that does not compete with the order in the target router (No in S9). Then, the process proceeds to S11.

  In S11, the input control unit 124 refers to the session management information 131 and determines whether there is a session in which an order can be subsequently input (S11). For example, referring to the session management information 131 for the order target router acquired by the input control unit 124 from the queue unit 122, there is an already established session, and there is no order being processed in the target router. Is confirmed, it is determined that there is a session in which the order can be subsequently placed in this target router (Yes in S11). Then, the process returns to S3.

  On the other hand, referring to the session management information 131, when there is no session established in the target router, or there is a session established, but the order is being processed in the target router (order is being placed), the placement control is performed. The unit 124 determines that there is no session in which an order can be subsequently input (No in S11). Then, the process returns to S2.

  By doing in this way, the order placement device 10 determines whether or not a competing order is being processed for the target router, and places the order in parallel to the target router, or continues the orders using the same session. Or throw it in. Therefore, the order entry device 10 can efficiently place an order with respect to the target router.

  Note that the entry control unit 124 of the order entry device 10 records the elapsed time from the start of connection to the router 20 by the session in the session management information 131. Then, the input control unit 124 may refer to the session management information 131 and disconnect the session with the router 20 when the elapsed time to the router 20 by the session exceeds a predetermined time. By doing in this way, it is possible to prevent the order making apparatus 10 from connecting to the specific router 20 for a long time. That is, it is difficult for the order entry number to be biased between the routers 20 of this order entry system.

DESCRIPTION OF SYMBOLS 10 Order injection apparatus 11 Input part 12 Processing part 13 Storage part 14 Output part 20 (20A, 20B, 20C) Router 30 Host system 120 Conversion part 121 Queuing part 122 Queue part 123 Session management part 124 Input control part 131 Session management information 132 Order information 133 Competitor order information

Claims (7)

An order entry device for placing an order to one or more network devices installed in a communication network,
An input unit that receives a series of orders to be input from the external device to the network device in the order of input,
A queue unit for storing the input order separately for each of the network devices to which the order is to be placed and divided into queues for each priority when ordering the network device;
(1) For each session established with the network device, the identification information of the network device connected by the session, the order ID of the order placed by the session, whether or not the session is being established And session management information indicating whether or not an order is being processed to the network device by the session, and (2) the order placed by the established session and the order ID of the order And (3) competing order information indicating a combination of competing orders when the next order is placed in the same network device when the processing of the previously placed order is not completed. A storage unit;
A session management unit that updates the session management information based on the session state of the network device notified by the input control unit;
Establishing and disconnecting a session with the network device, placing the order stored in the queue unit using a session established with the network device to which the order is placed, and Notifying the session state of the session state of the network device, the input control unit for recording the input order in the order information,
The input control unit
The order is preferentially acquired from the orders stored in the high priority order queue among the orders stored in the queue part,
With reference to the session management information, order information and competing order information,
(1) When there is no order being processed in the network device to which the order obtained from the queue unit is placed, a new session is established with the network device, and the order is placed using the established session. ,
(2) In the case where there is an order being processed in the network device to which the order acquired from the queue unit is placed,
(2-1) When the order being processed is not an order competing with the acquired order, a new session is established with the network device or has already been established with the network device. Order using the session,
(2-2) When the order being processed is an order competing with the acquired order, a new session is established with the network device after waiting for the processing of the order being processed to end. An order entry device characterized in that an order is entered using a session established with the network device already established. The competing order combinations are:
2. The order entry device according to claim 1, wherein the order entry device is a combination of an order for instructing storage of the configuration of the network device and an order for instructing rewriting of the configuration. The input control unit
For each session, the elapsed time from the start of connection to the network device by the session is recorded in the session management information,
The session is disconnected when the elapsed time from the start of connection to the network device by the session exceeds a predetermined time with reference to the session management information. Order input device. The input control unit
For each session, record the number of orders placed into the network device by the session in the session state of the session in the session management information,
3. The order entry device according to claim 1, wherein the session management information is referred to and the session is disconnected when the number of input orders to the network device by the session exceeds a predetermined number. . The input control unit
When establishing a new session with the network device, referring to the session management information and establishing the new session, the number of sessions that the order placement device is establishing with each network device. When the total value exceeds the maximum number of sessions that the order entry device can establish,
5. The order entry apparatus according to claim 3, wherein the new session is established after any of the established sessions is disconnected. In order to place an order for one or more network devices installed in a communication network, (1) for each session established with the network device, identification information of the network device connected by the session, the session (2) the session management information indicating the order ID of the order entered in step 1, whether the session is being established, and whether the order is being processed by the session to the network device; Order information in which the order entered by the established session is associated with the order ID of the order, and (3) in the same network device, the processing of the next order has not been completed. A storage unit is provided for storing competing order information indicating combinations of competing orders when an order is placed. That order release device,
Receiving a series of orders to be input from the external device to the network device in the order of input;
The input order is stored in a queue unit for each of the network devices to which the order is placed, and is divided into queues for each priority when placing orders into the network device;
Obtaining a priority order from an order stored in a queue of an order having a high priority among orders stored in the queue unit;
Establishing a session with the network device, and placing the acquired order using a session established with the network device to which the order is placed;
Updating the session management information based on a session state of the network device;
Recording the placed order in the order information; and
In the step of inputting the acquired order using a session established with the network device that is the input destination of this order, referring to the session management information, the order information, and the competing order information,
(1) When there is no order being processed in the network device to which the order obtained from the queue unit is placed, a new session is established with the network device, and the order is placed using the established session. ,
(2) In the case where there is an order being processed in the network device to which the order acquired from the queue unit is placed,
(2-1) When the order being processed is not an order competing with the acquired order, a new session is established with the network device or has already been established with the network device. Order using the session,
(2-2) When the order being processed is an order competing with the acquired order, a new session is established with the network device after waiting for the processing of the order being processed to end. An order entry method characterized in that an order is placed using a session established with the network device already established.   A program for causing the order entry device, which is a computer, to execute the order entry method according to claim 6.

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