JPH11112502A - Enterprise network design assisting system and record medium recording enterprise network design assisting program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate traffic between business establishments being components of an enterprise network automatically based on each traffic of each application such as an electronic mail in the enterprise network design assisting system. SOLUTION: The system is provided with an application information management means 15000 that receives a utility state of data communication for each application and assignment information of servers, an application data path calculation means 17000 that obtains a data communication path based on the server assignment information according to path recognition rules, an application traffic information calculation means 18000 that obtains each traffic of data communication or each application program between plural communication points, an inter-point traffic information calculation means 12000 that obtains the total traffic between plural communication points based on the application traffic information and a communication network design assisting means 13000 that aids design of communication installations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corporate network design support apparatus and a corporate network which are used for design support of a corporate network composed of a plurality of communication bases connected to each other via a communication line such as a dedicated line. The present invention relates to a recording medium on which a design support program is recorded.

[0002]

2. Description of the Related Art A corporate network is a network in which a plurality of communication bases belonging to the same corporate group are connected by a communication line such as a dedicated line. Through this company network, data such as e-mail can be transmitted from a specific business office in the group to another business office. In addition, a gateway is often installed to connect a specific communication base in a corporate group to a group other than the group via a dedicated line or a public line.

When a corporate group introduces a new corporate network or remodels communication facilities of an existing corporate network in accordance with an increase in traffic, it is necessary to design a corporate network in advance. That is, the communication capacity (communication speed) allowed by the exchanges and communication lines of each part of the network is determined. In this type of network design, it is important that the communication capacity of the network be larger than the required communication amount so that a state in which communication cannot be performed does not occur. However, when the communication capacity of the network is increased, the equipment cost and the running cost increase.

In order to suppress increases in equipment costs and running costs, the communication capacity of the equipment in each part of the network is appropriately determined in accordance with the amount of communication required for each part.
It is important to eliminate waste. FIG. 17 shows the configuration of a conventional enterprise network design support device used for enterprise network design. Referring to FIG. 17, this enterprise network design support device 2000
Numeral 0 is composed of a control unit 20100, an input unit 20200, an output unit 20300, an enterprise network establishment information management unit 21000, an inter-office traffic information management unit 22000, and an enterprise network automatic design unit 23000.

[0005] An input unit 20200 controls input from a keyboard or a mouse. The output unit 20300 controls output to a display or the like. Corporate Network Office Information Management Department 21000
An office information storage unit 21100 is provided for storing the name of each office and the location information of each office in the corporate network. The inter-office traffic information management unit 22000 includes an inter-office traffic information storage unit 22100 that stores the traffic volume between the offices as inter-office traffic information.

[0006] The enterprise network automatic design unit 23000 has a function of designing an enterprise network so as to minimize the equipment cost of the switching equipment and the like and the running cost of the communication service. The design result is stored in the design result storage unit 23100. Control unit 20100
Controls each unit connected thereto. As a corporate network to be designed, for example, a network having a configuration as shown in FIG. 16 is assumed.

FIG. 18 shows the configuration of the inter-office traffic information 22110 stored in the inter-office traffic information storage unit 22100 of the inter-office traffic information storage unit 22100 in the enterprise network design support device 20000 of FIG. The inter-office traffic information 22110 accumulates the traffic volume between each of a plurality of offices forming a specific company group.

[0008] The inter-office traffic information 22110 stores information in the form of a matrix having each office stored in the office information storage unit 21100 as a matrix element. Each matrix element stores the traffic volume (communication volume) between offices.
In the inter-office traffic information 22110, it is not necessary to distinguish between the originating side and the receiving side of the communication. Therefore, the matrix element contains the number of combinations of two bases in the set of a plurality of establishments forming a specific company group. Only elements are needed.

[0009] Further, since there is no traffic between the same sites, no traffic amount is stored in the matrix element. Among the matrix elements shown in FIG. 18, the hatched elements are not used. FIG. 19 shows the contents of a corporate network automatic design process in a conventional corporate network design support apparatus. In FIG. 19, the position in the horizontal direction of each step indicates a difference between apparatuses that execute the processing. The position in the vertical direction corresponds to a time axis, and processing is sequentially performed from top to bottom.

In FIG. 19, in step S26000, when the company network self-employment design process is started, in step S26050, the input unit 20200 inputs a company network automatic design request to the control unit 20100. The control unit 20100, which has received the enterprise network automatic design request,
In step S2610, a request is made to the enterprise network automatic design unit 23000 for automatic enterprise network design. In step S26150, the enterprise network automatic design unit 23000 receiving the request for the enterprise network automatic design requests the inter-office traffic information management unit 22000 for the inter-office traffic information.

The inter-office traffic information management unit 222, which has received the request for inter-office traffic information, proceeds to step S26200.
Then, the inter-office traffic information 22110 stored in the inter-office traffic information storage unit 22100 is returned. In step S26250, the enterprise network automatic design unit 23000 receiving the response to the inter-office traffic information 22110 requests the enterprise network establishment information management unit 21000 for enterprise network establishment information.

In step S26300, the enterprise network establishment information management unit 21000 having received the request for the enterprise network establishment information returns the enterprise network establishment information stored in the enterprise network establishment information storage unit 21100. In step S26350, the enterprise network self-recommended design unit 23000 that has received the response to the enterprise network office information displays the traffic volume between the offices indicated in the inter-office traffic information 22110 and the enterprise network office information. The company network is automatically designed so that the equipment cost and the running cost are minimized based on the conditions of the location of each business office.

The design result is stored in the design result storage unit 23100, and the end of the enterprise network automatic design is notified to the control unit 20100. The control unit 20100 that has received the enterprise network automatic design end notification,
In step S26450, the enterprise network automatic design process ends. As described above, in the conventional enterprise network design support device,
Design a corporate network based on inter-office traffic.
Therefore, in order to design a corporate network, it is necessary to prepare data on traffic volume between offices in advance.

[0014]

The data of the inter-office traffic volume given to the conventional enterprise network design support apparatus must be prepared by the users of the enterprise network. On the other hand, the users of the corporate network can easily grasp the traffic volume for individual applications such as e-mail and WWW (World Wide Web). However, it is extremely difficult to accurately grasp how much traffic will occur between each business establishment by executing all the application programs by prediction or the like.

In the conventional enterprise network design support apparatus, the traffic volume between each base (office) is used as an input parameter,
The design of the corporate network had the following issues. (Problem 1) In many cases, a user of a corporate network is more interested in parameters for each application than for a parameter itself of a traffic amount between bases (offices). In some cases, it is required to design a corporate network based on the usage status (or usage request) of a user's application. There is also a demand to know the effect on the corporate network when the use status (or use request) of the application is changed.

In such a situation, in the conventional enterprise network design support device, it is necessary to manually estimate the traffic volume between the offices from the usage status (or usage request) of the application each time. It took a long time to design a network based on the usage status (or usage request). (Problem 2) The location of an application server that relays application data between a transmission base (outside of a business or a company) that transmits data using an application and a reception base (outside of a business or of a company) that receives data. Is predetermined, the position of the application server is not reflected in the design of the corporate network.

(Problem 3) A corporate network is designed under the condition that the traffic volume between offices, which is an input parameter, is constantly generated between offices. Therefore, it is not possible to design a corporate network in consideration of the fluctuation of the traffic volume for each time zone. (Issue 4) The traffic volume between the bases (offices), which is the input parameter, is the traffic volume generated by the communication between the business sites in the company and the traffic volume outside the company generated by the communication between the company group and outside the company group. The quantities are not distinguished.

That is, when a traffic volume is input for a business establishment serving as an access point to the outside of the company, for example, business establishment C in FIG. The result of adding to the traffic volume between the offices between the office and the office serving as the access point is defined as the input value. Therefore, in the conventional enterprise network design support apparatus, it is necessary to calculate the traffic volume between the offices each time. Further, the conventional enterprise network design support apparatus does not cover the line design between the business establishment serving as the access point and the outside of the company, and requires the line speed (capacity) required between the business establishment serving as the access point and the outside of the company. ) Can not be asked.

An object of the present invention is to design a corporate network not by inputting "traffic between offices" but by inputting "traffic relating to each application". Here, "Application traffic"
Is the traffic flowing in the network of interest when executing an application that exchanges data via the network, such as e-mail or WWW.

The route through which this traffic (data) passes is
It is determined by factors such as the position of the server terminal of the application and the position of the client terminal.

[0021]

According to the present invention, traffic related to each application is ultimately converted into a form of traffic between offices, and traffic between offices of all applications is accumulated. Automatically calculate the total traffic between offices. An enterprise network is designed by applying the conventional technique to the total traffic between the offices.

According to a first aspect of the present invention, there is provided an enterprise network design support apparatus for data communication between a plurality of communication bases connected to each other via a communication line such as a dedicated line, for each application program for controlling the data communication. Application information management means for inputting arrangement information of a server for relaying or holding data transmitted by type of application program, use information indicating a use status or a use request of the server, Application data path calculation means for obtaining a data communication path through which data processed by each application program passes from the arrangement information; and an application data path between the plurality of communication bases based on the data communication path and the usage information. Data traffic An application traffic information calculating means for determining the amount as application traffic information; and an inter-base traffic information calculating means for obtaining a total traffic amount between the plurality of communication bases as inter-base traffic information based on the application traffic information. A communication network design support means for supporting the design of the communication base and communication equipment required between the communication bases based on the inter-base traffic information is provided.

The traffic related to the application is:
It greatly depends on the form of the application, that is, the location of the program, the number of related clients and the like. According to the present invention, a design method based on the above-described concept is constructed for a specific application such as e-mail and WWW. Examples of the usage information include information on application data transmission / reception bases (offices within a corporate group and outside a corporate group) for each application, the number of data transmissions between the bases in a specific period, and the number of transmissions per unit time period in a specific period. The transition of the ratio (normalized by the number of transmissions in the beak time period), the data size per data transmission, and the like are input.

As the arrangement information, for example, an application server arrangement base (office) and application points of each application (enterprise within a corporate group and outside the corporate group) and an attribution of each application server are input. The application data path calculation means obtains a data communication path through which data processed by each application program passes from the server arrangement information according to a predetermined path recognition rule.

The application traffic information calculation means obtains, as application traffic information, a traffic volume of data communication for each application program between the plurality of communication bases, based on the data communication path and the usage information. The inter-base traffic information calculation means obtains a total traffic volume between the plurality of communication bases as inter-base traffic information based on the application traffic information.

The communication network design support means supports the design of the communication base and communication equipment required between the communication bases based on the traffic information between bases. For example, there are two types of e-mail programs: a client program and a mail server program. The location of each program is as follows.

The client program is mounted on each user terminal, has a function of subordinate to any one of the mail server programs, and transmitting and receiving an e-mail via the mail server program. The e-mail address used by each user is composed of a user name and a mail server terminal (hereinafter, mail server) name of a mail server program to which the client program used by the user depends.

The mail server program is mounted on the mail server. Receives an e-mail sent from a subordinate client program and relays it to the mail server program on the mail server stored at the destination e-mail address, or e-mail delivered by the client program accessing the mail server program Has the function of receiving

In the case of transmitting an e-mail between a specific company group and other bases, an e-mail transmitted from outside the company is received, and the company specified by the destination e-mail address is received. It is necessary to relay to a mail server program on an internal mail server or to receive an e-mail transmitted to an e-mail address outside the company and relay it to a mail server program on a host outside the company.

The server for performing the relay is called a gateway server, and is realized by executing a gateway mail server program. The transmission route of the electronic mail and the number of mail server programs to be relayed are determined as follows. First, the case of receiving and transmitting e-mail between offices in a company will be described. Here, it is assumed that the mail server program to which the client program of the user terminal depends is uniquely determined for each business office to which the user terminal belongs.

The office where the mail server to which the client program on the user terminal of each office is located is located,
For example, when the mail server table 15213 shown in FIG. 4 is defined, an electronic mail route between offices in a company is uniquely determined. The location relationship of the mail server and the flow of intra-company mail shown in the example of FIG. 4 will be described with reference to FIG. In this example, each of the establishments A, C, and D has one server (mail server), but does not exist in the establishment B, and the client program of the user terminal of the establishment B is And subordinate to the mail server (server D) of the office D.

Therefore, the e-mail from the user terminal (client) of the office A to the user terminal (client) of the office B is “user terminal of the office A → server A → server D → user terminal of the office B”. Are relayed in this order, and the relayed offices are "Office A → Office D → Office B", between (Office A, Office D) and (Office D, Office B). Traffic occurs.

[0033] Further, the user terminal of the office A is connected to the office D.
Is relayed in the order of “user terminal of office A → server A → server D → user terminal of office D”, and the relayed office is “office A → office D”. ”, And traffic is generated between (the establishment A and the establishment D). The location of the traffic that occurs in the above example is
For example, it can be obtained by an application data path calculation rule as shown in FIGS.

The number of mail servers relayed by e-mail reception / transmission in a company is two: a mail server on which the client program on the sending user terminal depends, and a mail server on which the client program on the receiving user terminal depends. is there. Next, a case of receiving and transmitting an e-mail between an office in a company and an outside company will be described with reference to FIG.

In order to obtain the e-mail route, in addition to the mail server table 15213, information on the business office where the gateway mail server is located and the mail server subordinate to the gateway mail server are shown in FIG. Defined as table 15212.
The location relationship between the mail server and the gateway mail server is determined, for example, as shown in FIG. In FIG. 16, a gateway mail server CG exists at a business establishment C, and servers (mail servers) A, C, and D are subordinated.

Therefore, the e-mail from the user terminal of the office B to the user terminal outside the company is relayed in the order of “user terminal of the office B → server D → server CG → outside the company”.
The relayed office is "Office B → Office C → Office D"
Thus, traffic is generated between (Office B, Office C) and between (Office C, Office D). Also,
E-mail from outside the company to the user terminal of establishment A
It is relayed in the order of “off-company → server CG → server A → user terminal of office A”, and the relayed office is “office C →
Business establishment A ", and traffic occurs between (business establishment C and business establishment A).

In the above example, the location where traffic occurs is determined based on, for example, the application data path calculation rules shown in FIGS. The number of mail servers to be relayed when sending and receiving e-mail between the inside and outside of the corporate group is divided into two types: a mail server to which a client program on a transmitting (or receiving) user terminal depends, and a gateway mail server. It is.

According to a second aspect of the present invention, in the enterprise network design support apparatus, the application data path calculating means includes a data included in the usage information based on a content of a server information table indicating a correspondence between the communication base and the server. The present invention is characterized in that a communication base on a communication originating side and a receiving side is compared with a location of the server used in the communication base, and the data communication path is obtained according to a result of the comparison.

For example, in the example of FIG. 16, there is a difference in the data communication path between the case where the communication bases on the transmitting side and the receiving side are the office B where the server does not exist and the office D where the server exists. Occurs. That is, when communication is performed between the establishment B and the establishment A where the server does not exist, (the establishment B,
Traffic occurs between the establishments D) and between the establishments D and A. On the other hand, when communication is performed between the office C and the office A where the server is located, traffic occurs only between (the office C and the office A).

For example, by providing a server information table, such as a mail server information table 15213 shown in FIG. 4, which indicates the correspondence between the locations of communication bases (offices) and servers, the position where traffic occurs can be specified. it can. According to a third aspect of the present invention, there is provided an enterprise network design support apparatus according to which of a group inside and outside of a group divided by a predetermined gateway server as a boundary, the originating site and the receiving site of data communication included in the usage information. Wherein the application data path calculation means obtains a data communication path.

For example, in a corporate network as shown in FIG. 16, it is necessary to grasp the traffic generated by communication between each office in the corporate group and outside the corporate group. However, the communication path in communication between each business office in the corporate group and the outside of the corporate group is different from communication in the corporate group. By dividing the communication base with a gateway server (for example, CG in FIG. 16) as a boundary, communication within a company group and communication between an office in a company and outside the company group are identified, and a position where traffic occurs is detected. it can.

According to a fourth aspect of the present invention, in the enterprise network design support apparatus, the application data path calculating means is used at a communication base based on the contents of a gateway server information table indicating a correspondence between the server and a predetermined gateway server. It is characterized in that the location of the server is compared with the location of the gateway server used by the server, and a data communication path is obtained according to the result of the comparison.

For example, in the example of FIG. 16, when the communication bases on the transmitting side and the receiving side are the office A where the gateway server does not exist and the office C where the gateway server exists, the data communication path is different. There is a difference. That is, when communication is performed between the office A where the gateway server does not exist and the outside of the corporate group, traffic is transmitted between the (office A and office C) and between the (office C and outside the corporate group). Occurs. On the other hand, when communication is performed between the office C where the gateway server exists and outside the company group, traffic occurs only between (the office C and outside the company group).

For example, by providing a gateway server information table indicating the correspondence between the server and the gateway server, such as the gateway mail server information table 15212 shown in FIG. 4, it is possible to specify the position where the traffic occurs. 6. The enterprise network design support apparatus according to claim 5, wherein the communication network design support means is configured to transmit a plurality of inter-base traffic between an outside of a group partitioned by the gateway server as a boundary and each communication base in the group. A total traffic volume between the outside of the group and the inside of the group is obtained as outside-group traffic information based on the information.

For example, in the corporate network shown in FIG. 16, the amount of traffic generated on the communication line between the server CG, which is the gateway server, and the outside of the corporate group is obtained as out-of-group traffic information. The enterprise network design support device according to claim 6, wherein the communication network design support means outputs inter-base traffic information between an outside of a group divided by the gateway server as a boundary and each communication base in the group. The traffic information is added to inter-base traffic information between communication bases in the group.

That is, the sum of both the traffic generated by the communication within the corporate group and the traffic generated by the communication between the corporate group and the outside of the corporate group is detected between the sites in the corporate group. 8. The enterprise network design support device according to claim 7, wherein said application traffic information calculation means calculates an application program between said communication bases based on a plurality of communication volumes for each predetermined time zone included in said usage information. Is obtained as application traffic information for each time zone.

The amount of data per unit time of communication performed between a specific communication base and another communication base is generally
It fluctuates greatly with time. For example, it fluctuates like distribution graphs 15114 and 15124 shown in FIG. Therefore, when designing a corporate network focusing only on the amount of traffic at a specific time,
There is a possibility that traffic exceeding the traffic volume assumed in advance occurs, and a time zone in which communication is not possible occurs.

Therefore, for example, the distribution graph 15 shown in FIG.
If a plurality of communication amounts for each time zone are input as the usage information as in 114 and 15124, the traffic amount of data communication for each application program between the communication bases can be, for example, a traffic distribution shown in FIG. Table 18114
Can be obtained for each time zone.

That is, the amount of traffic per unit time between each base (office and company) is added for all applications, and the maximum traffic during a specific period is obtained for each base. Claim 8 is a recording medium which is executed by a predetermined computer and records a corporate network design support program, wherein the corporate network design support program includes:
For data communication between a plurality of communication bases connected to each other via a communication line such as a dedicated line, use information indicating a use state or a use request of the data communication for each application program controlling the data communication, and an application program According to an application information management procedure of inputting arrangement information of a server that relays or retains data transmitted by type, and according to a predetermined route recognition rule, data processed by each application program is obtained from the arrangement information of the server. An application data path calculation procedure for determining a data communication path to pass through, and, based on the data communication path and the usage information, a traffic volume of data communication for each application program between the plurality of communication bases, as application traffic information. An inter-base traffic information calculating procedure for obtaining the total traffic volume between the plurality of communication bases as inter-base traffic information based on the application traffic information calculating procedure, and the inter-base traffic information. And a communication network design support procedure for supporting the design of the communication base and communication equipment required between the communication bases.

The following operation is realized by executing the enterprise network design support program recorded on the recording medium by a predetermined computer. Application information management procedure
The use information and server arrangement information are input. In the application data path calculation procedure, a data communication path through which data processed by each application program passes is obtained from the server arrangement information according to a predetermined path recognition rule.

In the application traffic information calculation procedure, the amount of data communication traffic for each application program between the plurality of communication bases is obtained as application traffic information based on the data communication path and the usage information. In the inter-base traffic information calculation procedure, a total traffic volume between the plurality of communication bases is obtained as inter-base traffic information based on the application traffic information. The communication network design support procedure supports designing of the communication base and communication equipment required between the communication bases based on the traffic information between bases.

[0052]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS. This form corresponds to all claims. FIG. 1 is a block diagram showing the configuration of a corporate network design support apparatus 10000, FIGS. 2 and 3 are schematic diagrams showing a data configuration example of an application use information storage unit 15100, and FIG. 4 is a data configuration example of an application server information storage unit 15200. FIG.

FIG. 5 is a schematic diagram showing an example of the data configuration of the application data path calculation rule storage unit 17200.
FIG. 6 is a schematic diagram showing the contents of the condition table 17213 of FIG. 5,
FIG. 7 is a schematic diagram showing an example of the data configuration of the application data route information storage unit 17100, FIG. 8 is a schematic diagram showing an example of the data configuration of the application traffic information storage unit 18100, and FIG. 9 is the data of the inter-office traffic information storage unit 12100. It is a schematic diagram which shows a structural example.

FIG. 10 is a flowchart of an application use information input process, FIG. 11 is a flowchart of an application server information input process, FIG. 12 is a flowchart of an application data path information creation process, and FIG.
9 is a flowchart of an application traffic information creation process. FIG. 14 is a flowchart of the inter-office traffic information creation processing, FIG. 15 is a flowchart of the enterprise network automatic design processing, and FIG. 16 is a block diagram schematically showing an example of the configuration of the enterprise network.

In this embodiment, the application information management unit, the application data route calculation unit, the application traffic information calculation unit, the inter-base traffic information calculation unit, and the communication network design support unit according to the first aspect of the present invention each include an application information management unit 15000. , An application data route calculation unit 17000, an application traffic information calculation unit 18000, an inter-office traffic information calculation unit 12000, and an enterprise network automatic design unit 13000.

Further, the server information table of claim 2 is
It is embodied as a mail server information table 15213, and the gateway server information table of claim 4 is embodied as a gateway mail server information table 15212. Referring to FIG. 1, a corporate network design support device 10000
Are a control unit 10100, an input unit 10200, an output unit 10300, an enterprise network establishment information management unit 11000, an inter-office traffic information calculation unit 12000, an enterprise network automatic design unit 13000, an application information management unit 15000, and an application characteristic information management unit. 1600
0, an application data path calculation unit 17000 and an application traffic information calculation unit 18000.

The input unit 10200 controls input from a keyboard or a mouse. The output unit 10300 controls output to a display or the like. Corporate Network Office Information Management Department 11000
It has a company network establishment information storage unit 11100 that stores the name of each establishment in the corporate network and the location information of each establishment. The inter-office traffic information calculation unit 12000 includes an inter-office traffic information accumulation unit 12100 that accumulates a traffic volume between offices as inter-office traffic information.

The enterprise network automatic design unit 13000 has a function of designing an enterprise network so that the equipment cost of the exchanges and the running cost of the communication service in the enterprise network are minimized. The design results are stored in a design result storage unit 13100 provided in the enterprise network automatic design unit 13000. The application information management unit 15000 includes an application usage information storage unit 15100 and an application server information storage unit 15200. Application usage information storage unit 15100
Accumulates application usage information indicating the usage status or usage request of each application program.

Application server information storage unit 15200
Accumulates, as application server information, the arrangement of application servers that relay the traffic of each application program. The application characteristic information management unit 16000 includes an application usage information template storage unit 16100 and an application server information template storage unit 1
It has a 6200. The application usage information template storage unit 16100 stores template data of application usage information stored in the application usage information storage unit 15100.

Application server information template storage section 16
Reference numeral 200 stores the template data of the application server information stored in the application server information storage unit 15200. The application data path calculation unit 17000 includes an application data path information storage unit 17100 and an application data path calculation rule storage unit 17200.

The application data path calculation rule storage unit 17200 stores a logical path (hereinafter, referred to as a data path) generated by data communication of each application program and through which data passes.
The rule for determining the application data path is stored as an application data path calculation rule. The application data path information storage unit 17100 processes the individual application usage information stored in the application usage information storage unit 15100 based on the application data path calculation rules stored in the application data path calculation rule storage unit 17200, and Find the application data path where the data will occur. Further, the obtained application data path is stored as application data path information.

The application traffic information calculation section 18
000 finds the traffic volume between the offices for each application based on the application data path information stored in the application data path information storage unit 17100. The obtained traffic volume between the offices is stored in the application traffic information storage unit 18100 as application traffic information for each application.

The application traffic information calculation unit 18000 is provided with the application traffic information storage unit 1
From the application traffic information on all applications stored in the 8100, a time zone during which traffic peaks between offices is obtained, and a peak traffic volume is obtained. The control unit 10100 includes the corporate network design support device 100
The above-mentioned respective components of 00 are respectively controlled.

FIGS. 2 and 3 show examples of application usage information stored in the application usage information storage unit 15100. FIG. In this example, the application usage information storage unit 15100 stores a large number of application usage information 1511
0, 15120, 15130, ... are stored. The usage information input from the input unit 10200 is processed based on application usage information template data defined in advance in the application usage information template storage unit 16100, and the application usage information 15110, 15120, 15130,
Is converted to ... Therefore, the configuration of the application usage information 15110, 15120, 15130,... Is the same as the application usage information template.

The application usage information template data is defined for each type of application program. For example, for an electronic mail application, an electronic mail application usage information template is defined. Therefore, the configuration of the e-mail application usage information 15110, 15120, and 15130 is the same as the e-mail application usage information cone type in the application usage information template storage unit 16100.

The difference between the application usage information template of the e-mail and the application usage information template of another application is the name of the component of the application usage information described below. Is the same. Referring to FIG. 2, the application usage information 15110 includes an application name column 151.
11, application usage information number column 15112, originating office column 15113-1, receiving office column 15113-2, period column 15
113-3, mail number column 15113-4, mail size column 15113-
5 and a distribution graph 15114 are provided.

The application name column 15111 stores an application name for identifying the type of the application program. The application usage information number column 15112 stores a unique number of the application usage information 15110 in order to distinguish a plurality of pieces of application usage information. The name of the establishment that transmits the e-mail is stored in the transmission establishment column 15113-1. The column of the receiving establishment 15113-2 stores the name of the establishment that receives the e-mail. If the sending side or the receiving side is outside this company group, “outside the company” is stored in the column of the sending office 15113-1 or the receiving office 15113-2.

The period column 15113-3 stores the period of the application use status information input as the application use information 15110. Number of emails column 15113-4
During the period stored in the period column 15113-3, the transmission establishment stored in the transmission establishment column 15113-1 from the reception establishment 1
The number of mails transmitted to the receiving office stored in the column of 5113-2 is stored.

In the mail size column 15113-5, the mail 1 transmitted from the transmission establishment stored in the transmission establishment column 15113-1 to the reception establishment stored in the reception establishment column 15113-2 is displayed. The average value of the total capacity (number of bytes) is stored. The distribution graph 15114 shows the distribution of the number of mails per hour transmitted from the transmission establishment stored in the transmission establishment column 15113-1 to the reception establishment stored in the reception establishment 15113-2 column. The indicated data is stored.

The horizontal axis of the distribution graph 15114 is the period column 15113.
-3 corresponds to the time axis indicating the entire period stored. The vertical axis of the distribution graph 15114 indicates the value of the ratio of the number of mails normalized by setting the peak value of the number of mails per hour to 1. The configuration of the application usage information 15120 and 15130 is the same as that of the application usage information 15110.

In this example, application server information 15210, 15220 and 15230 are stored in the application server information storage unit 15200 as shown in FIG. Application server information 15210, application server information 15220, and application server information 1
5230 is e-mail, WWW and Notes, respectively.
(A program manufactured by Lotus Corporation).

That is, the arrangement of the application server is as follows.
Since it is determined independently for each type of application program, application server information is prepared for each type of application program as information for specifying the positional relationship between each application server and each business office. In this example, electronic mail, WWW and Notes application programs are used. When executing an application program for performing communication in addition to the above, it is necessary to prepare application server information for the application program.

Application server information 15210, 1522
Are the same as the application server information templates defined in advance in the application server information template storage unit 16200 for each type of application. Referring to FIG. 4, the application server information 15210 assigned to the e-mail application program includes an application name column 15211,
A gateway mail server information table 15212 and a mail server information table 15213 are provided.

The application name column 15211 stores an application name for identifying the type of the application program. The gateway mail server information table 15212 relays mail transmitted and received between a mail server (for example, the server A, server B, and server C in FIG. 16) of the office in the company group and a mail server outside the company. Information on the gateway mail server (for example, the server CG in FIG. 16) in the company group is stored.

Gateway mail server information table 15
The gateway mail server name column 15212-1 of 212 stores the name of the gateway mail server. The section 15212-2 of the gateway mail server location office stores the location of the gateway mail server on the same line stored in the section 115212-1 of the gateway mail server name.

The subordinate mail server name column 152122-3 stores the mail server name of the office in the corporate group which is relayed by the gateway mail server stored in the gateway mail server name 15212-1. Each row of the subordinate mail server location establishment column 15212-4 stores the name of the mail server location of the same row stored in the subordinate mail server name column 15212-3.

The mail server information table 15213 stores information about mail servers at offices in a corporate group. The mail server name column 15213-1 of the mail server information table 15213 stores the names of the mail servers in the company group. Column of mail server business office name
In each row of 15213-2, the name of the business office where the mail server is located in the same row stored in the mail server name column 15212-1 is stored.

In the column 15213-3 of the subordinate office name, the name of the office in which the e-mail client terminal in which the mail server in the same row stored in the mail server name column 15213-1 relays the e-mail exists. Is stored. FIG. 5 shows an example of a data configuration in the application data path calculation rule storage unit 17200.

Referring to FIG. 5, the application data path calculation rule storage unit 17200 stores electronic mail, WW
Application data path calculation rules 17210, 17220 and 17230 assigned to respective application programs of W and Notes are held.
These application data path calculation rules indicate rules for obtaining a path through which communication data passes, which is transmitted by execution of each application program.

Application Data Path Calculation Rule 17
Columns for application names 21011, 17220 and 17230 17221, 1
7221 and 17231 store the names of application programs in order to identify the types of application programs. The application data path calculation rule 17210 assigned to the e-mail application program includes an application name column 17211,
A variable table 17212 and a condition table 17213 are provided.

The condition table 17213 defines a conditional expression for obtaining an application data path through which application data passes. In the variable table 17212, variables associated with the contents of the conditional expressions in the condition table 17213 are defined. Calling establishment column 117 of variable table 17212
212-1 is assigned a variable to which the business establishment of application information whose application name stored in the application usage information storage unit 15100 is e-mail is substituted. The variable to which the receiving establishment of the application usage information is substituted is assigned to the receiving establishment column 11212-2.

Sending Office Mail Server Office 17212-
Column 3 is assigned with a variable to which the business establishment where the mail server of the business establishment to be substituted is substituted in the transmission business establishment column 17212-1 is substituted. Reception office Mail server
In the column of 17212-4, a variable to which the business office where the mail server of the receiving business office substituted in the receiving business office field 17212-2 is substituted is assigned.

In the column 17212-5 of the gateway mail server where the originating business mail server is located, the location of the gateway mail server to which the mail server of the originating business assigned in the field 17212-1 of the originating business depends is shown. The variable to be substituted is assigned. In the field 17212-6 of the gateway mail server location of the mail server of the receiving business, the location of the gateway mail server to which the mail server of the receiving business assigned to the field 17212-2 of the receiving business depends is shown. The variable to be assigned is assigned.

FIG. 6 shows the contents of the variable table 17212.
Referring to FIG. 6, the condition table 17213 includes a condition number column 17213-1, a condition expression column 17213-2, and an application data path column 17213-3. Condition number column 17213
-1 is assigned a number for identifying any one set of a large number of conditional expressions shown in the row of the matrix of the conditional table 17213, that is, the column 17213-2 of the conditional expression.

The conditional expression column 17213-2 stores a number of conditional expressions associated with each variable assigned to the variable table 17212. In each row of column 17213-3 of the application data path, an application data path associated with the conditional expression in the same row is stored. That is, when the conditional expression in the Nth row of the condition table 17213 is satisfied, the column 17213-
The contents of the Nth line of 3 indicate the actual application data path.

The application data path held in the column of the application data path 17213-3 expresses variables representing the business offices at both ends through which the application data passes by two-dimensional matrix elements. For example, the application data paths (A, X) and (X, B) of condition number 3 indicate that traffic occurs between the variables A and X and between the variables X and B, respectively.

For example, in the enterprise network shown in FIG. 16, when an e-mail is sent from the establishment C in the enterprise group to the establishment B, the variables A, X, B, and Y of the variable table 17212 are respectively set to “ “Office C”, “Office C”, “Office B”, and “Office D” are substituted. In this case, the variables A and B are both within the corporate group, the variables A and B are different, the variables A and X are equal, and the variables B and Y are different. I do.

Therefore, the application data path is obtained from the data (A, Y) and (Y, B) held in the application data path column on the fourth row. That is, between the “office C” substituted for the variable A and the “office D” substituted for the variable Y, and the “office D” substituted for the variable Y and “substituted for the variable B” A traffic is generated between each of them and the “business establishment B”.

Application data path information storage section 17
As shown in FIG. 7, application data path information 17 associated with each application program of e-mail, WWW, and Notes is stored in 100.
110, 17120, and 17130 are stored. The application data path information 17110, 17120, and 17130 hold, for each type of application program, information on a path where traffic occurs, obtained for each piece of application usage information stored in the application usage information storage unit 15100.

Application data path information 1711 assigned to the e-mail application program
0 has an application name column 17111 and an application data path matrix 17112. The application name column 17111 stores the name of an application program in order to identify one piece of application data path information 17110 from a plurality of pieces of application data path information 17110, 17120, 17130,.

Application data path matrix information 1711
2 stores a matrix having a matrix element of each business office and outside the company, which is held by the business office information storage unit 11100. When a route on which traffic occurs is determined based on each application usage information stored in the application usage information storage unit 15100, a matrix position indicating between two specific bases (office and business) included in the route The application usage information number of the application usage information is stored in the field.

For example, if the application usage information 15120 shown in FIG. 2 is processed, it is an e-mail from the establishment A to the establishment B. Therefore, in the configuration of the corporate network shown in FIG. And (Business establishment D, Business establishment B), the occurrence of traffic is detected. In this case, for the traffic between (office A, office D), the application data path matrix 1711 shown in FIG.
The application usage information number “2” is recorded in one element position specified by the column of the business establishment A and the row of the business establishment D of No. 2.

For traffic between (office D and office B), one of the data specified by the row of office D and the column of office B in the application data path matrix 17112 shown in FIG. “2” of the application usage information number is recorded at the element position. Application data path matrix
In 17112, since it is not necessary to distinguish between the transmitting side and the receiving side, the number of required matrix elements is only the number of combinations of two bases (office and non-company). Also, there is no need to record traffic between the same bases (offices and businesses).

In FIG. 7, the unused elements among the matrix elements of the application data path matrix 17112 are indicated by hatching. Here, the application data path information 17110 corresponding to the e-mail application program has been described, but the other application data path information 17120, 17130,... Have the same structure.

Application traffic information storage unit 18
8, as shown in FIG. 8, a large number of application traffic information 18110, 18120, 18130, 18140,.・ Is accumulated. Application traffic information 18110,18120,
Each of 18130, 18140, ... is associated with one matrix element of the application data path matrix 17112 shown in FIG.

That is, the application traffic information 18
Each of 110, 18120, 18130, 18140,... Is a distribution of the sum of the traffic amounts of the application usage information having the application usage information number stored in one matrix element of the application data path matrix 17112 for each time zone. Is held. Referring to FIG. 8, the application traffic information 18110 includes a column 18111 for an application name, a column 13112 between offices, and a traffic distribution table 18114.

[0097] In the application name column 18111 of the application traffic information 18110, the name of the application program is stored. In the column 13112 between the offices, the names of the offices at both ends of the traffic occurrence location, which are associated with the application traffic information 18110, are stored. The traffic distribution table 18114 is associated with the application traffic information 18110,
Traffic volume (bps) related to the location where traffic occurred
The data indicating the hourly distribution is held.

In practice, the traffic distribution table 18114
Indicates traffic between (Office B-Office D). Therefore, the application data path matrix 1711 shown in FIG.
The data held in the traffic distribution table 18114 based on the contents of the matrix elements (“1, 2, 3” in this example) in which “business establishment B” is a column and “business establishment D” is a row Is determined.

That is, the application data path matrix 17
Based on the data “1, 2, 3” held in one element 112, application usage information 15110 having an application usage information number of “1” and application usage information 15120 having an application usage information number of “2”
Then, the application usage information 15130 having the application usage information number “3” is referred to, and the contents of the data held in the traffic distribution table 18114 are determined based on these.

That is, the application usage information 1511
A value obtained by summing the values of the distribution graphs 0, 15120, and 15130 into traffic amounts for each unit time is stored as the contents of the traffic distribution table 18114. The configuration of the application data path information 18120, 18130, 18140,... Between other offices (or different applications) is the same as that of the application traffic information 18110.

FIG. 9 shows the data structure of the inter-office traffic information 12110 held in the inter-office traffic information storage unit 12100. Inter-office traffic information storage unit 12100
Accumulates the traffic volume between all offices as one inter-office traffic information 12110. The inter-office traffic information 12110 stores a matrix having a matrix element of each office and outside the company stored in the office information storage unit 11100.

Each matrix element of the inter-office traffic information 12110 has an application traffic report storage unit 18100.
, Which are obtained based on a large number of application traffic information 18110, 18120, 18130, 18140,... For example, e-mail, WWW and N
1210 traffic information about a company network using only three application programs
When the contents of a matrix element having the establishment B as a column and the establishment D as a row are obtained, the following processing is performed.

The contents of the respective traffic distribution tables (18114) of the electronic mail application traffic information 18110, the Notes application traffic information 18130, and the WWW application traffic information 18140 shown in FIG. The amount is added for each of the three application programs, e-mail, WWW, and Notes, for each unit time period, and the distribution of the total traffic amount for each time period is obtained.

In this distribution, the peak value of the traffic volume per unit time, that is, the peak traffic volume is finally stored as the value of one matrix element of the inter-office traffic information 12110. In the inter-office traffic information 12110, there is no need to distinguish between the originating side and the receiving side of the communication, so that only the number of combinations of two bases (offices and non-enterprises) is required as a matrix element. Further, the peak traffic volume between the same bases (the boarding point and outside the company) is unnecessary.

The inter-office traffic information 12110 shown in FIG.
In, the matrix elements that are not used are shaded. The application usage information storage unit 15100 shown in FIG.
FIG. 10 shows the contents of the “application use information input process” executed to accumulate the application use information.

In FIG. 10, the horizontal position at which each processing step is shown indicates the division of the component that executes the processing. For example, steps S11100, S11600, and S11700
Processed in 10200, steps S11200, S11550, S11750, ...
Are processed by the control unit 10100, and steps S11300, S11500,...
Is processed by the application information management unit 15000, and step S11400 is processed by the application characteristic information management unit 16000.

In FIG. 10, the vertical direction indicates the time axis, and each processing step is processed sequentially from top to bottom. The contents of the processing in FIG. 10 will be described below. When the application use information creation processing is started in step S11000, in the next step S11100, the input unit 1020
From 01, the application name (here,
An application usage information creation request is input together with the application name as e-mail).

In step S11200, control unit 10100 that has received the application usage information creation request together with the application name requests application information management unit 15000 to create application usage information together with the application name. In step S11300, the application information management unit 15000 that has received the application usage information creation request together with the application name requests the application characteristic information management unit 16000 for the application usage information template together with the application name.

Upon receiving the request for the application usage information template together with the application name, in step S11400, the application characteristic information report management unit 16000 reads from the application usage information template storage unit 16100 the application usage whose application name is “E-mail”. The information template is returned to the application management unit 15000. In step S11500, the application information management unit 15000 that has received the response of the application usage information template stores the application usage information template in the application usage information storage unit 15.
Store as application usage information in 100.

For example, when accumulating as the application usage information 15120 shown in FIG. 2, the application name column 15121 stores “E-mail” as the application name. In an application usage information number column 15122, “2”, which is an identification number that is uniquely identified from other application usage information, is stored.
Outgoing establishment column 15123-1, receiving establishment column 15123-2, period column 15123-3, number of mails column 15123-4, mail size column
No information is yet stored in 15123-5 and distribution graph 15124.

Further, the application usage information storage unit 15100 storing the application usage information release as application usage information determines in step S11550 that the control unit 1
Responds to 0100 to create application usage information. The control unit 10100 that has received a response to create application usage information
Requests the output unit 10300 to output the application usage information 15120 stored in the application usage information storage unit 15100 in step S11550. The output unit 10300 outputs the application usage information 15120.

The application use information 15120 is the output unit 1
After being output to 0300, in step S11600, the input unit 10200
From the application usage information transmission office column 1151
23-1, the receiving office column 15123-2, the period column 15123-3, the number of mails column 15123-4, the mail size column 15123-5, and the distribution graph 15124, respectively, the transmitting office name, the receiving business Enter the name of the place, the period entered in the distribution graph, the total number of mails sent from the sending office to the receiving office, the mail size, and the distribution of the number of mails per hour during the period entered in the field 15123-3. Is done.

Here, as the value in each time zone of the distribution graph, the value of the ratio of the number of mails in each time zone when the peak value of the number of mails for each time zone is set to 1 is input. In step S11700, the end of application use information input is input from input unit 10200 to control unit 10100.

The control unit 10100, which has received the input of the application use information, determines in step S11750 that the column 1
5123-1, receiving office column 15123-2, period column 115123-3,
It is requested that the input values to the mail number column 15123-4, the mail size column 115123-5, and the distribution graph 15124 be stored and accumulated in the application usage information 15120. In step S11770, the application information management unit 15000, which has received the request to store the input value in the application usage information 15120, stores the input value in the application usage information 15120.
The data is stored in the storage unit 120, and the storage of the application usage information is responded to the control unit 10100.

The control unit 10100, which has received the response to the end of the accumulation of the application usage information, outputs the output unit 103 in step S11790.
Requesting the end of the output of the application usage information 15120 to 00, the output unit ends the output of the application usage information 15120. After that, the control unit 10100 proceeds to step S11800
Then, the application use information creation processing ends, and the application use information creation processing ends in step S11900.

FIG. 11 shows the contents of the “application server information input process” executed to store the application server information in the application server information storage unit 15200 shown in FIG. In FIG. 11, the horizontal position at which each processing step is shown indicates the classification of the component that executes the processing. For example, steps S12100, S1260
0, S12700 are processed by the input unit 10200, and steps S12200, S1
2550, S12750,... Are processed by the control unit 10100, and
Are processed by the application information management unit 15000, and step S12400 is processed by the application characteristic information management unit 16000.

In FIG. 11, the vertical direction indicates the time axis, and each processing step is processed sequentially from top to bottom. The contents of the processing in FIG. 11 will be described below. After the application server information creation processing is started in step S12000, in step S12100, the input unit 10200
From the application name to the control unit 10100 (in this example,
A request for creating application server information is input together with “e-mail”.

In step S12200, control unit 10100 that has received the application server information creation request together with the application name requests application information management unit 15000 to create application server information together with the application name. In step S12300, the application information management unit 15000 having received the application server information creation together with the application name requests the application characteristic information management unit 16000 for the application server information template together with the application name.

In step S12400, the application characteristic information management unit 16000 receiving the application server information template request together with the application name stores the application whose application name stored in the application server information template storage unit 16200 is “e-mail”. Copy the server information template to the application information management
Respond to

Upon receiving the response of the application server information template, the application information management unit 15000 proceeds to step S
At 12500, the application server information template is stored in the application server information storage unit 15220 as application server information. For example, when accumulating as the application server information 15210 shown in FIG. 4, the application name “e-mail” is stored in the application name column 15211. However, nothing is yet stored in the gateway mail server information table 15212 and the mail server table 15213.

The application server information storage unit 15200 that has stored the application server information cone type as application server information determines in step S12500 that the control unit 1
The application server information creation is returned to 0100. Control unit 10 that has received a response to create application server information
100 requests the output unit 10300 to output the application server information 15210 stored in the application server information storage unit 15200 in step S12550. Output unit 10300
Outputs application server information 15210.

After the application server information 15210 is output to the output unit 10300, in step S12600, the input unit 102
From 00, the gateway mail server information table 15212
Is input in the following fields. In the gateway mail server name field 15212-1, the name of the gateway mail server (server CG) in the company that relays mail transmitted and received between the mail server in the company office and the mail server outside the company is input. .

In the column 15212-2 of the gateway mail server location, the column 15212 of the gateway mail server name is provided.
The name of the business establishment (business establishment C) where the gateway mail server is entered in -1 is input. Subordinate mail server name column
In 15212-3, enter the gateway mail server name field
The name of the mail server (“server A”, “server C” or “server D”) in the company to which the gateway mail server relayed in “1” is input is input.

Column 15212- of subordinate mail server business establishment name
4 shows the name of the business office where the mail server is located in the same row entered in the subordinate mail server name column 15212-3 (“Office A”,
“Office C” or “Office D”) is input. Also,
Information is input to each column of the mail server information table 15213 by the input unit 10200 as follows.

The mail server name column 15213-1 contains mail server names (server A, server C and server D) within the company.
Is entered. In each row of the mail server business establishment column 15213-2, the name of the business office where the mail server is located, which is indicated in the same row of the mail server name column 15213-1, is input.
In each row of the dependent office column 15213-3, the name of the office where the e-mail client terminal relayed by the mail server indicated in the same row of the mail server name column 15213-3 is input.

In step S12700, when “application server information input end” is input from input unit 10200 to control unit 10100, control unit 10100 instructs application information management unit 15000 to step S1260 in step S12750.
A request is made to store each of the data entered as 0 in the application server information 15210. That is, a gateway mail server name column 115212-1, a gateway mail server location office name column 15212-2, a subordinate mail server name column 15212-3, a subordinate mail server location office name column 1521244, and a mail server name column. Column 15213-1, column 15213-2 of the mail server business establishment name, and column 152 of the subordinate business establishment name
Request accumulation of each input value of 13-3.

The input value is set to the application server information 1521.
In step S12770, the application information management unit 15000 that has received the request stores and stores the input value in the application server information 15210 so that the application server information
Responds to 0. In step S12790, control unit 10100 having received the response to the end of application server information accumulation requests output unit 10300 to end output of application server information 15210. The output unit 10300 ends the output of the application server information 15210.

Thereafter, the control unit 10100 proceeds to step S12800
Ends the application usage information creation process. Thus, the application server information creation processing ends.
The application data path information storage unit 1710 shown in FIG.
FIG. 12 shows the contents of “application data path information creation processing” executed to accumulate application data path information.

In FIG. 12, the horizontal position at which each processing step is shown indicates the division of the component that executes the processing. For example, step S13050 is processed by the input unit 10200, steps S13100 and S13800 are processed by the control unit 10100,
Steps S13150, S13250, S13300,... Are processed by the application data path calculation unit 17000, and step S13200 is processed by the enterprise network establishment information management unit 11000.
Are processed by the application information management unit 15000.

In FIG. 12, the vertical direction indicates the time axis, and each processing step is processed sequentially from top to bottom. The contents of the processing in FIG. 12 will be described below. When the application data path information creation process is started in step S13000, the input unit
At 13050, an application data path information creation request is input to the control unit 10100 along with the application name (“e-mail” in this example).

Upon receiving the application data path information creation request together with the application name, the control unit 10100
In step S13100, the application data path calculation unit
Give application name to 17000 and request creation of application data path information. Application data path calculation unit 17 that has received a request to create application data path information together with the application name
000 is the company network establishment information management unit 111 in step S13150.
At 00, all business establishment names in the corporate network are requested.

In step S13200, the enterprise network establishment information management unit 11000, which has received the request for all the establishment names, converts all the establishment names stored in the enterprise network establishment information storage unit 11100 into the application data path calculation unit. Respond to 17000. Application data path calculation unit that received responses from all office names
In step S13250, the 17000 generates the application data path information 17110 and stores it in the application path information storage unit 17100.

At this time, the application name “E-mail” received from the control unit 10100 in S13100 is stored in the application name column 17111, and the application data path matrix 17112 is received from the enterprise network establishment information management unit 11100. A matrix having each business establishment and outside the company as matrix elements is stored. However, nothing is stored in each matrix element yet.

Then, in step S13300, the application data path calculation unit 17000 sends the application information management unit 15000 the application usage information number of the application usage information whose application name is “e-mail” requested by the control unit 10100. , Requesting sending and receiving establishments. Application information management unit 1500 that received a request for inspection of application usage information
In step S13350, application search information in which “e-mail” is stored in the application name column is sequentially searched from the information stored in the application use information storage unit 15100 in step S13350. Then, the application utilization information number, the transmitting office and the receiving office are returned to the application data path calculating unit 17000.

In step S13400, the application data path calculating unit 17000, which has received the response of the application usage information number, the transmitting office and the receiving office, transmits the application of the following information together with the information of the transmitting office and the receiving office. A request from the server information is requested to the application information management unit 15000. That is, the name of the establishment where the mail server to which the originating business depends is located (name of the establishment of the originating mail server), the name of the establishment where the gateway mail server to which the mail server belongs is located (the location of the gateway mail server of the originating mail server). Office name), the name of the office where the mail server to which the receiving office belongs is located (namely, the name of the office where the receiving mail server is located), and the name of the office where the gateway mail server to which the mail server belongs is located (gateway of the receiving mail server). Request search for mail server location).

Here, the application server information to be searched is determined according to the “e-mail” of the application name output by the control unit 10100 in step S13100.
It is limited to the application server information 15210 of “E-mail”.

In step S13450, the application information management unit 15000 that has received the search request enters “electronic name” in the application name column 15211 from the application server information 15210, 15220, and 15230 stored in the application server information storage unit 15200. Select the application server information 15210 in which "mail" is stored. From the application server information 15210, the name of the outgoing mail server, the name of the outgoing mail server gateway mail server, the name of the incoming mail server, and the name of the incoming mail server gateway mail server are searched. respond.

Application data path calculation section 1700 which received a response from application information management section 15000
In step S13500, 0 is processed as follows. That is, in step S13350, the application usage information storage unit 15100
The “transmitting business name” and the “receiving business name” received from the application data path calculation rule 17210 stored in the application data path calculation rule storage unit 17200 are stored in the variable A (transmission business ) And variable B (reception office).

Also, the “outgoing mail server location office name”, “outgoing mail server gateway mail server location office name”, “incoming mail server location office name” received from the application information management unit 15000 in step S13450, and In the variable table 17212 of the application data route calculation rule 17210, the variable X (mail server location of the sending office) and the variable V
(Submitting location of gateway mail server of mail server of originating business), variable Y (mailing location of mail server of receiving business), and variable W (setting of gateway mail server of mail server of receiving business) .

In this example, since the application name of the information to be processed is “E-mail”, the application data path calculation unit 17000 processes the application data path calculation rule 17210 to which “E-mail” is assigned as the application name. And Variable table 17212 of application data path calculation rule 17210
The application data path calculation unit 17200 that has completed the substitution for each of the variables
Variable table 17212 from column 17213-2 of conditional expression of 7213
Identifies any one conditional expression that matches the substitution value of each variable.

For example, in the enterprise network shown in FIG. 16, when an e-mail is sent from the establishment C in the enterprise group to the establishment B, the variables A, X, B, and Y of the variable table 17212 are respectively set to “ “Office C”, “Office C”, “Office B”, and “Office D” are substituted. In this case, the variables A and B are both within the corporate group, the variables A and B are different, the variables A and X are equal, and the variables B and Y are different. I do.

Therefore, the data (A, Y) held in the application data path column 17213-3 on the fourth line,
From (Y, B), an application data path is obtained. That is, between the “office C” substituted for the variable A and the “office D” substituted for the variable Y, and the “office D” substituted for the variable Y and “substituted for the variable B” Office B "
And "the occurrence of traffic" is detected.

The application data path calculation unit 17000 that has derived the application data path is in step S
13600, application data path information storage unit 17000
Application data path information 17 stored in
Of 110, 17120, 17130, application name column 17111
Then, the application data path information 17110 in which “e-mail” is stored is selected.

Then, the application data path information
The application usage information number is substituted for a specific matrix element of the application data path matrix 17112 of 17110. The positions of the matrix elements to be substituted are specified by two locations indicating the route derived in step S13550. The application data route calculating unit 17000 determines the application usage information number to be substituted, in step S13350.
Is the application usage information number received from the application usage information storage unit 1510.

For example, if the application usage information 15120 shown in FIG. 2 is to be processed, step S13550
Processing, as an application data path,
(Office A, Office D) and (Office D, Office B) are detected. Therefore, as shown in FIG. 7, the matrix position specified by the column of “office A” and the row of “office D” in the application data path matrix 17112, the row of “office D” and the “office The application use information number “2” of the application use information 15120 is assigned to the matrix position specified by the column “B”.

When the three sets of application usage information 15110, 15120, and 15130 of “E-mail” shown in FIGS. 2 and 3 are processed, the application data path matrix 17 shown in FIG.
In the column of “location B” and the row of “location D” identified by the row of “location B” 112, the application usage information 1511
The application usage information numbers “1,” “2,” and “3” of 0, 15120, and 15130 are substituted.

That is, in the example of FIG. 7, traffic is generated on the communication line between “office B” and “office D” for any of the three sets of application usage information 15110, 15120, and 15130. You can see that. Application data path matrix 1 of application data path information 17110
The application data path calculation unit 17000 that has finished substituting the application usage information number into the matrix element of 7112,
In step S13650, the application information management unit 15000
Request for confirmation of the presence or absence of unprocessed application usage information for which the application data path has not been calculated in the application usage information whose application name is “e-mail”.

When the application name is "E-mail",
For the unprocessed application usage information, the application information management unit 15000 that received the presence / absence confirmation request
In step S13700, the application usage information storage unit 15100 confirms the presence or absence of the corresponding application usage information, and returns the result. Regarding the presence or absence of the corresponding application usage information, the application data path information calculation unit 17000 that has received the response repeats the processing from steps S13300 to S13700 when there is unprocessed data. If there is no unprocessed data, the control unit 10100 is notified of the end of the application data path information creation processing in step S13750.

The control unit 10100, which has received the notification of the end of the application data path information creation processing, proceeds to step S13800.
Then, the application data path information creation processing ends. This completes the application data path information creation processing. In the above description, the case where the type of the application program is “e-mail” has been described.
Similarly, application data path information is created.

FIG. 13 shows the contents of “application traffic information creation processing” executed to accumulate application traffic information in the application traffic information accumulation section 18100 shown in FIG. In FIG. 13, the horizontal position at which each processing step is shown indicates the classification of the component that executes the processing.

For example, step S14050 is processed by the input unit 10200, steps S14100, S14700 are processed by the control unit 10100, steps S14200, S14300, S14350,... Are processed by the application traffic information calculation unit 18000, and step S14250 Is processed by the application data path calculation unit 17000, and step S14400 is processed by the application information management unit 15000.

In FIG. 13, the vertical direction indicates the time axis, and each processing step is sequentially processed from top to bottom. The contents of the processing in FIG. 13 will be described below. When the application traffic information creation processing is started in step S14000, in step S14050, the input unit 10
From 200, an application name (in this example, “e-mail”) and an application traffic information creation request are input to the control unit 1010.

In step S14100, control unit 10100 having received the application traffic information creation request outputs an application name and application traffic information creation request to application traffic information calculation unit 18000. The application traffic information calculation unit 18000, which has received the application traffic information creation request together with the application name, executes step S14200.
Then, it requests the application data path calculation unit 17000 to output information as follows.

Application data path information storage unit 17
Of application data path information 17110, 17120, 17130 stored in 100, each matrix of application data path matrix 17112 of application data path information that matches the specified application name (in this example, “e-mail”) For the element, a request is made to sequentially respond with the stored application usage information number, the business name of the row element and the business name of the column element.

Upon receiving the request for the application usage information number, the business name of the row element, and the business name of the column element, the application data path calculation unit 17000 proceeds to step S14250.
In the application data path information 17110, 17120, 1713
From 0, the application data path information 17110 that matches the specified application name (“e-mail” in this example) is selected.

Then, the application data path matrix
The application utilization information number stored in each matrix element of 17112, the business name of the row element and the business name of the column element are sequentially responded. In the following description, steps
In S14250, 1 of the application data path matrix 17112
Application usage information numbers “1”, “2”,
The case where “3”, the business name “business D” of the row element and the business name “business B” of the column element are returned will be described.

The application traffic information calculation unit 18000 having received the response of the application usage information number, the business name of the row element, and the business name of the column element, executes step S1430.
0, the application traffic information storage unit 18100
Generate application traffic information 18110. At this time, the “e-mail” of the application name received from the control unit 10100 in step S14100 is stored in the application name column 18111 of the application traffic information 18110. In the column 18112 between the offices, the application data path calculation unit in step S14250
Store the business name "business D" of the row element and the business name "business B" of the column element received from 17000. Nothing is stored in the traffic distribution table 18114 yet.

The application traffic information calculation unit 18000 that has generated the application traffic information 18110
Requests the application usage information corresponding to the application usage information numbers “1”, “2”, and “3” received in step S14250 to the application information management unit 15000 in step S14350. Application information management unit that has received a request for application usage information of application usage information numbers “1”, “2”, and “3”
In step S14400, the application usage information number column 15000 is stored in the application usage information storage unit 15100.
Application usage information 15110, 15120 in which “1,” “2,” and “3” are stored in 112, 15122, 15132,.
And 15130, the application traffic information calculation unit 1
Respond to 8000.

The application usage information 15110, 15120,
In step S14500, the application traffic information calculation unit 18000 having received the response of 15130 makes the distribution graphs 15114, 15114, and 15130 of the application usage information 15110, 15120, and 15130 available.
The ratio of the number of mails in each time zone in 15124 and 15134 is converted into a traffic volume (bps: bits / second). Application usage information distribution graphs 15114, 15124, and 1513
The method of converting 4 into the traffic volume (bps) is as follows.

The value of the ratio in each time zone X of the distribution graph is
Ratio (X), and the traffic volume in each time zone X is Ban
When d (X), the value of the mail number column of the application usage information is M, and the mail size column of the application usage information is S, the value of the traffic amount Band (X) in each time zone X Is obtained by the following first equation. Band (X) = (M / Total) Ratio (X) · S · 8 / (60 · 60) [bps] ··· (1) However, Total is the Ratio (X) from 0:00 to 23:00. The application traffic information calculation unit 17000 calculates the application usage information 15110, 1512
The ratio Ratio (X) of the number of mails in each time zone in each of the distribution graphs 15114, 15124, and 15134 of 0 and 15130 is converted into a traffic volume (bps).

Next, in step S14600, the application traffic information calculation unit 17000 calculates the traffic amount (b) in each time zone of each of the obtained distribution graphs 15114, 15124, and 15134.
ps), and the sum is substituted into the traffic distribution table 18114 of the application traffic information 18110. Application traffic information calculation unit 18000
The e-mail application data path information 1711
For all the matrix elements of the application data path matrix 17112 of 0, the processing from steps S14200 to S14600 is repeated to generate application traffic information.

Application data path information 17110
When the generation of the application traffic information is completed for all the matrix elements of the application data path matrix 17111, the application traffic information calculation unit 18000 notifies the control unit 10 of the end of the application traffic information creation processing in step S14650. Control unit
Upon receiving the notification of the end of the application traffic information creation processing, the 10100 ends the application traffic information creation processing in step S14700. This completes the application traffic information creation processing.

Here, only the case where the type of application program is “e-mail” has been described.
Similarly, application traffic information is created for other application programs. FIG. 14 shows the contents of the "inter-office traffic information creation process" executed to accumulate the inter-office traffic information on the inter-office traffic information accumulation unit 12100 shown in FIG.

In FIG. 14, the horizontal position at which each processing step is shown indicates the division of the component that executes the processing. For example, step S15050 is processed by the input unit 10200, steps S15100 and S15500 are processed by the control unit 10100,
Steps S15150, S15250, S15300,... Are processed by the inter-office traffic information calculation unit 12000, step S15200 is processed by the enterprise network office information management unit 11000, and step S15350 is performed.
Is processed by the application traffic information calculation unit 18000.

In FIG. 14, the vertical direction indicates the time axis, and each processing step is processed sequentially from top to bottom. The contents of the processing in FIG. 14 will be described below. When the application traffic information creation processing is started in step S15000, in step S15050, the input unit 10
From 200, the request for creating traffic information between offices is
Input to 00.

In step S15100, control unit 10100 that has received the inter-office traffic information creation request requests inter-office traffic information calculation unit 12000 to create inter-office traffic information. In step S15150, the inter-office traffic information calculation unit 12000, which has received the request for creating inter-office traffic information, requests all the office names from the enterprise network office information management unit 11000.

In step S15200, the enterprise network establishment information management unit 11000 that has received the request for the names of all establishments stores the names of all the establishments in the enterprise group stored in the enterprise network establishment information storage unit 11100. Responds to the inter-office traffic information calculation unit 12000. In step S15250, the inter-office traffic information calculation unit 12000 having received the responses of all the office names receives the response from the enterprise network office information management unit 11100, and has Office traffic information
12120 is generated and stored in the inter-office traffic information storage unit 12100. At this time, nothing is stored in each matrix element yet.

In step S15300, the inter-office traffic information calculation unit 12000, which has generated and stored the inter-office traffic information 12120, determines, for each matrix element of the inter-office traffic information 12120, the establishment of the row element and the column element. Request the application traffic information calculation unit 18000 for the application traffic information between the offices. In the following description, in step S15300, the establishment B and the establishment D
Suppose that we have requested application traffic information during.

Application traffic information calculation unit 18000 receiving a request for application traffic information
In step S15350, based on the application traffic information stored in the application traffic information storage unit 18100, the application traffic information 18110, 1
Responds 8130 and 13140.

Application traffic information 18110,1
In step S15400, the inter-office traffic information calculation unit 12000 that has received 8130 and 18140 inputs the traffic volume stored in the traffic distribution table 18114 of the application traffic information 18110, 18130, and 18140 to a predetermined application traffic characteristic function. Then, a traffic volume reflecting characteristics of each application (for example, traffic burstiness) is obtained.

Further, with respect to the traffic volume obtained here, the traffic volume of all application programs is added for each unit time zone, and the distribution of the total inter-office traffic volume for each time zone is obtained. Next, a peak value of the traffic amount is obtained from the distribution of the inter-office traffic amount for each time zone. This peak value is substituted into the matrix elements (office B, office D) of the interoffice traffic information 12120 stored in the interoffice traffic information storage unit 12100.

The inter-office traffic information calculation unit 12000
Step S153 is performed so that the inter-office traffic information is substituted for all the matrix elements of the inter-office traffic information 12120.
The processing from 00 to S15400 is repeated. In step S15420,
It is determined whether or not the processing of all the matrix elements of the inter-office traffic information 12120 has been completed. Traffic information between offices
After the substitution of all the matrix elements in 12110, the inter-office traffic information calculation unit 12000 notifies the control unit 10100 of the end of the inter-office traffic information creation in step S15450.

In step S15500, control unit 10100 that has received the notification of the end of the inter-office traffic information creation ends the inter-office traffic information creation process. This completes the inter-office traffic information creation processing. FIG. 15 shows the contents of the “enterprise network automatic design processing” executed after the processing of FIG. 14 is completed in order to actually design the enterprise network.

In FIG. 15, the horizontal position at which each processing step is shown indicates the division of the component that executes the processing. For example, step S16050 is processed by the input unit 10200, steps S16100 and S16450 are processed by the control unit 10100,
Steps S16150, S16250, S16340, ... are the company network automatic design department
13000, step S16200 is processed by the application traffic information calculation unit 18000, and step S1630
0 is processed by the enterprise network office information management unit 11000.

In FIG. 15, the vertical direction indicates the time axis, and each processing step is processed sequentially from top to bottom. The contents of the processing in FIG. 15 will be described below. When the automatic enterprise network design process is started in step S16000, in step S16050, the input unit 10200 is used to set up a business establishment serving as an access point between the inside and outside the enterprise group to be designed (hereinafter referred to as an access point business). ) And the automatic design request of the corporate network
Entered as 0.

For example, when designing the corporate network shown in FIG. 16, the name of “business establishment C” in which the gateway server CG is installed is input to the control unit 10100 as an access point business establishment name. In step S16100, the control unit 10100 that has received the request for automatic design of the corporate network,
At 00, an automatic design of a corporate network is requested together with the name of the access point establishment (in this example, “office C”).

The company network self-design section 13000 receiving a request for automatic design of the company network along with the name of the access point establishment
Is the inter-office traffic information calculation unit in step S16150.
Requests inter-office traffic information in 12000. In step S16200, the inter-office traffic information calculation unit 12000 that has received the request for inter-office traffic information returns the inter-office traffic information 12110 stored in the inter-office traffic information storage unit 12100.

In step S16250, the enterprise network automatic design unit 13000 receiving the response to the inter-office traffic information 12110 requests the enterprise network establishment information management unit 11000 for enterprise network establishment information. In step S16300, the enterprise network establishment information management unit 11000 that has received the request for the enterprise network establishment information returns the enterprise network establishment information stored in the enterprise network establishment information storage unit 11100.

In step S16320, the enterprise network self-designed design unit 13000 that has received the response of the enterprise network establishment information obtains the total traffic between the inside and outside the enterprise group of the enterprise network to be designed. For example, in the case of the enterprise network shown in FIG. 16, the traffic volume between the outside of the enterprise and the establishment C which is the access point establishment is obtained.

Actually, traffic information between offices 12110
Among the matrix elements of (1), matrix elements (outside company, office A), (outside company, office B), (outside company, office C) and (outside company, office D) ) Is added to the traffic amounts stored respectively to obtain the sum of them. In the next step S16340, among the matrix elements of the inter-office traffic information 12110, each matrix element having "outside the company" as a row element is processed as follows.

The traffic volume of the matrix element (outside the company, office A) is added to the value of the matrix element of (access point office, office A) or (office A, access point office), and the matrix element is added. The traffic volume of (off-company, office B) is added to the matrix element of (access point office, office B) or (office B, access point office), and the matrix element (off-company, office C) is added. )
The traffic volume of the matrix element (outside the company, office D) is added to the matrix element of (access point office, office C) or (office C, access point office), and the (Business establishment) or (business establishment D, access point business establishment).

As a result, the traffic volume of each business office with the outside of the company is determined by the business office (see FIG.
In the example of No. 6, it is added to the traffic volume between the “business establishment C”) and each business establishment.

The enterprise network self-designed design unit 13000, which has added the amount of traffic outside the enterprise at each establishment to the amount of traffic between the access point establishment and each establishment, obtains the enterprise network establishment information received in step S16300. Based on the location information of each office included in, to satisfy the traffic volume between each office shown in the inter-office traffic information 12110, and, as equipment cost and running cost is minimized,
Automatically design corporate networks.

The design result is stored in the design result storage unit 13100. Then, the enterprise network automatic design unit 13000 notifies the control unit 10100 of the end of the enterprise network automatic design (step S1636).
0). Note that the enterprise network automatic design processing in step S16360 can be realized by employing a conventionally known algorithm. In step S16450, control unit 10100 that has received the notification of the completion of the enterprise network automatic design ends the enterprise network automatic design processing. This completes the enterprise network automatic design process.

By registering access point positions of various providers in the corporate network design support apparatus 10000,
Alternatively, by inputting the position of the access point of various providers, in step S16360 of the enterprise network automatic design process, the traffic volume between the outside company and the access point office obtained in S16320 is satisfied, and
It is possible to design a line between an access point of a provider that minimizes equipment costs and running costs and an access point office.

[0186]

As described above, according to the present invention, the following effects can be obtained. 1. It is possible to design a corporate network by using the usage status (or usage request) of each application used in the company or the application usage status (or usage request) expected when a new application is introduced, The work of estimating the traffic volume between the offices from the use status (or use request) of the application becomes unnecessary.

[0187] 2. A corporate network that reflects the location of an application server that relays application data between a transmitting site (outside of a business or company) that transmits data using an application and a receiving site (outside of a business or company) that receives data Can be designed. 3. From the application usage status (or usage request), it is possible to obtain the traffic volume for each time zone,
It is possible to design a more accurate enterprise network in consideration of the fluctuation of the traffic volume for each time zone.

4. Since the amount of intra-company traffic generated by communications between offices within the company and the amount of traffic outside the company generated by communications outside the company can be managed separately, the amount of non-company traffic generated between each office and outside the company can be managed. In the case where the amount is passed through a business site serving as a selected access point, it is possible to design a corporate network from the traffic volume between business sites. In addition, it is possible to obtain the required line speed (communication capacity) between the business establishment serving as the access point and the outside of the company.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a corporate network design support device 10000.

FIG. 2 is a schematic diagram illustrating a data configuration example of an application usage information storage unit 15100.

FIG. 3 is a schematic diagram illustrating a data configuration example of an application usage information storage unit 15100.

FIG. 4 is a schematic diagram illustrating a data configuration example of an application server information storage unit 15200.

FIG. 5 is an application data path calculation rule storage unit.
17 is a schematic diagram showing an example of the data configuration of 17200. FIG.

FIG. 6 is a schematic diagram showing contents of a condition table 17213 in FIG. 5;

FIG. 7 is an application data path information storage unit 17100
FIG. 4 is a schematic diagram showing an example of the data configuration of FIG.

FIG. 8 is an application traffic information storage unit 18100
FIG. 4 is a schematic diagram showing an example of the data configuration of FIG.

FIG. 9 is a schematic diagram illustrating a data configuration example of an inter-office traffic information storage unit 12100.

FIG. 10 is a flowchart of an application use information input process.

FIG. 11 is a flowchart of an application server information input process.

FIG. 12 is a flowchart of an application data path information creation process.

FIG. 13 is a flowchart of an application traffic information creation process.

FIG. 14 is a flowchart of an inter-office traffic information creation process.

FIG. 15 is a flowchart of a corporate network automatic design process.

FIG. 16 is a block diagram schematically illustrating a configuration example of a corporate network.

FIG. 17 is a block diagram showing a configuration of a conventional enterprise network design support device 20000.

18 is a schematic diagram illustrating a data configuration of a traffic information storage unit between offices in FIG. 17;

FIG. 19 is a flowchart showing processing of the enterprise network design support device 20000 of FIG. 17;

[Explanation of symbols]

10000, 20000 Corporate network design support device 10100, 20100 Control unit 10200, 20200 Input unit 10300, 20300 Output unit 11000, 21000 Corporate network office information management unit 11100 Corporate network office information storage unit 12000 Inter-office traffic information calculation unit 12100 Inter-office traffic information storage unit 12110 Inter-office traffic information 13000, 23000 Enterprise network automatic design unit 13100 Design result storage unit 15000 Application information management unit 15100 Application usage information storage unit 15114, 15124, 15134 Distribution graph 15200 Application server information storage unit 15210, 15220, 15230 Application server information 15213 Mail server information table 15212 Gateway mail server information table 16000 Application characteristic information management unit 16100 Application usage information template storage unit 16200 Application server information template storage unit 17000 Application data path calculation unit 17100 Application data path information storage unit 17110, 17120, 17130 Application data path information 17112 Application data path matrix 17210, 17220, 17230 Application data path calculation rule 17212 Variable table 17213 Condition table 17200 Application data path calculation rule storage unit 18000 Application traffic information calculation unit 18100 Application traffic information storage section 18110, 18120, 18130, 18140 Application traffic information 18114 Traffic distribution table 22000 Inter-office traffic information management section

Claims (8)

[Claims] 2. Description of the Related Art Data communication between a plurality of communication bases connected to each other via a communication line such as a dedicated line indicates usage status or usage request of data communication for each application program controlling the data communication. Information and application information management means for inputting arrangement information of a server that relays or retains data transmitted for each type of application program; and, according to a predetermined path recognition rule, the application information of each server from the arrangement information of the server. Application data path calculation means for obtaining a data communication path through which data to be processed passes; and, based on the data communication path and the usage information, determining an amount of data communication traffic between the plurality of communication bases for each application program. Traffic Application traffic information calculation means for obtaining as traffic information; inter-base traffic information calculation means for obtaining the total traffic volume between the plurality of communication bases as base-to-base traffic information based on the application traffic information; An enterprise network design support device, comprising: communication network design support means for supporting the design of the communication base and communication equipment required between the communication bases based on information. 2. The enterprise network design support apparatus according to claim 1, wherein said application data path calculation means determines the usage information based on contents of a server information table indicating a correspondence between the communication base and the server. A corporate network comprising comparing a communication base on a transmitting side and a receiving side of included data communication with a location of the server used at the communication base, and obtaining the data communication path according to a result of the comparison. Design support equipment. 3. The enterprise network design support device according to claim 1, wherein the originating site and the receiving site of the data communication included in the usage information are either inside or outside a group divided by a predetermined gateway server as a boundary. Wherein the application data path calculation means obtains a data communication path according to whether the application data path belongs to the enterprise network design support apparatus. 4. The enterprise network design support apparatus according to claim 2, wherein said application data path calculating means is configured to execute a process based on a content of a gateway server information table indicating a correspondence between said server and a predetermined gateway server.
An enterprise network design support apparatus, wherein the location of a server used at a communication base is compared with the location of the gateway server used by the server, and a data communication path is determined according to the result of the comparison. 5. The enterprise network design support device according to claim 3, wherein said communication network design support means communicates outside of a group partitioned by said gateway server as a boundary and each communication within said group. An enterprise network design support device, wherein a total traffic volume between an outside of a group and an inside of a group is obtained as outside-group traffic information based on a plurality of inter-base traffic information between the sites. 6. The enterprise network design support device according to claim 3, wherein said communication network design support means communicates outside of a group divided by said gateway server as a boundary and each communication within said group. A corporate network design support device, wherein inter-base traffic information between bases is added to inter-base traffic information between communication bases in the group. 7. The enterprise network design support device according to claim 1, wherein said application traffic information calculation means determines the communication base of said communication base on the basis of a plurality of communication amounts for each predetermined time zone included in said usage information. An enterprise network design support apparatus characterized in that an amount of data communication traffic for each application program is obtained as application traffic information for each time zone. 8. A recording medium for storing a corporate network design support program executed by a predetermined computer, wherein the plurality of media are connected to the corporate network design support program via a communication line such as a dedicated line. Regarding data communication between communication bases, use information indicating the use status or use request of data communication for each application program that controls data communication, and the arrangement of servers that relay or hold data transmitted by type of application program An application information management procedure for inputting information; an application data path calculation procedure for obtaining a data communication path through which data processed by each application program passes from the server arrangement information in accordance with a predetermined path recognition rule; Communication path and Application traffic information calculation procedure for obtaining, as application traffic information, a traffic volume of data communication for each application program between the plurality of communication bases based on the application information; and the plurality of communication bases based on the application traffic information. A traffic information calculation procedure for obtaining the total traffic volume between the bases as traffic information between bases, and supporting the design of the communication bases and communication equipment required between the communication bases based on the traffic information between bases. A recording medium storing a corporate network design support program, comprising a communication network design support procedure.