JP2010206483A - Network system and method for automatically creating and setting virtual network interface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a network system capable of easily creating and setting a virtual network interface, and a method for automatically creating and setting the virtual network interface. <P>SOLUTION: A network system includes: an implementation information storage means 105 for storing implementation information associating address information designated from an application and address information of a virtual network with each other; and a virtual network interface implementation means 103 for performing settings by reading corresponding virtual network information from the implementation information storage means, in response to a request of the application, based on address information included in the request. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a network system and a method for automatically creating and setting a virtual network interface, and more particularly to a management technique for a virtual network interface.

  In an installed system, when a new application is additionally installed, existing network and server facilities are often diverted to reduce facility costs. At this time, depending on the type of application, existing physical equipment such as wiring may be used, but it may be more convenient to separate IP (Internet Protocol) addresses and logical networks. At this time, a virtual network interface is created for the application on the server or client, and the application is set to use the virtual network interface. The virtual network interface uses a tag VLAN (Tag-Virtual Local Area Network) to logically divide the network.

  In this case, when creating a virtual network interface, the user needs to create a virtual network interface in which the network address, subnet mask, VLAN-ID (VLAN number), etc. according to the application are set in advance on both the server and the client. There is. In particular, when the number of clients is large or the number of applications is large, the number of virtual network interfaces is large, and the setting becomes complicated. Further, when an application change occurs, a setting change of the virtual network interface occurs, and there is a possibility that the application becomes unusable due to a setting mistake.

  One means for automating the setting of such a virtual network interface is proposed in Patent Document 1. The setting means disclosed in Patent Document 1 is a means in the terminal, and dynamically sets the VLAN when the terminal is connected to the network. The setting method is performed when the VLAN-ID is sequentially flowed to the network and is correct. This is a method for making a response. Therefore, it is necessary to create a virtual network interface in advance, and there is a problem that improvement in performance is necessary. Also, this method cannot be used if there are multiple applications.

  Patent Document 2 discloses means for optimizing a virtual network by autonomously dividing or moving a virtual hub. However, that means is implemented in a virtual hub. Also, creation and setting of the virtual network interface must be performed manually by the user, and cannot be performed automatically.

  Patent Document 3 uses a process in which a terminal device creates virtual physical addresses and IP addresses as many as the number of virtual IP telephone terminals and the created virtual physical addresses and IP addresses. A process for connecting a plurality of virtualized IP telephone terminals to a main apparatus via a network is disclosed. However, it is necessary to perform terminal setting in all terminals.

JP 2007-243740 A JP 2008-42665 A JP 2008-78873 A

  In each of the prior arts, creation and setting of a virtual network interface cannot be easily performed.

  The present invention has been made to solve such problems, and provides a network system capable of easily creating and setting a virtual network interface and a method for automatically creating and setting a virtual network interface. For the purpose.

  The network system according to the present invention includes realization information storage means for storing realization information in which address information specified by an application and virtual network address information are associated with each other, and is included in the request according to the request of the application. Virtual network interface realization means for reading out and setting corresponding virtual network information from the realization information storage means based on the address information to be set.

  The server according to the present invention is included in the request according to the request of the application, the realization information storage means for storing the realization information in which the address information specified by the application and the address information of the virtual network are associated with each other. Virtual network interface realization means for reading out and setting corresponding virtual network information from the realization information storage means on the basis of the address information.

  A method of automatically creating and setting a virtual network interface according to the present invention includes a step of receiving a network use request from an application, and based on address information included in the use request, the address information based on preset implementation information. The method includes a step of specifying the associated virtual network information and a step of setting the specified virtual network information.

  According to the present invention, a virtual network interface automatic creation and setting program includes a step of receiving a network use request from an application, and the address information based on pre-set implementation information based on address information included in the use request. And a step of specifying the virtual network information associated with and a step of setting the specified virtual network information.

  ADVANTAGE OF THE INVENTION According to this invention, the network system which can perform creation and setting of a virtual network interface easily, and the automatic creation and setting method of a virtual network interface can be provided.

1 is a system configuration diagram showing an overall configuration of a network system according to an embodiment of the invention. It is a schematic diagram which shows the hardware constitutions of the server contained in the network system concerning embodiment of invention. It is a schematic diagram which shows the hardware constitutions of the network system concerning embodiment of invention. It is a flowchart which shows the flow of a process of the network system concerning embodiment of invention. It is a flowchart which shows the flow of a process of the network system concerning embodiment of invention. It is a schematic diagram which shows the hardware constitutions of the server contained in the network system concerning a specific example. It is a table which shows the content of the concrete information stored in the concrete information storage means of the server contained in the network system concerning a specific example. In the network system concerning embodiment of invention, it is explanatory drawing which shows the state which transmits realization information from a server to a client.

  FIG. 1 is a system configuration diagram showing an overall configuration of a network system according to the present embodiment. The network system includes a server 1000 and a client 3000 connected to the server 1000 via a network 2000. The server 1000 and the client 3000 communicate via the network 2000. When the application 101 operates on the server 1000 and the application 301 operates on the client 3000, the application 101 and the application 301 communicate with each other.

  2 and 3 schematically show a hardware configuration of the network system according to the present embodiment.

  FIG. 2 is a schematic diagram relating to the hardware configuration of the server. As illustrated in FIG. 2, the server 1000 includes an application 101, a virtual network interface 102, a virtual network interface implementation unit 103, a physical network interface 104, and an implementation information storage unit 105.

  The application 101 is an application software program that runs on the server 1000. The virtual network interface 102 is an interface representing a network used by the application 101. The virtual network interface realizing unit 103 is a processing unit that implements a virtual network interface in response to a request. The virtual network interface implementing means 103 is realized by causing a computer to execute a predetermined software program. Such a software program can be stored in a portable recording medium such as a CD-ROM and can be transmitted over a network.

  The physical network interface 104 is an interface that processes a physical network included in the server 1000. The realization information storage means 105 is a storage means for storing realization information for realizing the virtual network interface.

FIG. 3 is a schematic diagram relating to the hardware configuration of the server and the client according to the present embodiment. As shown in FIG. 3, the server 1000 further includes an IP address issuing unit 106 and a realization information transmission cooperation unit 107 in addition to the configuration of FIG. 1.
The IP address issuing means 106 is realized by, for example, DHCP (Dynamic Host Configuration Protocol), which issues an IP address between the client and the server.

  The realization information transmission cooperation means 107 is a processing means for transmitting realization information to the client 3000 in cooperation with the IP address issuing means 106. More specifically, the realization information transmission cooperation unit 107 reads the realization information preset by the user from the realization information storage unit 105 and cooperates with the function of the IP address issuing unit 106 to obtain the realization information. The information is distributed to the client 3000 so that the realization information of the server 1000 can be used by the client 3000. It functions as realization information transmitting means for transmitting the realization information stored in the realization information storage means 105 by the IP address issuing means 106 and realization information transmission cooperation means 107 to the client.

  The virtual network interface realization means 103 of the server 1000 reads the realization information set in advance by the user from the realization information storage means 105 when the application 101 is activated on the server 1000 and requests a network port. The virtual network interface 102 used by 101 is automatically implemented. The realization information storage unit 105 is configured by a database, for example, which stores realization information in a storage area.

  The client 3000 includes an application 301, a virtual network interface 302, a virtual network interface realization unit 303, a physical network interface 304, a realization information storage unit 305, a payout IP address reception unit 307, and realization information reception cooperation. Means 306 are provided.

  The application 301 communicates with the application 101 of the server 1000. The virtual network interface 302 is an interface representing a network used by the application 301. The virtual network interface realizing unit 303 creates a virtual network interface and sets a network. The virtual network interface realizing unit 303 in this example is similar to the virtual network interface realizing unit 103 of the server 1000, and the realization information is stored in the realization information storage unit 305 when the application 301 is started to perform network communication. The virtual network interface 302 used by the application 301 is automatically realized. The virtual network interface realizing unit 303 is realized by causing a computer to execute a predetermined software program. Such a software program can be stored in a portable recording medium such as a CD-ROM and can be transmitted over a network.

  The physical network interface 304 is an interface that processes a physical network included in the client 3000. The realization information storage unit 305 is a storage unit that stores realization information acquired from the server 1000. The realization information storage unit 305 is configured by, for example, a database that stores realization information in a storage area. The payout IP address receiving means 306 is a receiving means corresponding to the IP address payout means 106. The payout IP address receiving means 306 is realized by, for example, DHCP, which pays out an IP address between the client and the server.

  The realization information receiving cooperation unit 307 acquires realization information on the server 1000 by cooperating with the payout IP address reception unit 306 on the client 3000 and stores it in the realization information storage unit 305 in the client 3000. The payout IP address receiving means 306 and the realization information receiving cooperation means 307 function as realization information receiving means for receiving realization information transmitted from the server 1000 and storing it in the realization information storage means 305 of the client. .

  Note that the configurations shown in FIGS. 2 and 3 are examples for schematically configuring the present embodiment, and the present invention is not limited to such a hardware configuration.

The processing flow of the network system according to the present embodiment will be described with reference to the flowcharts of FIGS.
The flowchart of FIG. 4 shows the flow of processing when the virtual network interface implementing means 103 implements the virtual network interface 102.

  First, when the application 101 is activated on the server 1000, the application 101 makes a use request for a network used by itself (step A1). The network use request includes address information such as an IP address and a port. The virtual network interface realization means 103 that has received the use request reads the realization information from the realization information storage means 105 (step A2).

  The virtual network interface realization means 103 compares the requested address information (port information) with the realization information, and specifies the virtual network interface 102 that realizes the realization (step A3). Specifically, virtual network address information associated with the requested address information is extracted. After the identification, the virtual network interface realizing unit 103 determines whether or not the virtual network interface 102 has been realized (step A4).

  If the virtual network interface 102 has not been realized, the virtual network interface realizing means 103 realizes the virtual network interface 102 according to the realization information (step A5). When the virtual network interface 102 is implemented or has been implemented, the virtual network interface implementation unit 103 returns the processing to the application, and the application 101 uses the implemented virtual network interface 102 to perform networking. Processing is performed (step A6).

  The virtual network interface realizing unit 303 on the client 3000 also performs the same operation as in FIG. In other words, when the application 301 is activated on the client 3000, the application 301 makes a use request for a network used by itself. The virtual network interface realization means 303 that has received the use request reads the realization information from the realization information storage means 305. The virtual network interface realization means 303 compares the requested address information with the realization information, and specifies the virtual network interface 302 that realizes the realization. After the identification, the virtual network interface realizing unit 303 determines whether the virtual network interface 302 has been realized. If the virtual network interface 302 has not been implemented, the virtual network interface implementation unit 303 implements the virtual network interface 102 according to the implementation information. When the virtual network interface 302 is realized or has been realized, the virtual network interface realizing unit 303 returns the processing to the application, and the application 301 uses the realized virtual network interface 302 to perform networking. Process.

The flowchart of FIG. 5 shows the flow of processing of the realization information transmission cooperation means 107, the IP address payout means 106, the payout IP address reception means 306, and the realization information reception cooperation means 307.
First, when the client 3000 is activated, the payout IP address receiving means 306 requests the IP address paying means 106 to pay out an IP address (step B1).

  When the IP address issuing unit 106 receives the request (step B2), the realization information transmission cooperation unit 107 that recognizes the reception acquires the realization information from the realization information storage unit 105 (step B3). After the acquisition, the realization information transmission cooperation unit 107 passes the realization information to the IP address issuing unit 106. The IP address issuing means 106 receives the realization information from the realization information transmission cooperation means 107, and returns the IP address and realization information as a response to the IP address request process (step B1) (step B4).

  When the payout IP address receiving unit 306 receives the response (step B5), the realization information receiving cooperation unit 307 that recognizes the reception stores the received realization information in the realization information storage unit 305 (step B6). . In this way, the virtual interface realization information on the server 1000 can be distributed to the client 3000. As a result, even when the virtual network settings are changed, it is only necessary to correct the realization information on the server 1000, and the cost of user operation management and the risk of setting errors can be reduced.

Next, a processing flow of the network system according to the present embodiment will be described using a specific example.
First, a diagram used as a specific example will be described. FIG. 6 shows a specific example in the server 1000, and it is assumed that the application App1 is executed. The application App1 uses the IP address (192.168.16.100) and the port (2345) described in FIG. 6 as network ports. The application App1 uses the virtual network interface VI1, and the actual communication uses the physical network interface PI1.

  FIG. 7 shows the contents of the realization information stored in the realization information storage means 105 in the server 1000. The realization information includes an IP address, a port, a virtual network interface name (virtual network interface identification information), a network address, a subnet mask, and VLAN-ID (VLAN identification information). The IP address and port are information passed from the application 101 when the network is used, and the realization information is searched using this combination as a key. The network address, subnet mask, and VLAN-ID are virtual network interface setting information to be created, and the virtual network interface 102 is initialized based on this setting.

  FIG. 8 shows a specific example in which the realization information is transmitted from the server 1000 to the client 3000. As illustrated in FIG. 8, the realization information transmission cooperation unit 107 transmits realization information together with the IP address to the client 3000 in cooperation with the IP address issuing unit 106 on the server 1000. The client 3000 cooperates with the payout IP address receiving unit 306, and the realization information reception cooperation unit 307 receives the realization information.

Next, a specific operation will be described with reference to FIGS.
In FIG. 6, when the application App1 is activated on the server 1000, the App1 requests use of the network (Step A1 in FIG. 4). Here, it is assumed that the application App1 requests use of the IP address 192.168.16.100 and the port number 2345. When the request is made, the virtual network interface implementation means 103 acquires the implementation information held in the implementation information storage means 105 (step A2 in FIG. 4).

  As a result of the acquisition, the realization information of the contents shown in FIG. 7 is acquired (see FIG. 7). Next, the virtual network interface embodying means 103 compares the request contents with the embodying information, and specifies the virtual network interface to be embodyed (step A3 in FIG. 4). In this case, VI1 is specified. After identification, it is confirmed whether or not the virtual network interface VI1 has been created (step A4 in FIG. 4).

  If the virtual network interface VI1 has not been created, the virtual network interface implementation unit 103 creates the virtual network interface VI1 according to the implementation information, and generates a network address 192.168.16.255 and a subnet mask 255.255.240. 0 and VLAN-ID1 are set (step A5 in FIG. 4). Thereby, the virtual network interface VI1 is realized, and the application App1 can use the virtual network interface VI1.

  The client 3000 can also create the virtual network interface VI1 by the same operation as described above, and the application 101 and the application 301 can communicate using the same network.

  In FIG. 8, for example, when the client 3000 is activated, the payout IP address receiving unit 306 requests an IP address from the IP address issuing unit 106 on the server 1000 (step B1 in FIG. 5). When the IP address issuing means 106 receives the request (step B2 in FIG. 5), the realization information transmission cooperation means 107 acquires the realization information from the realization information storage means 105 (step B3 in FIG. 5). At this time, a specific example of the realization information is shown in FIG. The realization information transmission cooperation means 107 passes the realization information to the IP payout means 106, and the IP payout means 106 sends out the realization information together with the IP information and returns it to the IP address reception means 306 (step B4 in FIG. 5, FIG. 7). reference). When the payout IP address receiving means 306 receives the IP address and the realization information (step B5 in FIG. 5), the realization information receiving cooperation means 307 realizes all the realization information represented in FIG. The information is stored in the information storage means 305 (step B6 in FIG. 5).

As described above, the network system according to the present embodiment has the following effects.
The first effect is that a virtual network can be realized based on a request without realizing a virtual network interface in advance. As a result, the virtual network interface can be used from the application without setting in advance by the user, and setting effort and setting errors can be reduced. The reason is that the virtual network interface is automatically created based on the information in the above-described embodiment by preparing in advance information embodying the virtual network interface.

  The second effect is to deliver the virtual interface realization information on the server to the client. As a result, even if the virtual network settings are changed, only the realization information on the server may be corrected, and the cost of user operation management and the risk of setting errors can be reduced. The reason is that in the present embodiment, processing for distributing the realization information on the server from the server to the client is performed.

  The third effect is that a virtual network can be created immediately. As a result, the virtual network interface can be used immediately after the application is started, and the waiting time until the user can use it can be reduced. This is because in the present embodiment, the server and the client hold the realization information in advance.

DESCRIPTION OF SYMBOLS 101 Application 102 Virtual network interface 103 Virtual network interface implementation means 104 Physical network interface 105 Realization information storage means 106 IP address issuing means 107 Realization information transmission cooperation means 301 Application 302 Virtual network interface 303 Virtual network interface implementation means 304 Physical Network interface 305 Realization information storage means 306 Delivery IP address reception means 307 Realization information reception cooperation means 1000 Server 2000 Network 3000 Client

Claims (8)

Realization information storage means for storing realization information in which address information specified by an application and virtual network address information are associated with each other;
A network system comprising: virtual network interface realization means for reading out and setting corresponding virtual network information from the realization information storage means on the basis of address information included in the request in response to an application request. The network system includes a server and a client,
The network system according to claim 1, wherein the realization information storage unit and the virtual network interface realization unit are provided in the server or the client, or both the server or the client. The server has realization information transmitting means for transmitting the realization information stored in the realization information storage means to a client;
2. The network system according to claim 1, wherein the client has realization information receiving means for receiving realization information transmitted from the server and storing the realization information in the realization information storage means of the client. Realization information storage means for storing realization information in which address information specified by an application and virtual network address information are associated with each other;
A server comprising virtual network interface realization means for reading and setting corresponding virtual network information from the realization information storage means based on address information included in the request in response to an application request.   The server further comprises realization information transmitting means for transmitting the realization information stored in the realization information storage means to a client. Receiving a network usage request from the application;
Identifying virtual network information associated with the address information from preset implementation information based on the address information included in the use request;
A method of automatically creating and setting a virtual network interface, comprising the step of setting specified virtual network information. A server transmitting preset realization information to a client;
7. The method for automatically creating and setting a virtual network interface according to claim 6, wherein the client comprises a step of setting virtual network information based on the received realization information. Receiving a network usage request from the application;
Identifying virtual network information associated with the address information from preset realization information based on the address information included in the use request;
A program for automatically creating and setting a virtual network interface that causes a computer to execute a step of setting specified virtual network information.

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