JP6300366B2 - Virtual network setting information management apparatus and virtual network setting information management program - Google Patents

Description

  The present invention relates to a virtual network setting information management apparatus and a virtual network setting information management program for managing setting information of a network virtualization environment.

  Recently, server virtualization technology and network virtualization technology are spreading in various network systems. This virtualization technology enables maintenance of system and network (NW) maintenance, such as a part of server and network construction work that has been physically performed in the past by a simple procedure by logical software operation. There is an advantage that leads to more efficient operation work.

  For example, in addition to the conventionally used technology such as VLAN (Virtual Local Area Network), a network virtualization method using “NVGRE” or “VXLAN” that implements a virtual network using a virtual switch and tunnel communication ( Various network virtualization methods such as Non-Patent Documents 1 and 2 have been proposed by vendors of network devices, technical specification formulation organizations, and the like.

“NVGRE: Network Virtualization using Generic Routing Encapsulation,” [online], IETF, February 2014, [searched July 10, 2014], Internet <URL: http://tools.ietf.org/html/draft-sridharan -virtualization-nvgre-04> “VXLAN: A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks,” [online], IETF, April 10, 2014, [searched July 10, 2014], Internet <URL: http: //tools.ietf .org / html / draft-mahalingam-dutt-dcops-vxlan-09>

  In this way, the specifications of network virtualization technology have become unstable, and network devices (switches, routers, etc.) that support that network virtualization method have been independently developed by each device vendor, and are used only by that vendor. The network device can be controlled and operated only by using a command group unique to the vendor through such an interface. In other words, the network design flexibility and flexibility are reduced for the user side (company, etc.) who uses the network. In addition, because each vendor has different specifications, network management becomes complicated, and even when changing network device settings and settings, etc., the user can acquire the vendor's own specifications and perform work. Since it is necessary to request work from the vendor, the development / maintenance cost (expense, time required for setting / changing, etc.) may increase.

  The present invention has been made in view of such a background, and the present invention simplifies the management of network setting information when performing network setting / operation using network virtualization technology, and increases the operation cost. It is an object of the present invention to provide a virtual network setting information management device and a virtual network setting information management program that can be suppressed.

In order to solve the above-described problem, the invention described in claim 1 is a virtual network setting information management device that manages network setting information set in a network device in order to perform network design using network virtualization technology. A network to be designed is divided into layer networks, and is set in a network device associated with the divided layer network, and an upper layer NW information setting unit for acquiring upper layer network setting information, and the divided network A lower layer NW information setting unit for acquiring network setting information of a lower layer connecting the layer networks, and NW virtualization for acquiring setting information of a network virtualization environment in which the divided layer network is overlaid on the lower layer network and the information setting unit, before Network device associating the divided layer network, virtualization method of the network device-configurable network, and, e Bei and a storage unit for storing switch information including setting information of the port to which the network device is provided, the upper layer An NW information setting unit refers to the switch information, and displays a higher layer NW information setting screen for selecting a network device associated with the divided layer network and a port associated with the divided layer network. To obtain network setting information of the upper layer, and the lower layer NW information setting unit refers to the switch information and links the network device facing the network device associated with the divided layer network. Attached port By outputting a lower layer NW information setting screen for receiving setting information input to the display means, the lower layer network setting information is obtained, and the NW virtualization information setting unit refers to the switch information. , Input the setting information of the port for virtualization connecting the network devices associated with the divided layer network, and output the NW virtualization information setting screen for selecting the virtualization method of the network device to the display means Thus , the virtual network setting information management apparatus is characterized in that the setting information of the network virtualization environment is acquired .

By doing so, the virtual network setting information management apparatus can separately acquire upper layer network setting information, lower layer network setting information, and network virtualization environment setting information. Therefore, even if the network designer is not a specialized designer who is familiar with everything from the upper layer to the network virtualization environment and the lower layer, the network designer can set the network for the layer he is responsible for. Therefore, management of network design information can be simplified and increase in operation cost can be suppressed.
Further, the virtual network setting information management apparatus can acquire upper layer network setting information via the upper layer NW information setting screen. The virtual network setting information management device can acquire the lower layer network setting information via the lower layer NW information setting screen. Further, the virtual network setting information management apparatus can acquire the setting information of the network virtualization environment via the NW virtualization information setting screen. Therefore, the network designer of each layer can easily input only the network settings of the layer he / she is responsible for according to each setting screen.

According to a second aspect of the present invention, the virtual network setting information management device further includes a switch information registration unit that outputs the switch information to a display unit, and the switch information registration unit associates the divided layer network with the switch information registration unit. When a new network device is installed in the design target network, the new network device, a network virtualization method that can be set by the new network device, and the new network device are provided. by outputting the switching information registration screen for registering a new switch information including the port configuration information on the display unit, the virtual network configuration according to claim 1, characterized in that obtaining the new switch information An information management device was used.

  By doing in this way, the virtual network setting information management device can adopt the new virtualization technology even when, for example, a network device corresponding to the new virtualization technology is installed in the network to be designed. The switch information of the corresponding network device can be registered via the switch information registration screen.

According to a third aspect of the present invention, the virtual network setting information management device is further configured based on the upper layer network setting information, the lower layer network setting information, and the network virtualization environment setting information. The virtual network setting information management according to claim 1 or 2 , further comprising a network setting information output unit that outputs setting information of the network device associated with the divided layer network to the display unit as an NW setting screen. The device.

  By doing so, the virtual network setting information management apparatus can output the setting information of the network device to the display means as an NW setting screen. Therefore, the network designer can easily confirm the setting information of the network device of the network to be designed.

The invention described in claim 4 is a virtual network setting information management program for causing a computer to realize each function of the virtual network setting information management apparatus described in any one of claims 1 to 3 .

By doing in this way, each function of the virtual network setting information management apparatus of any one of Claims 1 thru | or 3 is realizable using a general computer.

  According to the present invention, a virtual network setting information management apparatus and virtual network setting information that simplify the management of network setting information when performing network setting / operation using a network virtualization technology and suppress an increase in operation cost. A management program can be provided.

It is a figure which shows the network design using the network virtualization technique in a comparative example. It is a figure which shows notionally the network design using the network virtualization technique in this embodiment. It is a figure which shows the example of the network setting using network virtualization. It is a figure which shows the example of a setting of a low-order network. It is a figure for demonstrating the setting information regarding a lower layer among the information set to a network apparatus. It is a figure for demonstrating the setting information regarding an upper layer among the information set to a network apparatus. It is a figure for demonstrating the setting information regarding a network virtualization environment among the information set to a network apparatus. It is a figure for demonstrating the function assignment of a network designer. It is a functional block diagram which shows the structural example of the virtual network setting information management apparatus which concerns on this embodiment. It is a figure which shows an example of the process selection screen which concerns on this embodiment. It is a figure which shows an example of the switch information registration screen which concerns on this embodiment. It is a figure for demonstrating notionally L2 connection of the high-order network which the high-order layer NW information setting part which concerns on this embodiment sets. It is a figure which shows an example of the upper layer NW information setting screen (L2) which concerns on this embodiment. It is a figure which shows an example of the lower layer NW information setting screen (L2) which concerns on this embodiment. It is a figure which shows an example of the NW virtualization information setting screen (L2) which concerns on this embodiment. It is a figure for demonstrating the NW setting screen which concerns on this embodiment. It is a figure which shows the example of the information set to a network device. It is a figure for demonstrating notionally L3 connection of the high-order network which the high-order layer NW information setting part which concerns on this embodiment sets. It is a figure which shows an example of the upper layer NW information setting screen (L3) which concerns on this embodiment. It is a figure which shows an example of the lower layer NW information setting screen (L3) which concerns on this embodiment. It is a figure which shows an example of the NW virtualization information setting screen (L3) which concerns on this embodiment. It is a figure for demonstrating the NW setting screen which concerns on this embodiment. It is a figure which shows the example of the information set to a network device. It is a figure which shows the switch information registration screen after network setting at the time of constructing | assembling a high-order network by L2. It is a figure which shows the switch information registration screen in which the new switch was registered.

Next, a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described.
First, a conventional network design method will be described as a comparative example with the present embodiment.

(Comparative network design method)
FIG. 1 shows a network design using network virtualization technology in a comparative example. FIG. 1A shows an example of a network configuration (IP over MPLS) in which the lower layer is MPLS (Multi Protocol Label Switching) and the upper layer is an IP (Internet Protocol) network. FIG. 1B shows an example of a network configuration (IP over IP (GRE)) in which the lower layer is an IP (GRE overlay) network and the upper layer is an IP network.

  Whether designing the network configuration (IP over MPLS) shown in FIG. 1A or designing the network configuration (IP over IP (GRE)) shown in FIG. Conventionally, network information relating to the upper layer, network information relating to the lower layer, and information relating to a network virtualization environment for connecting the upper layer and the lower layer (hereinafter, sometimes referred to as “network virtualization information”). After understanding and understanding everything, it was necessary to design a network in consideration of everything from the upper layer to the network virtualization environment and the lower layer for each network virtualization technology.

  That is, when designing the network configuration (IP over MPLS) shown in FIG. 1 (a), it is described as a professional designer who is familiar with IP over MPLS (“IP / MPLS professional designer” in FIG. 1 (a)). )) Performs network design using a network virtualization apparatus (MPLS switch) for realizing network virtualization. When designing the network configuration (IP over IP (GRE)) shown in FIG. 1B, a specialized designer who is familiar with IP over IP (GRE) (see FIG. 1B “IP / IP ( GRE) “specialized designer”)) designs a network using a network virtualization apparatus (GRE-compatible router) that realizes network virtualization. In other words, the network designer must be able to design the network without understanding and understanding the setting information and the original specifications of the network equipment from the upper layer to be designed to the network virtualization environment and the lower layer. It was.

  At this time, information constituting the network (network setting information) is also managed individually for each network virtualization technology that realizes the network virtualization. For example, in FIG. 1A, as network virtualization technology, IP over MPLS network setting information (indicated as “IP / MPLS NW setting information 91” in FIG. 1A). Managed. Further, in FIG. 1B, it is managed as network setting information for IP over IP (GRE) (denoted as “IP / IP (GRE) NW setting information 92” in FIG. 1B). .

  Thus, in the network design method of the comparative example, it is necessary for the network designer to design the network in consideration of everything from the upper layer to the network virtualization environment and the lower layer. Therefore, for example, when adopting a newly developed network virtualization method, whether specifications (commands) corresponding to each network virtualization apparatus are performed after a network designer such as a company is familiar, It was necessary to perform work by requesting the vendor of the network virtualization apparatus.

  Also, network setting information is managed individually for each network virtualization technology, so if you want to change the settings to a new network virtualization method, you can effectively use the existing setting information as common data Network design changes could not be made flexibly. That is, as shown in FIGS. 1A and 1B, even if the upper network is the same IP network, the network setting information is individually managed for each network virtualization technology. If the lower layer is changed from the MPLS network to another network (for example, IP network) in consideration of the Service Level Agreement, etc., it is necessary to redesign the network, which is flexible. The network could not be selected. That is, the network design method of the comparative example manages the network setting information vertically for each network virtualization technology.

(Outline of this embodiment)
Next, an outline of the network design method in the present embodiment will be described.

First, the concept of the network design method according to this embodiment will be described. FIG. 2 conceptually shows a network design using the network virtualization technology in this embodiment.
In the network design method of the comparative example shown in FIG. 1, the network designer performs network design based on individual network virtualization technology after considering everything from the upper layer to the network virtualization environment and the lower layer. It was. On the other hand, in the network design method according to the present embodiment, the work of the network designer is divided for each upper layer network, network virtualization environment, and lower layer network according to the setting contents. Therefore, the present embodiment is characterized in that the network virtualization environment is considered as a layer positioned between the upper layer and the lower layer. Thereby, the person in charge of designing the upper layer network (upper layer NW designer) sets information on the upper layer network (hereinafter referred to as “upper layer NW information”). The designer of the lower layer network (lower layer NW designer) sets information related to the lower layer network (hereinafter referred to as “lower layer NW information”). Then, the person in charge of designing the network virtualization environment (NW virtualization designer) sets information on the network virtualization environment (NW virtualization information). That is, in the network design method according to the present embodiment, network setting information is managed horizontally for each layer. By designing each layer in this way, the work of the network designer is shared and the knowledge required for each network designer (upper layer NW designer, lower layer NW designer, NW virtualization designer) is reduced. can do. Also, by sharing the setting information set by each network designer regardless of the network virtualization technology, it is possible to easily change the network virtualization technology. That is, it is possible to flexibly change the lower level network and the network virtualization technology in consideration of cost, SLA, and the like.

  FIG. 2 shows that an IP network is set in the upper layer and an MPLS network and an IP (GRE) network are set in the lower layer. Further, it is shown that an MPLS switch and a GRE-compatible router are set as a network virtualization apparatus for realizing a network virtualization environment. The setting information of each layer is shared by the upper layer, the lower layer, and the network virtualization environment. That is, in the upper layer, an IP network is set, in the lower layer, an MPLS network and an IP (GRE) network are set (or settable), and in a network virtualization environment, MPLS is set. It is set as common data that a network virtualization technology based on a switch and a network virtualization technology based on a GRE-compatible router are set (or can be set).

  As in the network design method according to the present embodiment, by handling the setting contents of each layer as common data, available lower layers and network virtualization environments are shown, and it is easy to change the network virtualization technology. Become. Further, when a new network virtualization technology is developed in the future, even when a network virtualization apparatus corresponding to the technology is introduced, it is possible to flexibly cope with it by taking it as common data information.

<Common data for setting information of each layer>
Next, the reason why the network setting information can be handled as common data in each of the upper layer, the lower layer, and the network virtualization environment described above will be described with reference to the following examples. That is, even if the network virtualization environments are different, the setting information of each layer is common.

FIG. 3 shows an example (set example) in which an upper network and a lower network (here, IP network) are connected using different network virtualization methods. FIG. 3A shows an example of a tunnel connection (GRE bridge) based on GRE, and FIG. 3B shows an example of a tunnel connection (OpenVPN bridge) based on OpenVPN.
In this embodiment, a local network such as an in-house private network is regarded as a huge virtual switch (or virtual router) as an upper network. Then, for example, the private network is divided into local networks separated from the bases (Tokyo and Osaka), and the network devices (virtual GRE bridge in FIG. 3A) are connected to the divided local networks (layer networks). In FIG. 3B, the OpenVPN bridge) is associated with each other. Further, network virtualization is realized by allocating network devices corresponding to virtualization of the upper network to the network environment (lower network) set in the lower layer, specifically, by installing a tunnel connection. In the present embodiment, the lower level network may be a physical network or a virtual network.

  Specifically, in the example shown in FIGS. 3A and 3B, information to be input by the network designer of each layer in the present embodiment will be described with reference to FIGS. Here, as shown in FIG. 4, an IP network (192.168.0.0/27) is set as a lower network between the left and right network devices (bridges), and the lower layer NW designer can connect to one layer network. An example in which “192.168.0.1” is assigned as the IP address and “192.168.0.2” is assigned as the IP address to the other layer network will be described. In addition, “Vyatta” (registered trademark) will be described as an example of software for setting setting information such as network virtualization in each network device in the present embodiment including FIGS. As for “Vyatta”, refer to the reference (Kuniaki Kondo, 3 others, “Introduction to Open Source Software Router Vyatta”, Technical Review, 2011).

  FIG. 5 is a diagram for explaining setting information related to a lower layer among pieces of information set in the network device. FIG. 5A shows an example of setting information in the case of the GRE bridge (setting information of the left and right network devices), and FIG. 5B shows setting information in the case of the OpenVPN bridge (each of the left and right network devices). An example of setting information) is shown.

As indicated by reference numeral 1010 in FIG. 5A, the information set by the network designer (lower layer NW designer) in the GRE bridge is “eth0” that is information on the end point of the bridge and the IP address ( "192.168.0.1/27" (left side), "192.168.0.2/27" (right side)).
On the other hand, as indicated by reference numeral 2010 in FIG. 5B, the information for the network designer (lower layer NW designer) to set in the OpenVPN bridge is “eth0” that is information on the end point of the bridge and each layer. The IP address of the network (“192.168.0.1/27 (left side)”, “192.168.0.2/27” (right side)).
That is, even if the network virtualization method is different, the setting information regarding the lower layer is the same.

  FIG. 6 is a diagram for explaining the setting information related to the upper layer among the information set in the network device. FIG. 6A shows an example of setting information in the case of the GRE bridge (setting information of the left and right network devices), and FIG. 6B shows setting information in the case of the OpenVPN bridge (each of the left and right network devices). An example of setting information) is shown.

As indicated by reference numeral 1020 in FIG. 6A, information set by the network designer (upper layer NW designer) in the GRE bridge sets “br0” as the bridge identification information, and sets the information to the bridge group “br0”. The end point “eth1” of Ethernet (registered trademark) is set.
On the other hand, as indicated by reference numeral 2020 in FIG. 6B, the information set by the network designer (upper layer NW designer) in the OpenVPN bridge also sets “br0” as the bridge identification information, and sets the bridge group “br0”. Is to set the Ethernet endpoint "eth1".
That is, even if the network virtualization methods are different, the setting information regarding the upper layer is the same.

  FIG. 7 is a diagram for explaining setting information regarding the network virtualization environment among the information set in the network device. FIG. 7A shows an example of setting information in the case of the GRE bridge (setting information of the left and right network devices), and FIG. 7B shows setting information in the case of the OpenVPN bridge (each of the left and right network devices). An example of setting information) is shown.

  As indicated by reference numeral 1030 in FIG. 7A, information set by the network designer (NW virtualization designer) in the GRE bridge is information related to a tunnel for ground connection. Specifically, the virtualization method is “gre-bridge” (GRE bridge), use the tunnel identified by “tun0”, and the end points associated with local and remote “tun0” for each bridge. Information (for example, an IP address) is set. Further, as indicated by reference numerals 1031 and 1032 in FIG. 7A, information on “tun0” to be set in the bridge group “br0” is also set by the network designer (NW virtualization designer).

  On the other hand, as indicated by reference numeral 2030 in FIG. 7B, information set by the network designer (NW virtualization designer) in the OpenVPN bridge is also information related to the tunnel to be connected to the ground. Specifically, the virtualization method is “openvpn” (OpenVPN), the tunnel identified by “vtun0” is used, and the end point information associated with the local and remote “vtun0” for each bridge (IP Address, etc.) are set. In OpenVPN, the network designer (NW virtualization designer) further sets an encryption key for encryption. Further, as indicated by reference numerals 2031 and 2032 in FIG. 7B, information on “openvpn vtun0” to be set in the bridge group “br0” is also set by the network designer (NW virtualization designer).

  In this way, even if the network virtualization methods are different, the setting information related to the network virtualization environment may be necessary information added in each network virtualization method. Is.

  As described above, the network setting information regarding each of the upper layer, the lower layer, and the network virtualization environment is basically common information regardless of the network virtualization method. Based on this, in the virtual network setting information management device 1 (see FIG. 9) according to the present embodiment, the network designer inputs the network setting information input by the network designer from the upper layer as in the comparative example. Even if it is not an expert designer who knows everything about the network virtualization environment and the lower layers, setting information can be input and changed corresponding to each layer of the upper layer, the network virtualization environment, and the lower layer. By doing in this way, as shown in FIG. 8, about an upper layer, an upper layer NW designer sets upper layer NW information. For the lower layer, the lower layer NW designer sets the lower layer NW information. For the NW virtualization environment, the NW virtualization designer sets the NW virtualization information. As a result, each network designer can set / change the network of the layer he / she is responsible for, independently of the setting information of the other layers. In addition, by using network setting information set for each layer as common data, even devices with different implementations (that is, multi-vendors) can be easily used by converting the common data into the specifications of each device. be able to. Therefore, management of network setting information can be simplified and increase in operation cost can be suppressed.

(Configuration of this embodiment)
Next, the virtual network setting information management apparatus 1 according to the present embodiment will be described.
FIG. 9 is a functional block diagram illustrating a configuration example of the virtual network setting information management device 1 according to the present embodiment.
As shown in FIG. 8, the virtual network setting information management apparatus 1 according to the present embodiment receives network setting information of each layer from each of the upper layer NW designer, the lower layer NW designer, and the NW virtualization designer. Accept. The virtual network setting information management apparatus 1 then collectively outputs information necessary for configuring the network based on information set by each designer.

  As illustrated in FIG. 9, the virtual network setting information management device 1 is realized by a computer including a control unit 10, an input / output unit 20, and a storage unit 30.

  The input / output unit 20 includes an input / output interface that inputs and outputs information between the screen display device 2 (display unit) such as a monitor and the input device 3 such as a keyboard and a touch panel. The input / output unit 20 includes a communication interface that transmits and receives information to and from a device (network device) that configures a network to be set, a device that manages the entire network (network management device), and the like. May be.

  The control unit 10 controls the entire virtual network setting information management apparatus 1, and includes a switch information registration unit 11, a network information setting unit 12 (NW information setting unit), and a network setting information output unit 13 (NW setting information output unit). ) And the screen display control unit 14. For example, the control unit 10 loads a program (virtual network setting information management program) stored in the storage unit 30 into a RAM (Random Access Memory) (not shown) by a CPU (Central Processing Unit) (not shown). It is realized by executing.

The switch information registration unit 11 is information (hereinafter referred to as “switch information”) related to network devices (switches, routers, etc.) of a user (company, etc.) that is a prerequisite for designing a network using network virtualization technology. The “switch information registration screen” (see FIG. 11 to be described later) is registered on the screen display device 2 via the screen display control unit 14. The switch information registration unit 11 receives switch information input by a network designer such as a network designer or a company via the switch information registration screen, and stores it in the switch information DB 100 in the storage unit 30. Note that the switch information registration unit 11 may acquire the switch information as data such as a file from the network management device via the input / output unit 20 and store it in the storage unit 30.
In addition, the switch information registration unit 11 causes the screen display device 2 to display the switch information stored in the switch information DB 100 in the storage unit 30 as a switch information registration screen. Then, the switch information registration unit 11 receives a request for changing, adding, or deleting the switch information displayed on the screen via the screen display control unit 14 and updates the switch information DB 100 in the storage unit 30.

The network information setting unit 12 (NW information setting unit) acquires network setting information of each layer via the input / output unit 20 and the screen display control unit 14 and stores the network setting information DB 200 in the storage unit 30. .
The network information setting unit 12 includes an upper layer NW information setting unit 121, an NW virtualization information setting unit 122, and a lower layer NW information setting unit 123.

  The upper layer NW information setting unit 121 sets the upper layer NW information setting screen (hereinafter referred to as “upper layer NW information setting screen” via the screen display control unit 14; see FIGS. 13 and 19 to be described later). Is displayed on the screen display device 2. Then, the upper layer NW information setting unit 121 acquires network setting information about the upper layer input by the network designer (upper layer NW designer) via the upper layer NW information setting screen, and stores the information in the storage unit 30. Are stored in the network setting information DB 200 (NW setting information DB).

  The NW virtualization information setting unit 122 via the screen display control unit 14 sets a network virtualization information setting screen (hereinafter referred to as “NW virtualization information setting screen”; see FIGS. 15 and 21 to be described later). Is displayed on the screen display device 2. Then, the NW virtualization information setting unit 122 acquires network setting information about the NW virtualization environment input by the network designer (NW virtualization designer) via the NW virtualization information setting screen, and the storage unit 30 is stored in the network setting information DB 200.

  The lower layer NW information setting unit 123 via the screen display control unit 14 sets a lower layer NW information (hereinafter referred to as “lower layer NW information setting screen”; see FIGS. 14 and 20 to be described later). Is displayed on the screen display device 2. Then, the lower layer NW information setting unit 123 acquires network setting information about the lower layer input by the network designer (lower layer NW designer) via the lower layer NW information setting screen, and stores the information in the storage unit 30. Is stored in the network setting information DB 200.

  Note that the network information setting unit 12 (the upper layer NW information setting unit 121, the NW virtualization information setting unit 122, and the lower layer NW information setting unit 123), when storing the network setting information in the network setting information DB 200, When the setting information is stored and the setting contents of the switch information are changed, the switch information in the switch information DB 100 is changed in synchronization with the newly stored network setting information.

Upon receiving the network setting information acquisition request via the input / output unit 20, the network setting information output unit 13 refers to the network setting information DB 200 in the storage unit 30 and is set by the network information setting unit 12 in each layer. The network information is integrated, and a “NW setting screen” (see FIG. 16 and FIG. 22 described later) is generated via the screen display control unit 14 and output to the screen display device 2.
The network setting information output unit 13 refers to the network setting information DB 200 in the storage unit 30 and outputs the data of the network setting information as a file or the like to the network management device or the like via the input / output unit 20. May be.

  The screen display control unit 14 includes a switch information registration screen (FIG. 11), an upper layer NW information setting screen (FIGS. 13 and 19), an NW virtualization information setting screen (FIGS. 15 and 21), and a lower layer NW information setting screen. (FIGS. 14 and 20) and the NW setting screen (FIGS. 16 and 22) are displayed on the screen display device 2. Further, the screen display control unit 14 displays a screen for selecting each of the above functions (“processing selection screen”, see FIG. 10 described later) as an initial screen at the start of processing by the network designer. Switch information registration unit 11, network information setting unit 12 (upper layer NW information setting unit 121, NW virtualization information setting unit 122, lower layer NW information setting unit corresponding to the content (selection button) selected by the designer or the like 123), one of the network setting information output unit 13 is activated, and a corresponding screen is displayed on the screen display device 2.

  The storage unit 30 includes storage means such as a hard disk, a flash memory, and a RAM. The switch information DB 100 in which switch information is stored and the network setting information DB 200 (NW setting information DB) in which network setting information is stored are described above. Stored.

<Example of screen display>
Next, a display example output by the virtual network setting information management apparatus 1 according to the present embodiment to the screen display apparatus 2 and network setting information set by the network designer will be described.

  The screen display control unit 14 of the virtual network setting information management device 1 according to the present embodiment displays a process selection screen 1000 as shown in FIG. This process selection screen 1000 includes a “switch information registration” button (reference numeral 1001), an “upper layer NW information setting” button (reference numeral 1002), an “NW virtualization information setting” button (reference numeral 1003), and “lower layer NW information”. A “set” button (reference numeral 1004) and an “output NW setting result information” button (reference numeral 1005) are provided. Then, the screen display control unit 14 activates the switch information registration unit 11 by acquiring the information selected by the network designer using the “switch information registration” button via the input / output unit 20. Similarly, the screen display control unit 14 acquires information in which the “upper layer NW information setting” button is selected, and activates the upper layer NW information setting unit 121. The screen display control unit 14 acquires information in which the “NW virtualization information setting” button is selected, and activates the NW virtualization information setting unit 122. The screen display control unit 14 acquires information in which the “lower layer NW information setting” button is selected, and activates the lower layer NW information setting unit 123. The screen display control unit 14 acquires information in which the “NW setting result information output” button is selected, and activates the network setting information output unit 13. The “NW setting result information output” button may be displayed only when all of the upper layer NW information, the lower layer NW information, and the NW virtualization information are input.

  Next, the switch information registration unit 11, the upper layer NW information setting unit 121, the NW virtualization information setting unit 122, the lower layer NW information setting unit 123, and the network setting information output unit 13 output screens to the screen display device 2. explain. Each of these units displays a screen shown below based on an activation instruction from the screen display control unit 14 and accepts an input from the network designer.

≪Register switch information≫
FIG. 11 is a diagram showing an example of the switch information registration screen 110 according to the present embodiment. The switch information registration screen 110 is displayed by the switch information registration unit 11 of the virtual network setting information management device 1 and is stored in the switch information DB 100 in the storage unit 30 as switch information for each user (company, etc.).

The switch information registration screen 110 displays details of information (switch information) related to switches and the like registered by the user via the switch information registration unit 11.
Specifically, as shown in FIG. 11, switch information includes “switch name”, “corresponding NW virtualization function”, “switch port information”, “usage status” of the port, and the like. It is displayed on the information registration screen 110. The “switch registration” button (reference numeral 111) and the “switch deletion” button (reference numeral 112) will be described later.

Here, “switch name” stores switch identification information set by the user. For example, identification information of two switches “Switch Tokyo # 1” and “Switch Osaka # 1” is registered.
In the “corresponding NW virtualization function”, a corresponding virtualization method is registered as a function of the switch. Here, for example, the overlay pattern supported by the switch “Switch Tokyo # 1” is “L2 over L3 (described as“ L2 / L3 ”in FIG. 11)” and “L3 over L3 (“ L3 in FIG. 11 ”). / L3 ”)), and“ GRE-BREDGE ”and“ NVGRE ”can be set as the overlay method (virtualization method) of“ L2 over L3 ”and“ GRE as the overlay method of “L3 over L3”. "OpenVPN" is settable.

In the “switch port information”, whether the switch is a port reserved for tunnel connection for network virtualization (indicated as “reservation” in FIG. 11), it can be freely set by the network designer Whether it is a port (indicated as “open” in FIG. 11) is registered. Here, as shown in FIG. 11, it is assumed that “eth0” is reserved for tunnel connection.
In “Usage Status”, information indicating whether or not the port is in use is registered. For example, since the port “eth0” is already reserved for tunnel connection, “used” is registered. The other ports (“eth1” to “eth5”) are registered “unused” because nothing is set yet.

  The switch information registration screen 110 is used to confirm the current network environment of the user when the network designer inputs network setting information. In FIG. 11, each network designer performs settings. The switch information in the previous initial state is shown.

≪Registration of network setting information≫
Next, the display screen and setting information displayed on the screen display device 2 by the network information setting unit 12 (upper layer NW information setting unit 121, NW virtualization information setting unit 122, and lower layer NW information setting unit 123) will be described. .
Here, the case where the network that the user wants to use is L2 (layer 2) and L3 (layer 3) will be described separately.

[Layer 2]
First, the display screen and setting information by the network information setting unit 12 when the network that the user wants to use is L2 (layer 2) will be described.

<Upper layer NW information setting screen (L2)>
FIG. 12 is a diagram for conceptually explaining the L2 connection of the upper network set by the upper layer NW information setting unit 121. Here, the upper layer NW designer will explain the R & D network as an example of connecting Tokyo and Osaka where the research base is located with a bridge. The contents described in FIG. 12 are input to the upper layer NW information setting screen (FIG. 13) by the network designer (upper layer NW designer) as the upper layer network setting information.

  As shown in FIG. 12A, first, the upper layer NW designer divides the research and development network into layer networks of Tokyo and Osaka, which are research bases. Next, as shown in FIG. 12B, it is set that the divided layer network between Tokyo and Osaka is connected by a bridge (“br0”). Next, as shown in FIG. 12C, “eth1” selected from the ports of “Switch Tokyo # 1” that is a switch installed in Tokyo and “Switch Osaka” that is a switch installed in Osaka. Connect “eth1” selected from the port of “# 1” to the bridge (“br0”). Even if the upper layer NW information setting unit 121 of the virtual network setting information management device 1 sequentially displays setting screens as shown in FIG. 12 and directly inputs the setting information on the respective display screens, the setting is performed. Alternatively, the setting may be performed using an upper layer NW information setting screen 210 (210A) in a table format as shown in FIG.

FIG. 13 is a diagram illustrating an example of the upper layer NW information setting screen 210 that the upper layer NW information setting unit 121 displays on the screen display device 2 via the screen display control unit 14 and the input / output unit 20. FIG. 13 shows an upper layer NW information setting screen 210 (210A) when the upper network is L2 connected.
In the upper layer NW information setting screen 210 (210A), “L2 connection name”, “L2 connection identification name”, “switch name”, “switch port information”, and “usage status” are set as display items. Yes.

In the “L2 connection name”, identification information (identification name) of the L2 connection is set by the upper layer NW designer. Here, “for research and development” is input as the L2 connection name.
Further, identification information such as a bridge or a VLAN is set in the “L2 connection identification name”. Here, “br0”, which is the identification name of the bridge to be connected, is set.

  Next, the switch displayed in the switch name column is selected by the upper layer NW designer. Here, “Switch Tokyo # 1” and “Switch Osaka # 1” are selected, and the upper layer NW information setting unit 121 acquires the selection information. As the switch name, the switch name set in the switch information DB 100 of the virtual network setting information management apparatus 1 is displayed. As shown in FIG. 11, since two switches of “Switch Tokyo # 1” and “Switch Osaka # 1” are set, these two switches are displayed and selected by the upper layer NW designer. If another switch is set, a switch to be connected by the higher layer NW designer is selected from the plurality of switches.

Subsequently, the upper layer NW designer selects port information of the switches (here, “Switch Tokyo # 1” and “Switch Osaka # 1”), and the upper layer NW information setting unit 121 acquires the selection information. . Here, as shown in “switch port information” in FIG. 13, both indicate that the port “eth1” is selected as the port associated with the divided layer network. When the port information of this switch is selected, the display item of “usage status” is changed from “unused” to “in use”.
Note that the “switch port information” on the upper layer NW information setting screen 210 does not include information on the port “eth0” reserved for tunnel connection, which is not directly related to the network design of the upper layer NW designer. Is not displayed.

<Lower layer NW information setting screen (L2)>
FIG. 14 is a diagram showing a lower layer NW information setting screen 230 (230A) that the lower layer NW information setting unit 123 causes the screen display device 2 to display via the screen display control unit 14 and the input / output unit 20.
In the lower layer NW information setting screen 230 (230A), "switch name", "switch port information", and "IP address / netmask" are set as display items.

  First, a switch to be set is selected from the switches displayed as “switch name” by the lower layer NW setting person. As the switch name, the switch name set in the switch information DB 100 of the virtual network setting information management apparatus 1 is displayed. Here, as shown in FIG. 11, it is assumed that two switches “Switch Tokyo # 1” and “Switch Osaka # 1” are set.

  Subsequently, the port information of the selected switch is further selected by the lower layer NW designer. Here, the port (eth0) that is set in advance as the opposite port of the other switch (“SW (switch) opposite port”, for example, for tunnel connection) (port linked to the opposite other switch) is selected, The IP address and netmask associated with the selected port are input to the item “IP address / netmask”. Specifically, “192.168.0.1/24” is registered in the port “eth0” of “Switch Tokyo # 1” by the lower layer NW designer, and “192.168.0.2” is registered in the port “eth0” of “Switch Osaka # 1”. / 24 "is registered by the lower layer NW designer. At this time, the lower layer NW designer does not need to set the port that is not the SW facing port, so the lower layer NW information setting screen 230 does not display or displays the port that is not the SW facing port. Even if it does not input. In FIG. 14, dots indicate that information cannot be input.

<NW virtualization information setting screen (L2)>
FIG. 15 is a diagram illustrating an NW virtualization information setting screen 220 that the NW virtualization information setting unit 122 displays on the screen display device 2 via the screen display control unit 14 and the input / output unit 20. FIG. 15 shows the NW virtualization information setting screen 220 (220A) when the upper network is L2 connected.
On the NW virtualization information setting screen 220 (220A), “L2 connection name”, “L2 connection identification name”, “switch name”, “switch port information”, “tunnel port”, “use” are displayed items. "Possible overlay method information" is set. Among these, “L2 connection name” (“for research and development”) and “L2 connection identification name” (“br0”) display information set by the upper layer NW designer. In “switch name”, the switch name set in the switch information DB 100 of the virtual network setting information management apparatus 1 is displayed.

Next, in the “switch port information”, an opposite port for connecting the switches is displayed. Here, “eth0” is displayed as the SW opposing port in “Switch Tokyo # 1”. In addition, “eth0” is displayed as the SW opposing port in “Switch Osaka # 1”.
Also, “tun0” is set as “tunnel port” for virtualization to “Switch Tokyo # 1” and “Switch Osaka # 1” by the NW virtualization designer. Thereby, the bridge “br0” and the tunnel port “tun0” are associated with each other in the relationship with the upper layer, and “eth0” and the tunnel port “tun0” are associated with each other in the relationship with the lower layer.

  Subsequently, “available overlay method information” is set by the NW virtualization designer. Here, “L2 over L3” (L2 / L3) is set as the overlay pattern, and “GRE-BREDGE” is set as the overlay method.

  Thus, the upper layer NW information setting screen 210 (210A) displayed by the upper layer NW information setting unit 121, the lower layer NW information setting screen 230 (230A) displayed by the lower layer NW information setting unit 123, and the NW virtualization information In the NW virtualization information setting screen 220 (220A) displayed by the setting unit 122, the result of the network designer of each layer setting the network is stored in the network setting information DB 200 of the storage unit 30 of the virtual network setting information management device 1. Stored.

<NW setting screen (L2)>
Next, the NW setting screen 130 displayed by the network setting information output unit 13 of the virtual network setting information management device 1 will be described.
The network setting information stored in the network setting information DB 200 of the virtual network setting information management apparatus 1 is selected by selecting the “NW setting result information output” button (reference numeral 1005) on the process selection screen 1000 shown in FIG. The NW setting screen 130 can be displayed.

FIG. 16 is a diagram for explaining the NW setting screen 130 that the network setting information output unit 13 displays on the screen display device 2 via the screen display control unit 14 and the input / output unit 20. FIG. 16A shows the NW setting screen 130 (130A), and FIG. 16B shows a part of the information on the NW setting screen 130 (130A) in a table format. As the NW setting screen 130 (130A), information on both of FIGS. 16A and 16B is displayed.
In this NW setting screen 130, the network setting information output unit 13 stores the network information setting unit 12 (upper layer NW information setting unit 121, lower layer NW information setting unit 123) stored in the network setting information DB 200 in the storage unit 30. , The information set by the NW virtualization information setting unit 122) is integrated and generated.
The network designer can easily set and change the program by referring to the NW setting information shown in FIG. 16 when setting each switch.

FIGS. 17A and 17B show programs (examples created using “Vyatta”) for setting up the network in “Switch Tokyo # 1” and “Switch Osaka # 1”. The network designer can easily obtain information necessary for the program shown in FIG. 17 (setting information indicated by an underline) by referring to the network setting information shown in FIG. 16 or acquiring the information in a file format or the like. You can get and configure network settings for each switch.
The network setting information output unit 13 corresponds to the set network virtualization method (overlay method), the specification of the program used for setting the network, etc. (device implementation), and the network stored in the network setting information DB 200. The setting information (common data) is converted and output.

[Layer 3]
Next, a display screen and setting information by the network information setting unit 12 when the network that the user wants to use is L3 (layer 3) will be described.
Each setting screen in L3 (layer 3) may be displayed following the display screen for L2 (within the same display screen), or “upper layer NW information setting” on the process selection screen 1000 shown in FIG. ”Button (reference numeral 1002) or“ NW virtualization information setting ”button (reference numeral 1003) is selected by the network designer when a screen for further selecting“ L2 ”or“ L3 ”is selected. Only the layer setting screen may be displayed.

<Upper layer NW information setting screen (L3)>
FIG. 18 is a diagram for conceptually explaining the L3 connection of the upper network set by the upper layer NW information setting unit 121. Here, an example will be described in which an upper layer NW designer connects an office tokyo (Tokyo) and Osaka via an IP network for an in-house OA (Office Automation) network. The contents described in FIG. 18 are input to the upper layer NW information setting screen (FIG. 19) by the network designer (upper layer NW designer) as the network setting information of the upper layer.

  As shown in FIG. 18A, first, the upper layer NW designer divides the in-house OA network into the Tokyo and Osaka layer networks where the bases are located. Next, as shown in FIG. 18B, the divided layer network between Tokyo and Osaka is determined as a private IP connection. Next, as shown in FIG. 18C, “eth1” selected from the ports of “Switch Tokyo # 1” that is a switch installed in Tokyo and “Switch Osaka” that is a switch installed in Osaka. “Eth1” selected from the port “# 1” is set to be connected with the private IP. Even if the upper layer NW information setting unit 121 of the virtual network setting information management device 1 sequentially displays setting screens as shown in FIG. 18 and directly inputs the setting information on the respective display screens, the setting is performed. Alternatively, the setting may be performed using the upper layer NW information setting screen 210 (210B) in a tabular format as shown in FIG.

FIG. 19 is a diagram showing an upper layer NW information setting screen 210 that the upper layer NW information setting unit 121 displays on the screen display device 2 via the screen display control unit 14 and the input / output unit 20. FIG. 19 shows an upper layer NW information setting screen 210 (210B) when the upper network is L3 connected.
On the upper layer NW information setting screen 210 (210B), as display items, “L3 connection name”, “switch name”, “switch port information”, “IP address / netmask”, “static routing”, “ "Usage status" is set.

In the “L3 connection name”, identification information (identification name) of the L3 connection is set by the upper layer NW setter. Here, “in-house OA NW” is input as the L3 connection name.
Next, the upper layer NW designer selects a switch displayed in the “switch name” column. Here, “Switch Tokyo # 1” and “Switch Osaka # 1” are selected. The “switch name” is a switch name set in the switch information DB 100 of the virtual network setting information management apparatus 1. As shown in FIG. 11, since two switches of “Switch Tokyo # 1” and “Switch Osaka # 1” are set, these two switches are displayed and selected by the upper layer NW designer. When other switches are set, a switch to be connected by the higher layer NW designer is selected from the plurality of switches.

  Subsequently, the port information of the switches (here, “Switch Tokyo # 1” and “Switch Osaka # 1”) is selected by the upper layer NW designer. Here, both indicate that the port “eth1” is selected as the port associated with the divided layer network.

  Next, an “IP address / netmask” corresponding to the port of each switch is set. Here, “10.0.0.1/24” is set for the SW facing port of “Switch Tokyo # 1”, and “172.16.0.1/24” is set for the port “eth1” of “Switch Tokyo # 1” Show. In addition, “10.0.0.2/24” is set for the SW facing port of “Switch Osaka # 1” and “192.168.1.1/24” is set for the port “eth1” of “Switch Osaka # 1”. ing.

Next, routing information for each port is set. Here, description will be made assuming that the routing is static routing in which routing information is manually set.
The destination / netmask of the SW opposing port (“10.0.0.1/24”) of “Switch Tokyo # 1” is determined from the IP address / netmask of the port “eth1” of “Switch Osaka # 1” as the destination. .1.0 / 24 "(reference numeral 3001). In addition, the NEXT HOP of the SW opposite port ("10.0.0.1/24") of "Switch Tokyo # 1" is "10.0.1 / 2" from the IP address / netmask of the SW opposite port of "Switch Osaka # 1". 0.2 / 24 "(reference numeral 3002).

  The destination / netmask of the SW opposing port (“10.0.0.2/24”) of “Switch Osaka # 1” is the IP address / netmask of the port “eth1” of “Switch Tokyo # 1” that is the destination. .0.0 / 24 "(reference numeral 3003). In addition, the NEXT HOP of the SW opposite port (“10.0.0.2/24”) of “Switch Osaka # 1” is “10.0.2.” From the IP address / netmask of the SW opposite port of “Switch Tokyo # 1” as the destination. 0.1 / 24 "(reference numeral 3004).

  As described above, “Destination / Netmask” and “NEXT HOP” which are setting items of “Static Routing” are automatically set based on “IP Address / Netmask” set in the port information of the opposite switch. can do.

  By selecting the port information of this switch, the display item of “usage status” of each port is changed from “unused” to “in use”.

<Lower layer NW information setting screen (L3)>
FIG. 20 is a diagram showing a lower layer NW information setting screen 230 (230B) that the lower layer NW information setting unit 123 causes the screen display device 2 to display via the screen display control unit 14 and the input / output unit 20.
The lower layer NW information setting screen 230 (230B) is an example of L3 connection, but the display content is the same as the lower layer NW information setting screen 230 (230A) in L2 shown in FIG. Therefore, detailed description is omitted assuming that the same network setting information as the information shown in FIG. 14 is set.
In this way, regardless of the upper layer or the network virtualization environment, the lower layer NW designer can input information about the lower network regardless of whether the upper network is an L2 connection or an L3 connection.

<NW virtualization information setting screen (L3)>
FIG. 21 is a diagram showing an NW virtualization information setting screen 220 that the NW virtualization information setting unit 122 displays on the screen display device 2 via the screen display control unit 14 and the input / output unit 20. FIG. 21 shows the NW virtualization information setting screen 220 (220B) when the upper network is L3 connected.
The NW virtualization information setting screen 220 (220B) includes “L3 connection name”, “switch name”, “switch port information”, “tunnel port”, and “available overlay method information” as display items. Is set. Among these, the information set by the upper layer NW designer is displayed for the L3 connection name (for in-house OA). In “switch name”, the switch name set in the switch information DB 100 of the virtual network setting information management apparatus 1 is displayed.

Next, in the “switch port information”, an opposite port for connecting the switches is displayed. Here, “eth0” is displayed as the SW opposing port in “Switch Tokyo # 1”. In addition, “eth0” is displayed as the SW opposing port in “Switch Osaka # 1”.
Also, “tun0” is set to “Switch Tokyo # 1” and “Switch Osaka # 1” by the NW virtualization designer as a tunnel port for virtualization. Thus, in the relationship with the upper layer, the “in-house OA NW” of the L3 connection is associated with the tunnel port “tun0”, and in the relationship with the lower layer, “eth0” and the tunnel port “tun0” Are associated.

  Subsequently, “available overlay method information” is set by the NW virtualization designer. Here, “L3 over L3” (L3 / L3) is set as the overlay pattern, and “GRE” is set as the overlay method.

  Thus, the upper layer NW information setting screen 210 (210B) displayed by the upper layer NW information setting unit 121, the lower layer NW information setting screen 230 (230B) displayed by the lower layer NW information setting unit 123, and the NW virtualization information In the NW virtualization information setting screen 220 (220B) displayed by the setting unit 122, the result of the network designer of each layer setting the network is stored in the network setting information DB 200 of the storage unit 30 of the virtual network setting information management device 1. Stored.

<NW setting screen (L3)>
Next, the NW setting screen 130 displayed by the network setting information output unit 13 of the virtual network setting information management device 1 will be described.
FIG. 22 shows the network setting information stored in the network setting information DB 200 of the virtual network setting information management apparatus 1 by the network setting information output unit 13 via the screen display control unit 14 and the input / output unit 20. It is a figure for demonstrating NW setting screen 130 displayed on FIG. FIG. 22A shows the NW setting screen 130 (130B), and FIG. 22B shows a part of the information on the NW setting screen 130 (130B) in a table format. As the NW setting screen 130 (130B), information on both of FIGS. 22A and 22B is displayed.
The NW setting screen 130 (130B) can be displayed by selecting the “NW setting result information output” button (reference numeral 1005) on the processing selection screen 1000 shown in FIG.
The network designer can easily set and change the program with reference to the NW setting information shown in FIG. 22 when setting each switch.

  FIGS. 23A and 23B show programs (examples created using “Vyatta”) for setting up the network in “Switch Tokyo # 1” and “Switch Osaka # 1”. The network designer can easily obtain information necessary for the program shown in FIG. 23 (setting information indicated by an underline) by referring to the network setting information shown in FIG. 22 or acquiring the information in a file format or the like. You can get and configure network settings for each switch.

≪Change of network setting information≫
Next, a switch information change process performed by the switch information registration unit 11 of the virtual network setting information management apparatus 1 according to the present embodiment and a network setting change associated therewith will be described.
FIG. 24 shows the switch information registration screen 110 after performing the network setting shown in FIG. 16 when the upper network is constructed with L2. The switch information registration screen 110 includes a “switch registration” button (reference numeral 111) and a “switch deletion” button (reference numeral 112).
As shown in FIG. 24, “Switch Tokyo # 1” and “Switch Osaka # 1” are connected using the overlay method “GRE-BREDGE” in the overlay pattern “L2 over L3”.
In such a situation, the network designer registers new switch information by selecting a “switch registration” button (reference numeral 111) when setting a switch having a new network virtualization method. be able to.

FIG. 25 shows a state where “Switch Tokyo # 2” is registered as a new switch on the switch information registration screen 110. For example, the network designer uses “Switch Tokyo # 2” instead of the combination of the currently set overlay pattern “L2 over L3” and overlay method “GRE-BREDGE”, so that the overlay pattern “L2 over L3” It is possible to easily consider changing the overlay method from “GRE-BREDGE” to “VXLAN” based on the switch information registration screen 110 without changing “.”.
At that time, since the network setting information that has been set up so far can be used to design a new network, it is possible to reduce the cost of setting and operating the network design.

  In addition, the network designer selects each switch shown in the “switch name” on the switch information registration screen 110, and further selects the “switch delete” button (reference numeral 112), so that the equipment is updated or malfunctioned. A switch whose use has been canceled can be deleted from the switch information registration screen 110.

  In addition, when a function provided by an existing switch is added, for example, when a “VXLAN” virtualization function is added to “Switch Tokyo # 1,” settings are made so that the function can be additionally displayed. You can also.

  As described above, the switch information registration unit 11 of the virtual network setting information management apparatus 1 additionally registers a virtualization function that has not been registered or a network device (switch) having a different network virtualization function. Therefore, when a new network virtualization technology is developed in the future, it is possible to design a network by incorporating corresponding network devices. At that time, since the common data stored in the network setting information DB 200 can be used, the network virtualization technology can be flexibly changed.

  As described above, according to the virtual network setting information management device 1 and the virtual network setting information management program according to the present embodiment, by designing a network in each of the upper layer, the lower layer, and the network virtualization environment layer The network designer's work is shared, and the knowledge required for each network designer (upper layer NW designer, lower layer NW designer, NW virtualization designer) can be reduced. Also, by sharing the setting information set by each network designer regardless of the network virtualization technology, it is possible to easily change the network virtualization technology. Therefore, it is possible to simplify the management of network setting information when performing network setting / operation using the network virtualization technology, and to suppress an increase in operation cost.

1 Virtual network setting information management device 2 Screen display device (display means)
3 Input device 10 Control unit 11 Switch information registration unit 12 Network information setting unit (NW information setting unit)
13 Network setting information output unit (NW setting information output unit)
14 Screen display control unit 20 Input / output unit 30 Storage unit 100 Switch information DB
110 Switch Information Registration Screen 121 Upper Layer NW Information Setting Unit 122 NW Virtualization Information Setting Unit 123 Lower Layer NW Information Setting Unit 130 NW Setting Screen 200 Network Setting Information DB (NW Setting Information DB)
210 Upper layer NW information setting screen 220 NW virtualization information setting screen 230 Lower layer NW information setting screen 1000 Process selection screen

Claims (4)

A virtual network setting information management device for managing network setting information set in a network device in order to perform network design using network virtualization technology,
An upper layer NW information setting unit for acquiring upper layer network setting information, which divides a network to be designed into layer networks and sets the network devices associated with the divided layer networks;
A lower layer NW information setting unit for acquiring network setting information of a lower layer connecting the divided layer networks;
An NW virtualization information setting unit that acquires setting information of a network virtualization environment that overlays the divided layer network on the lower layer network;
The network device associating the divided layer network, virtualization method of the network device-configurable network, and, e Bei and a storage unit for storing switch information including setting information of the port to which the network device is provided,
The upper layer NW information setting unit
By referring to the switch information and outputting to the display means an upper layer NW information setting screen for selecting a network device associated with the divided layer network and a port associated with the divided layer network, Obtaining the network setting information of the upper layer,
The lower layer NW information setting unit
By referring to the switch information and outputting to the display means a lower layer NW information setting screen for accepting input of setting information of a port associated with the network device facing the network device associated with the divided layer network, Obtain network setting information of the lower layer,
The NW virtualization information setting unit
NW virtualization information for referring to the switch information to input setting information of a port for virtualization connecting network devices associated with the divided layer network and selecting the virtualization method of the network device Obtaining setting information of the network virtualization environment by outputting a setting screen to the display means;
Virtual network setting information management apparatus according to claim. The virtual network setting information management device further includes:
A switch information registration unit for outputting the switch information to a display means;
The switch information registration unit
When a new network device to be associated with the divided layer network is installed in the network to be designed,
A switch information registration screen for registering new switch information including the new network device, a network virtualization method that can be set by the new network device, and port setting information of the new network device. by outputting to the display unit, the virtual network configuration information management device according to claim 1, characterized in that obtaining the new switch information. The virtual network setting information management device further includes:
Based on the upper layer network setting information, the lower layer network setting information, and the network virtualization environment setting information, the network device setting information associated with the divided layer network is displayed as an NW setting screen. virtual network setting information management device according to claim 1 or claim 2, characterized in that it comprises a network setting information output unit configured to output to. The virtual network setting information management program for making a computer implement | achieve each function of the virtual network setting information management apparatus of any one of Claim 1 thru | or 3 .

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