JP2002026910A - Network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance flexibility and service of a network system by efficiently conducting collective management of the network independently of individual information of the network devices. SOLUTION: A database management means 21 manages a database 21a that includes mapping information M that maps a common control command Cc being a common command to control devices connected to the network collectively and an individual control command Cs being a individual command of the device. A translation means 22 translates the common control command Cc into the individual control command Cs or vice versa on the basis of the database 21a. A module control means 23 executes the individual control command Cs to control modules. A common control command generating means 11 generates the common control command Cc. A setting command means 12 generates a setting command Cm to set the mapping information M.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network system, and more particularly to a network system for performing information communication on a network.

[0002]

2. Description of the Related Art At present, a wide variety of communication network services are required, and communication networks for providing these services are becoming complicated and enormous. In recent years, with the spread of network devices such as routers and gateways, networks that have conventionally been locally closed and constructed can be connected to each other, and network integration is remarkable.

[0003] In contrast to the current state of such networks, conventionally, settings for operating network devices of various vendors are individually performed by connecting a console to each network device, which is inefficient and convenient. It was low. For this reason, in recent years, to multiple network devices,
A server that can set the operation from one device has appeared, and network management is performed using such a server.

[0004]

However, the above-mentioned conventional server simply stores individual information (specification information, mounting information, etc. for each network device) of network devices of various vendors to be managed in one place. It only has the function of collecting information. In the end, it is necessary to set individual information corresponding to each device for each network device. For this reason, one server has to grasp information of different specifications of various network devices, so that the management control load is high. And the efficiency was poor.

On the other hand, conventionally, for example, it has been common practice to construct a system by making troublesome settings and forming an alliance for network equipment of company A and network equipment of company B, for example. In this case, even if a network device having new specifications released by Company C is to be further incorporated into the system, it cannot be easily incorporated, and the usable products are limited.

As described above, in the conventional network management control, there has been a problem that the system is low in flexibility and lacks in serviceability because it relies on various individual information for network devices.

[0007] The present invention has been made in view of such a point, and efficiently performs centralized management of a network without depending on various pieces of individual information of network devices, and provides system flexibility and serviceability. It is an object of the present invention to provide an improved network system.

[0008]

According to the present invention, in order to solve the above-mentioned problem, in a network system 1 for performing information communication on a network as shown in FIG. 1, control of devices connected to the network is unified. A database management means 21 for managing a database 21a including mapping information M in which a common control command Cc as a common command to be performed and an individual control command Cs as an individual command of the apparatus;
A translation unit 22 for translating the common control command Cc into the individual control command Cs or from the individual control command Cs into the common control command Cc, and executing the individual control command Cs to control a target module. A network control unit 23, a common control command generating unit 11 for generating a common control command Cc, and a setting command generating unit 12 for generating a setting command Cm for setting the mapping information M. And a network management device 10 that collectively manages the plurality of network devices 20.
And a network system 1 comprising:
Is provided.

Here, the database management means 21 maps the common control command Cc, which is a common command for integrally controlling the devices connected to the network, and the individual control command Cs, which is an individual command of the device. Manages the database 21a including the mapping information M. The translation means 22 converts the common control command Cc to the individual control command Cs based on the database 21a.
Or from the individual control command Cs to the common control command Cc. The module control unit 23 controls the target module by executing the individual control command Cs. The common control command generation means 11 generates a common control command Cc. Setting command generating means 12
Is a setting command C for setting mapping information M
Generate m.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the principle of a network system according to the present invention. The network system 1 includes a network management device 10 and a network device 20, and performs information communication on a network.

The network device 20 corresponds to a network device such as a computer, a router, a gateway, etc., which operates by connecting to a network. The network management device 10 is a network central control device having a network central control function for remotely managing and monitoring the network device 20.

For the network device 20, the database management means 21 performs mapping information M mapping the common control command Cc and the individual control command Cs.
(For example, the common control command Cc and the individual control command C
s is associated with a table 21a).

The common control command Cc is a common command set in the present invention for uniformly controlling the network device 20 connected to the network. The individual control command Cs is an individual command based on the specifications of various vendors corresponding to each network device 20.

The translation means 22 translates (converts) the common control command Cc into the individual control command Cs or from the individual control command Cs into the common control command Cc based on the database 21a.

The module control means 23 executes the individual control command Cs to control a target module. A module is a device, application software, or the like.

The database management means 21 and the translation means 22 have an open architecture, and the hardware or software having the functions of the database management means 21 and the translation means 22 has a public configuration.

Therefore, even if network devices 20 of different vendors and models are mixed, compatibility can be maintained, and a system can be constructed without being limited to a specific vendor.

For the network management device 10, the common control command generation means 11 generates a common control command Cc. The setting command generating means 12 generates a setting command Cm for setting the mapping information M.

Next, the operation will be described. FIG. 2 is a diagram showing an operation flow of the network system 1. In addition,
Here, transmission of the setting command Cm and control of the network device 20 by the common control command Cc will be described as a schematic operation, and the detailed operation will be described later with reference to FIGS. [S1] The setting command generation unit 12 sets the setting command C based on an input control instruction from the network administrator.
m, and the network management device 10 transmits the setting command Cm to the network device 20.

[S2] The network device 20 receives the setting command Cm. Then, the database management unit 21 sets (generates) the mapping information M based on the setting command Cm. [S3] The common control command generation means 11 generates a common control command Cc based on an input control instruction from a network administrator, and the network management device 10 transmits the common control command Cc to the network device 20.

[S4] The network device 20 receives the common control command Cc. And the translation means 22
The common control command Cc is translated into the individual control command Cs with reference to the mapping information M (set in step S2) managed by the database management unit 21. [S5] The module control means 23 controls the module based on the translated individual control command Cs.

Next, a configuration example of the network system 1 will be described. FIG. 3 is a diagram illustrating a configuration example of the network system 1. The network 100 includes network devices 20a to 20d. The network devices 20a to 20d are products of different vendors of companies A to D.

The network management device 10 is connected to the network devices 20a to 20d,
The operating states of a to 20d are collectively managed and monitored. Here, the network management device 10 and the network device 2
Communication with 0a to 20d is performed by the common control command Cc. The network devices 20a to 20d operate with individual control commands Csa to Csd, respectively. Each of the network devices 20a to 20d has a database 2 for translating commands suitable for its own device.
1a.

That is, the common control command Cc is transmitted to the network device 20a by the individual control command Csa.
(Command of company A specification) or individual control command C
It has a database for translating sa into a common control command Cc.

The network device 20b also has a database for translating the common control command Cc into an individual control command Csb (B company specification command) or the individual control command Csb into a common control command Cc. . The same applies to the network devices 20c and 20d.

By adopting such a system configuration of the present invention, centralized control of the network can be independently and collectively performed without depending on the model of each network device.

Next, the configuration of the network management device 10 will be described. FIG. 4 is a diagram illustrating a configuration of the network management device 10. The network management device 10 includes a common control command processing unit 11-1, a setting command processing unit 12-
1, user interface unit 13, server side communication unit 1
4 The above-described common control command generation unit 11 is included in the common control command processing unit 11-1, and the setting command generation unit 12 is included in the setting command processing unit 12-1.

The user interface unit 13 has a GUI
A screen is provided to the user, and a control instruction to the network device 20 or a display of a command execution result is performed. That is, an instruction to generate the common control command Cc is transmitted to the common control command processing unit 11-1, and an instruction to generate the setting command Cm is transmitted to the setting command processing unit 12-1. Further, the execution results of the common control command Cc and the setting command Cm are received and displayed from the common control command processing unit 11-1 and the setting command processing unit 12-1.

The common control command processing section 11-1 generates a common control command Cc from a control instruction input from the user interface section 13. When the execution result of the common control command Cc is received by the server-side communication unit 14, the execution result is decoded, and the decoded value is transmitted to the user interface unit 13.

The setting command processing section 12-1 is provided with a user
The setting command Cm is created from the control instruction input from the interface unit 13. When the execution result of the setting command Cm (for example, result information indicating whether the setting has been correctly performed in the database 21a) is received by the server-side communication unit 14, the execution result is decoded, and the decoded value is transmitted to the user interface unit. 13 is transmitted.

The server-side communication unit 14 controls a communication interface with the network device 20, and transmits a common control command Cc and a setting command Cm to the network device 20.
Or receive the execution result.

Next, the configuration of the network device 20 will be described. FIG. 5 is a diagram showing the configuration of the network device 20. The network device 20 includes a database management unit 21, a translation unit 22, a module control unit 23, a command reception unit 24, a client-side communication unit 25, and a selector 26. Control target module 27 in the figure
Is a module to be controlled by the network device 20.

The command receiving means 24 controls the reception of the common control command Cc and the setting command Cm from other than the network management device 10. That is, by directly connecting the console to the command receiving unit 24 from outside without going through the network, the common control command Cc and the setting command Cm are received. Also, the execution results of these commands are transmitted to the connected console.

The client-side communication section 25 controls the communication interface with the network management apparatus 10, and receives the common control command Cc and the setting command Cm from the network management apparatus 10, or transmits the execution result.

The selector 26 controls selection of the common control command Cc and the setting command Cm. In addition, other components are described above, and the description is omitted. Next, a screen provided by the user interface unit 13 in the network management device 10 will be described. FIG. 6 is a diagram showing a screen display example.

On the left side of the screen with respect to the screen 110, the configuration of the network device 20 is shown. On the right side of the screen, a setup menu and a status confirmation menu of a network device to be a target (a control target) are shown. The setup menu is a menu showing items that can be set, and the status check menu is a menu showing items that are currently set.

In the figure, the topology of the network devices A to D corresponding to the router is linear, and a setup menu and a status confirmation menu of the network device B are displayed as target devices.

For the setup menu, Basic Cnfi
The guration is a setup item for assigning an IP address and the like. Filter Setup is a setup item for performing packet filtering settings. QoS Se
tup is a setup item for setting various QoS.

For the status confirmation menu, the Current Setup
Is an item indicating the setup state currently set. Packet Discard is an item indicating a discarded packet. The Routing Table is an item indicating the current routing table. The Current OS is an item indicating the OS currently used.

Next, the mapping information M stored in the database 21a will be described. FIG. 7 is a diagram illustrating an example of the mapping information M. The table T in which the mapping information M is tabulated includes items of a common control command Cc, an individual control command Cs, and execution results (1) to (3).

For the first line, the WF of the common control command Cc
Q_SET # 1 is one of the QoS-related commands. When this command is translated into the individual control command Cs, the command becomes INSTALL_WFQ # 1 of the individual control command Cs.

The execution result (1) indicates a return value when the command is executed normally, and the individual control command Cs
Is 0 and the common control command Cc is ACK. The execution result (2) indicates the return value at which the command was abnormally executed. The individual control command Cs is 1, the common control command Cc.
Becomes # 1 Parameter Error.

For the second line, the TO of the common control command Cc
KEN_BUKET_SET # 1 # 2 is one of the commands for setting the fluctuation and the allowable range of the band. When this command is translated into the individual control command Cs, it becomes a command called TOKEN_DEPTH # 1 for setting a permissible range of fluctuation and a command called TOKEN_RATE # 2 for setting a permissible range of a band.

The execution result (1) indicates a return value when the command was executed normally, and the individual control command Cs
Is 0 and the common control command Cc is ACK. The execution result (2) indicates a return value at which the command of # 1 (argument 1) is abnormally executed. The individual control command Cs is 1, and the common control command Cc is # 1 Parameter Error. The execution result (3) indicates a return value when the command of # 2 (argument 2) is abnormally executed, and the individual control command Cs is 2,
The common control command Cc becomes # 2 Parameter Error.

For the third line, the HE of the common control command Cc
ADER_CHANGE # 1 # 2 is one of the header rewriting commands. Individual control command Cs corresponding to this command
Has been unspecified. This is the table T
Indicates that the network device having the header function does not have the header rewriting function.

The execution result (1) in this case is that the individual control command Cs is NULL and the common control command Cc is UNSU
Become PPORTED. Next, a detailed operation of the network system 1 will be described. FIG. 8 is a sequence diagram showing a detailed operation of the network system 1. Setting command Cm
3 shows the operation related to. [S10] The user interface unit 13 transmits a control instruction for generating the setting command Cm to the setting command processing unit 12-1.

[S11] Setting command processing section 12-1
Generates the setting command Cm and transmits it to the server-side communication unit 14. [S12] The server-side communication unit 14 transmits the setting command Cm to the network device 20 via the network.

[S13] The client side communication unit 25
The setting command Cm is received and transmitted to the selector 26. [S14] The selector 26 recognizes that the received data is the setting command Cm, and
Send to

[S15] The database management means 21
Based on the setting command Cm, the mapping information M in the database 21a is set. Further, the execution result is transmitted to the selector 26. [S16] The selector 26 recognizes that the execution result, which is the received data, is data to be transmitted to the network management apparatus 10, and transmits this to the client-side communication unit 25.

[S17] The client side communication unit 25
The execution result is received and transmitted to the network management device 10 via the network. [S18] The server-side communication unit 14 receives the execution result,
The execution result is transmitted to the setting command processing unit 12-1.

[S19] Setting command processing section 12-1
Decodes the execution result and transmits the decoded value to the user interface unit 13. [S20] The user interface unit 13 receives the decoded value of the execution result and displays it on a GUI screen.

FIGS. 9 and 10 are sequence diagrams showing the detailed operation of the network system 1. FIG. The operation related to the common control command Cc and the individual control command Cs is shown. [S30] The user interface unit 13 transmits a control instruction for generating the common control command Cc to the common control command processing unit 11-1.

[S31] Common control command processing section 11-
1 generates a common control command Cc and transmits it to the server-side communication unit 14. [S32] The server-side communication unit 14 transmits the common control command Cc to the network device 20 via the network.

[S33] The client side communication unit 25
The common control command Cc is received and transmitted to the selector 26. [S34] The selector 26 recognizes that the received data is the common control command Cc, and transmits it to the translating means 22.

[S35] The translation means 22 translates the common control command Cc into an individual control command Cs based on the database 21a. Further, the translated individual control command Cs is transmitted to the module control means 23. [S36] The module control means 23 executes the individual control command Cs to control the control target module 27. Then, the execution result is transmitted to the translation means 22.

[S37] The translation means 22 translates an execution result, which is a system of individual control commands Cs, into a system of common control commands Cc based on the database 21a. Then, the translated execution result is transmitted to the selector 26. [S38] The selector 26 recognizes that the execution result, which is the received data, is data to be transmitted to the network management device 10, and transmits this to the client-side communication unit 25.

[S39] The client side communication unit 25
The execution result is received and transmitted to the network management device 10 via the network. [S40] The server-side communication unit 14 receives the execution result,
It is transmitted to the common control command processing unit 11-1.

[S41] Common control command processing section 11-
1 decodes the execution result and sends the decoded value to the user interface unit 13. [S42] The user interface unit 13 receives the decoded value of the execution result and displays it on the GUI screen.

Note that the operation using the command receiving means 24 is the same as the processing flow, and the description is omitted.
As described above, the network system 1 of the present invention
Is a client of the network device 20 of the present invention.
And a network management device 10 according to the present invention, which is a server for centrally controlling the system.

Thus, the server can recognize a plurality of client groups having different control command systems (individual control commands Cs) without being aware of the difference between the command systems.
Since a group of clients can be controlled by a common control command (common control command Cc), the network device 20
It is possible to perform centralized network management in an integrated manner without depending on individual specifications.

Further, the database 21a including the mapping information M in which the common control command Cc and the individual control command Cs are mapped can be set in advance in the various network devices 20, so that it is different only by changing the database 21a. Individual control command Cs
To various network devices 20 having

Therefore, the network devices 20 of various vendors can be controlled by the common control command C without limiting the devices to be subjected to common control, including products to be released in the future.
c enables efficient control and enhances expandability.

[0063]

As described above, according to the network system of the present invention, a common control command is generated by a network management device, the common control command is translated into an individual control command by a network device, and a target module is controlled. Configuration. Thereby, the network can be centrally managed using the common control command without depending on various pieces of individual information of the network device, so that the flexibility and serviceability of the system can be improved. .

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of a network system according to the present invention.

FIG. 2 is a diagram showing an operation flow of the network system.

FIG. 3 is a diagram illustrating a configuration example of a network system.

FIG. 4 is a diagram showing a configuration of a network management device.

FIG. 5 is a diagram illustrating a configuration of a network device.

FIG. 6 is a diagram showing a screen display example.

FIG. 7 is a diagram illustrating an example of mapping information.

FIG. 8 is a sequence diagram showing a detailed operation of the network system.

FIG. 9 is a sequence diagram showing a detailed operation of the network system.

FIG. 10 is a sequence diagram showing a detailed operation of the network system.

[Explanation of symbols]

 Reference Signs List 1 network system 10 network management device 11 common control command generation means 12 setting command generation means 20 network device 21 database management means 21a database 22 translation means 23 module control means Cc common control command Cm setting command Cs individual control command M mapping information

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B089 GB02 JA35 JB14 KA13 KB04 KH01 5K030 KA07 MA01 MD00 5K033 BA08 CB02 DA01 DB20 EC00

Claims (5)

[Claims] In a network system for performing information communication on a network, a common control command which is a common command for integrally controlling devices connected to the network, and an individual control command which is an individual command of the device. A database management means for managing a database including mapping information obtained by mapping, based on the database,
Translation means for translating from the common control command to the individual control command or from the individual control command to the common control command; module control means for executing the individual control command and controlling a target module; A common control command generating means for generating the common control command; and a setting command generating means for generating a setting command for setting the mapping information. A network system, comprising: a network management device that manages devices collectively. 2. The network system according to claim 1, wherein said database management means and said translation means have an open architecture. 3. The network system according to claim 1, wherein the network device further includes command receiving means for receiving the common control command and the setting command from a device other than the network management device. 4. A network device for performing communication control in a network, comprising: a common control command that is a common command for integrally controlling devices connected to the network; and an individual control command that is an individual command of the device. Database management means for managing a database including mapping information obtained by mapping, and translation for performing translation from the common control command to the individual control command or from the individual control command to the common control command based on the database. And a module control unit configured to execute the individual control command to control a target module. 5. A network management device for collectively managing network devices that perform communication control in a network, wherein a common control command that is a common command for integrally controlling the network devices connected to a network is generated. A common control command generating unit; and a setting command generating unit for generating a setting command for setting mapping information by mapping the common control command and an individual control command that is an individual command of the network device. A network management device, characterized in that: