JP2002223226A - Network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a network system which is provided between a plurality of operation servers on a center side and shop side terminal devices and can add a shop without stopping a center operation and without a change on the center side. SOLUTION: Respective center operation routers 15 have communication routes 21 connected one-to-one to transit operation routers 33, communication routes 37 connecting the respective transit operation routers 33 with respective containing routers 36 are provided, and communication routes 41 connecting the containing routers 36 for containing shops with all shop routers 51 are provided. The respective center operation routers 15, transit operation routers 33, containing routers 36, and shop routers 51 select communication routes via which inputted information is to be outputted according to the inputted information and transmit the inputted information via the selected communication routes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network system interposed between a plurality of business servers on the center side and a network of stores, companies or organizations.

[0002]

2. Description of the Related Art In a conventional network configuration, there has been a form in which a center and a store are directly connected, and a client in the store directly communicates with a server in the center. At that time, the client was a client to the server, and the combination of server and client was of the same type. There are various known techniques for such connection between a client and a server. For example, in the Nikkei Communication May 17, 1999 issue P141, there is an example of a system in which the network configuration consists of a headquarters and a sales department, a headquarters has a server, and a sales department has a client, and communicates without relay between them. I have.

In recent years, there is a mechanism for processing a plurality of types of business in cooperation with a server. A request from a client is received by a HUB server, and the processing is performed by each necessary server behind the HUB server. Some sort of distribution schemes are coming out.

[0004] In addition, a system has been considered in which a center having a server and a store having a client are not directly connected, but a client connects to a relay point and the relay point connects to the center. As an example thereof, a technique disclosed in Japanese Patent Application Laid-Open No. 10-271161 is known.
The content is a client-server system via a relay device, and a method for controlling a session of a client-server system via a relay device for connecting or disconnecting a session between a server and a client that periodically outputs a certain type of real-time information. Also, as an example of a network configuration in which a relay unit is provided,
June 7, 1999 issue of Nikkei Communication P11
An example is given in 1. The network consists of a store, a collection / distribution center (relay section), and a headquarters. The store sends daily sales amount, attendance information, customer information, etc., to the headquarters, and a menu and recipe database from the headquarters to the store. And communication documents.

[0005]

According to the prior art, first, a center server is provided, a client is provided in a store, and a network configuration system in which the server and the client are directly connected is adopted. It is only necessary for the center to accept the same type of work, but it is not the case, but it is desirable to set a guarantee of the line bandwidth for each type of server or to give priority to the traffic. Or, if there is a request to flow traffic with some level of guarantee for delay or delay variation, it cannot be handled.

[0006] A function of classifying certain guarantees for priority control, bandwidth guarantee, delay or delay variation, and sending traffic is provided by a service quality QoS (Quo).
Ability of Service).

FIG. 11 shows this state. 1 is the center, 5
Is a store, and 60 is a line connecting the center 1 and the store 5. In the center 1, 11-1, 11-2, 11
-3 is a server (11 indicates any server), 13
Is a hub, 15 is a center business router, 12 is a server 1
A cable connecting 1 to the HUB 13, 14 is a HUB 13
And a cable connecting the center business router 15 to the network. In store 5, 51 is a store router, and 53 is HU.
B, 55-1, 55-2, and 55-3 are terminals (55 indicates any terminal), and have a client function of accessing the server 11. 52 is the store router 5
1 is a cable connecting HUB5 and 54 is HUB
This is a cable connecting the terminal 53 and the terminal 55.

The routers exchange network information with each other and recognize the locations of the server network and the store network. The terminal 55 of the store communicates with the server 11 of the center 1 through the following route. Terminal 5
5, a cable 54, a HUB 53, a cable 52, a store router 51, a line 60, a center business router 15, a cable 14, a HUB 13, a cable 12, and a server 11. In addition, the server 11 sends the terminal 55 of each of the stores 5 by following the above route in reverse.
And can communicate.

However, at this time, the terminal 55-1 communicates exclusively with the server 11-1, the terminal 55-2 communicates exclusively with the server 11-2, and the terminal 55-3 similarly communicates with the server 11-1. When the terminal 55-1 communicates exclusively with the server 11, the terminal 55-1 may want to communicate with the server 11-1 with a higher priority. However, this is not possible because the communication path is the same.

The communication path a in FIG.
-1 indicates a communication path for communication with the server 11-1, communication path b indicates a communication path for the terminal 55-2 to communicate with the server 11-2, and communication path c indicates a communication path for the terminal 55-3 to the server 1
1 shows a communication path for communicating with 1-3.

For example, if the capacity of the line 60 in FIG.
There are times when it is desired to perform communication by specifying the settings 1 and 2 in FIG. 3 using the communication paths a, b, and c in FIG. 11 in bps.

In the setting 1 shown in FIG. 3, the communication path a is used preferentially up to 500 kbps, and the communication path b is
s is used preferentially, and the communication path c communicates with the remaining capacity.

In the setting 2 of FIG. 3, the communication path a takes priority up to 100 kbps even if it is used by another, and the communication path b
Is 350 kbps whether or not communication path a is used
It is specified that the communication path c can be used up to 500 kbps because the communication paths a and b are not used, and that the communication path c can be used up to 500 kbps when the communication paths a and b are not used.

These are examples of the designation of communication after the communication path is secured. Even when communication is to be performed with such settings, this configuration method cannot cope with the same route because the same route is used.

In the above description, the communication paths a, b, c
However, the router regards the communication path equally as a candidate for the communication path, and even if a plurality of communication paths are provided for the path in which the terminal 55-1 communicates with the server 11-1, of the communication paths a, b, and c, Cannot be fixed to the priority communication path a.

For this reason, it is conceivable to divide the entrance of the center by business or business type. The configuration is the case 1 in FIG. At this time, the center is changed every time when the connection of the store where the client is installed is added. In addition, in this configuration, it is necessary to change the setting of the communication device of the center in order to add a store. However, the center may not be able to be stopped for convenience of service provision, confirmation, and various other reasons. In addition, it is difficult for a worker to enter a store-accommodating device in the center and perform a connection operation because an unexpected contact is made or the connection is disconnected. Also, in a system with multiple vendors, it is natural to coordinate with each vendor. However, there are times when it is not possible to connect well because of mutual disagreement or misinterpretation of the material that came out. For this reason, it is better not to make the situation that changes of other vendors occur every time, in terms of paperwork for performing both changes at the same time, as well as confirmation work after change and time required for it. It has good prospects and good things.

Further, in this method, when the type of business of the center increases, it is necessary to provide a path connecting the business and the store, and it is necessary to change all the stores already constructed, which is a good method. Absent.

In the prior art of a system in which a center having a server and a store having a client are not directly connected, but a client connects to a relay point and the relay point connects to the center, a communication path is used. Are the same, so we want to set a guaranteed line bandwidth for each type of server, or to give priority to traffic flow, or to classify traffic with delays or delay fluctuations. We cannot respond to the demand that we want to shed.

Further, in the conventional technique of processing a plurality of types of business in cooperation with a server, the HUB server receives all client requests, and distributes the processing to each required server behind the HUB server. It is a system of dividing system, and does not take into account the relationship between another server and a client which are not shared by a HUB server. In a system that accepts data in a centralized manner, since the communication path is the same, it is desirable to set a guaranteed line bandwidth for each type of server, or to give priority to traffic flow, However, it is not possible to respond to a request to flow traffic with some guarantees for delay fluctuations.

Even in the configuration shown in FIG. 2, since the communication path is the same, it is desired to set a guaranteed line bandwidth or to assign a priority to flow traffic for each type of server. Or, it is impossible to respond to a request to flow traffic with some level of guarantee for delay or delay variation. 1 is a center, 3 is a relay unit, 5 is a store, 2 is a center 1 and a relay unit 3
Is a line connecting the relay unit 3 and the store 5. In the center 1, 11-1, 11-2,
11-3 is a server, 13 is a HUB, 15 is a center business router, 12 is a cable connecting the server 11 and the HUB 13, and 14 is a cable connecting the HUB 13 and the center business router 15. The store 5 has a store router 51, a hub 53, 55-1, 55-2, and 55-3.
Is a terminal, and has a client function for accessing the server 11. The relay unit 3 includes a relay router 30.
It is connected to the center business router 15-2 via the line 2 and to the store router 51 via the line 4. 52 is a cable connecting the shop router 51 and the HUB 5, and 54 is a cable connecting the HUB 53 and the terminal 55-.
1, 55-2, and 55-3.

The routers exchange network information with each other and recognize the locations of the server network and the store network. The terminal 55 of the store communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, line 4, relay router 30, line 2, center business router 15, cable 14, HUB 13, cable 1
2. The route is called the server 11. Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse.

However, at this time, the terminal 55-1 communicates exclusively with the server 11-1, the terminal 55-2 communicates exclusively with the server 11-2, and the terminal 55-3 similarly communicates with the server 11-1. When the terminal 55-1 communicates exclusively with the server 11, the terminal 55-1 may want to communicate with the server 11-1 with a higher priority. However, this is not possible because the communication path is the same.

The communication path a in FIG.
1 indicates a communication path for communication with the server 11-1, communication path b indicates a communication path for the terminal 55-2 to communicate with the server 11-2, and communication path c indicates a communication path for the terminal 55-3 to the server 11-1.
3 illustrates a communication path for communication with the C-3.

For example, if the capacity of the line 60 in FIG.
In s, the communication paths a, b, and c in FIG.
There are times when you want to make a communication by specifying such as 2.

In the setting 1 shown in FIG. 3, the communication path a is preferentially used up to 500 kbps, and the communication path b is
s is used preferentially, and the communication path c communicates with the remaining capacity.

In the setting 2 of FIG. 3, the communication path a takes priority up to 100 kbps even if it is used by another, and the communication path b
Is 350 kbps whether or not communication path a is used
It is specified that the communication path c can be used up to 500 kbps because the communication paths a and b are not used, and that the communication path c can be used up to 500 kbps when the communication paths a and b are not used.

These are examples of specifying communication after a communication path is secured. Even when communication is to be performed with such settings, this configuration method cannot cope with the same route because the same route is used.

In the above description, the communication paths a, b, c
However, the router regards the communication path equally as a candidate of the communication path, and even if a plurality of communication paths are provided for the path in which the terminal 55-1 communicates with the server 11-1, the communication paths a, b, and
Of c, it cannot be fixed to the preferential communication path a.

The present invention has been made in view of such a problem, and solves the following problems as compared with a system in which a store is directly connected to a center or a system in which reception is simply concentrated at a center. The purpose is to do.

One of the reasons is that the center cannot be stopped due to the additional store connection when the direct connection is not performed via the relay unit. However, in the system of the present invention, the operation of the center business is not stopped. It is an object of the present invention to be able to connect by adding a store.

Another object is to minimize the change of the center by adding a store. This occurs once when the number of stores exceeds the number of stores in the store of network devices. The frequency is
It can be said that it is low enough.

It is another object of the present invention to reduce the number of paths between the center and the relay unit to facilitate maintenance. If the type of center business is about three types, the maintenance can be performed every time. However, if the number of types of business increases, for example, when the number of types becomes about ten, if the connection between the center business server and the store is individually configured, The number of lines going between the center and the store becomes enormous. Further, when there are about 10 types of business and a situation requiring about 10 accommodation devices for accommodating stores is required, a path extending between the center and the relay unit becomes 10 × 10.
= 100 passes are required, which is difficult. this,
It is an object of the present invention to reduce the number of paths between a center and a relay unit to facilitate maintenance.

Another object is to confine device changes to the relay unit. If there is a change in both the center and the relay unit, it is necessary to make both changes at the same time, but it may not be possible to cope at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, an object is to make the configuration hard to cause a problem.

Another object is to eliminate the necessity of setting a new line path with an existing store when the number of operations of the center increases on the way.

Although the center and the relay unit are used, the names are not the names given to the geographical locations, but are the same as long as the router for accommodating the store and the center business router are separated in the center.

Although the center is referred to as an explanation, it is a place where a server is located, and the same applies to a headquarters or the like. In addition, we use the word store,
This is where the client is, and the same is true for sales departments, branches, and branch offices. Further, the present invention is not limited to a fixed place, and is the same even when moving or inside a moving body if used as a client function.

In the above description, the center, the relay unit, and the store have been described. This is an example of the inside of one company. However, it may be a network within one company or a network of an organization. Good, or a network of federations. In addition, in the network system for providing services to each company or group, the store may be one company or group. Therefore, a network system and a network configuration method in which the word "store" is used as a network of a company or an organization are also taken into consideration.

For communication between the center and the store, or between the service providing unit and a network of a company or an organization, a relay unit is a network provided with a service to a network service provider. Inter-communication may be performed.

[0039]

According to the present invention, there is provided a network system interposed between a plurality of business servers on a center side and a terminal device on a store side, wherein the network system includes at least one business server connected to the business server. A first communication device, a second communication device provided at each store and connected to the terminal device, and a relay third communication interposed between the first communication device and the second communication device. A communication path connecting each of the first communication device and each of the third communication devices, and a communication path connecting the third communication device and the second communication device. Each of the first, second, and third communication devices is configured to select a communication path to output the information from the input information, and to transmit the input information to the selected communication path. Features a network system. Here, instead of “having a communication path connecting each of the first communication device and each of the third communication devices”,
"At least one associated with each of the first communication devices
A communication path for connecting two third communication devices. "

The present invention also provides a relay third communication device interposed between the first communication device and the second communication device and connected to the first communication device, and a first communication device. A relay fourth communication device interposed between the device and the second communication device and connected to the second communication device, wherein each of the first communication devices is any one of the third communication devices. A communication path connecting the third communication device to each of the fourth communication devices, and connecting the fourth communication device to the second communication device. Communication paths, and the first, second, and third
And the fourth communication device is characterized by a network system configured to select a communication path to output the information from the input information, and to transmit the input information to the selected communication path. Here, “there is a communication path that connects each of the third communication device and each of the fourth communication devices”.
Instead, the configuration may be such that “there is a communication path for connecting at least one fourth communication device corresponding to each of the third communication devices”.

Further, the term "company / organization network" is replaced with "company / organization network" in place of the "store terminal apparatus", and "company / organization network" provided in each shop and connected to the terminal apparatus. Network to be connected to the network system described above. "

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 16 is a diagram showing a network configuration of a store, a relay unit, and a center according to the first embodiment of the present invention. 1 is a center with a server, 2 is a line, 3 is a relay unit, 4 is a line, and 5 is a store with a client. The line 2 is a line connecting the center 1 and the relay unit 3, and the line 4 is a line connecting the relay unit 3 and the store 5. Reference numeral 11 denotes a server in the center 1, reference numeral 13 denotes a HUB in the center 1, reference numeral 15 denotes a center business router in the center 1, reference numeral 12 denotes a server 11 in the center 1,
3 is a cable to connect. 14 is the HU in the center 1
This is a cable connecting the B13 and the center business router 15. Reference numeral 17 denotes an ATM switch in the center 1;
Is a cable connecting the center service router 15 and the ATM switch 17 inside the center 1. 31 is the relay unit 3
And an ATM switch 36 in the relay unit 3. The accommodation router 36 is a router having a large number of stores 5 and accommodating the large number of stores 5. 32 is the relay unit 3
This is a cable that connects the ATM switch 31 and the accommodation router 36 in the inside. Reference numeral 51 denotes a store router in the store 5;
Reference numeral 3 denotes a HUB in the store 5, 55 denotes a terminal in the store 5, and 52 denotes a store router 51 and a HUB 53 in the store 5.
Is a cable connecting the HUB 53 and the terminal 5
5 is a cable connected to the store 5.

FIG. 17 is a detailed drawing showing the store 5 of FIG. 16 for one store. 5 is a store, 51 is a store router, 53 is a HUB, and 52 is a store router 51 and a HUB.
53 is a cable for connecting, 55 is a terminal, 54 is H
This is a cable for connecting the UB 53 and the terminal 55. In addition,
Store 5 has a plurality of terminals, 55-1, 55-2, 5
5-3 shows a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, line 4, accommodation router 36, cable 32, A
TM switch 31, line 2, ATM switch 17, cable 16, center business router 15, cable 14, HU
The path is B13, cable 12, and server 11.
Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse. In the ATM communication, there is one physical line, and a logical line is internally connected to the other party by fixed connection (P
VC: Permanent Virtual Connections or destination selection connection (SVC: Switched Virtual Connections)
Can have as. ("ATM Internetworking", published by Nikkei BP Publishing Center, September 2, 1995
2nd day PP13-14, P151) ("The logical communication path is called VC (virtual channel). In ATM,
A VCI (Virtual Channel Identifier) is included in the cell header assigned to each ATM cell, and multiple VCs can be set for one physical interface. "Technical reference materials for ATM-only services, second edition," published by the Telecommunications Association of Japan, P9, January 22, 1999. As mentioned above, the accommodation router 36 has a large number of stores 5 and a large number of them. The router that houses the store 5. The accommodation router 36 has a limitation on the number of stores to accommodate, and here, there is a limitation that one accommodation router 36 can accommodate up to 50 stores 5. Therefore, a plurality of accommodation routers 36 are prepared for the number of stores exceeding the number, and the stores 5 are accommodated.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. The server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store business, and the server 11-3 is a server for information systems such as in-house mail communication. Each of these servers 11-1 and 11
2 and 11-3, the center business router 15 is separately provided, and the center business routers 15-1, 15-2, and 15-3 are provided to provide communication paths. Further, in the relay unit 3, a housing router 36 is provided to house the store 5, and each business has a communication path for communicating with the center business routers 15-1, 15-2, and 15-3. The routers exchange information with each other, and each type of server network is located ahead of the accommodation router 36 on a different route. The terminal 55-1 is an automatic machine communicating with the server 11-1 corresponding to the automatic machine, the terminal 55-2 is a store business terminal communicating with the server 11-2 corresponding to the store business, and the terminal 55-
Reference numeral 3 denotes an information terminal such as an in-house mail communication. Here, it is assumed that the types of terminals are different.
It is also possible that the same application is installed in the same type of terminal in all of the terminals 5-1, 55-2, and 55-3, and the applications running on the terminals are different. The terminals 55, 55-1, 55-2, and 55-3 can communicate with each of the servers 11-1, 11-2, and 11-3.

In this way, the physical line connected from the store 5 to the relay unit 3 is one, and the physical line of the ATM technology is one and a plurality of logical lines are connected. By connecting using the PVC or SVC technology that is used separately, the route to access each server is different from the accommodation router 36 when viewed from the store,
Server 11-1 for automatic machines, server 1 for store operations
1-2, information server 11- such as in-house mail communication
The route to 3 is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 for an automatic machine, a server 11-2 for a store operation, and a server 11-3 for an information system such as an in-house e-mail communication system.
Consider a case in which there is a request to flow traffic with prioritization in the order of 1-1, server 11-2, and server 11-3.

The ATM switch 31 of the relay unit shown in FIG.
In the ATM switch 17 of the center, priority 1, 2, 3
And a function for processing in the order of priority 1, 2, and 3. Server 11 along the route between the terminal of the store and the server of the center
Where the routes -1, 11-2, and 11-3 are different, the route for the server 11-1 is given priority 1, the route for the server 11-2 is given priority 2, and the route for server 11-3 is given. Priority 3 is assigned to the route. When the line between the store 5 and the relay unit 3 is a line that cannot use the technology of PVC or SVC that uses a real line by logically dividing the line, the network of the server 11-1 and the server 11
-2 and the network of the server 11-3 are assigned priorities 1, 2, and 3 for processing. In the direction from the relay unit 3 to the store 5, the network of the server 11-1 and the server 1
The processing is divided into priority 1, 2, and 3 for each of the network 1-2 and the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, the server 11-1 which is each destination network
, The network of the server 11-2, and the network of the server 11-3. The allocation of the line bandwidth is as follows:
Even if there is lower priority traffic, the store router 5
1, data for the server 11-1, data for the server 11-2, and data for the server 11-3 are prioritized in this order, and the upper class is preferentially assigned a bandwidth, and the server 11-1 Data for the server 11-
The data for the second and the data for the server 11-3 are processed in order of priority.

The data enters the accommodation router 36, exits from the accommodation router 36, and is ranked in the ATM switch 31 by the route. The data for the server 11-1 and the data for the server 11-2 and the data for the server 11-3 are assigned. The data is processed in priority order in the order of the data, and is passed to the center. In the center ATM switch 17 (when there is only one center ATM switch), the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3 are prioritized and processed in this order. , Data for the server 11-1,
The data for the server 11-2 and the data for the server 11-3 are prioritized and processed in this order. When the center ATM switch is provided for each class, it is assumed that the ATM switches are operating almost simultaneously, and the server 1
The data for 1-1, the data for server 11-2, and the data for server 11-3 are prioritized and processed in this order.

In the direction from the center 1 to the store 5, it is assumed that the center business is processed at the same time, and the center ATM
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Is processed with priority in the order of data from the server 11-1, data from the server 11-2, and data from the server 11-3, and is passed to the accommodation router 36. Here, the server 11-1
From server, data from server 11-2, server 1
Data is assigned to the band in priority order from data 1-3,
The data is passed to the store router 51. The processing is performed in the order of the data received by the store router 51, and the priority processing and the band control are performed.

In this way, the priority processing in the communication path distribution part and the integration part when the distribution part is viewed from the divided side can be regarded as the integration part. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

In this case, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path corresponding to voice communication, and traffic may be flowed with some level of assurance regarding delay or delay variation with respect to voice.

Further, when the store 5 is newly added, if the accommodation port of the accommodation router 36 is vacant, the connection can be made as it is, and no operation such as stopping the equipment in the center 1 is required. Further, there is no need to change the equipment of the center 1. When the store 5 is added and the number of accommodated routers 36 exceeds the limit, the accommodated router 36 is added, and the added accommodated router 36 becomes the center business router 15-1,
It is necessary to set communication routes with 15-2 and 15-3, but this occurs once due to the limitation of the accommodation port of the accommodation router 36, not every time a store is added. That is, from 50 stores to 100
This occurs once in connection with the store, and it can be said that the frequency is sufficiently low. When the store 5 and the center 1 are directly connected, the number of services of the center 1 is P with respect to the number of stores N when the store 5 and the center 1 are directly connected. According to this method, the number of routes extending between the center 1 and the relay unit 3 is:
Assuming that the accommodation limit number of the accommodation router 36 is a, ([(N−
1) / a] +1) × P, which is very small. Note that the symbol [] indicates that when a decimal part appears in the calculation therein, the calculation is rounded down. As a result, when a customer's network system is formed by a plurality of vendors, another vendor enters between the center 1 and the relay unit 3.
Trouble will be prevented beforehand.

In the above example, the center service router 15 is provided for each service in the center 1. However, if the line capacity and other conditions allow, the same center service router 15 is provided.
-2, a server 11- which is a different type of server.
2 and the server 11-4.

Also, in the example given here, all stores 5 of the same type are connected. However, even in a network within one company, stores 5 are not the same type of store. May be. In other words, a bank accesses three types of servers as manned stores: an automatic machine server, a store business server, and an in-house information system server. In an unmanned store, there are almost only automatic machines. Access. As described above, the type of server to be accessed may be different for each store or for each type of store.

It is not necessary that all communication paths between the relay unit 3 and the center 1 have a path, and the accommodation router 361 may have a communication path with only a part of the center business router. As described above, the communication paths that can access the services provided in the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified.

A sub-center may be provided as shown in FIG. The configuration in the sub-center is the same as the configuration in the center 1. The illustration of the ATM switch 17 and the ATM switch 31 is omitted. If the relay unit 3 is provided, a sub-center is provided in this way, and when a failure occurs in the center, the communication path 21 between the sub-center and the relay unit 3 is used, or traffic to both centers is distributed. It is possible.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and sub-centers. The same can be said for a network configuration in which the sub-center has the service 4 as long as the relay unit and the sub-center are connected.

For communication between the center 1 and the store 5 or between the service providing unit and a network of a company or an organization, a relay unit is a network provided to a network service provider.
The same can be said for a device that can perform server-client communication.

As described above, according to the first embodiment of the network configuration system according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request that a traffic is made to flow with a priority order, or a traffic is made to flow with some level of guarantee for delay or delay variation.

In addition, the following problems can be solved as compared with a system in which a store is directly connected to a center or a system in which reception is simply concentrated at a center.

One of the reasons is that, in the case of direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, it is possible to connect by adding a store without stopping the center. it can.

For one thing, it is possible to minimize the change on the center side by adding a store. The change on the center side occurs once when the number of accommodations exceeds 50 to 100 stores, depending on the number of accommodations of the network devices. It can be said that the frequency is sufficiently low.

On the one hand, the number of communication paths (paths) extending between the center and the relay unit is reduced, and maintenance is facilitated. If there are about three types of center operations, the maintenance can be performed every time. However, if the number of operations increases, for example, if the number of types becomes about ten, the connection between the business server on the center side and the store will be individually configured. Then
The number of lines going between the center and the store becomes enormous.
Further, when there are about 10 types of business and a situation requiring about 10 accommodation devices for accommodating stores is required, the path established between the center and the relay unit becomes 10 × 10 = 1.
00 passes are required, which is very difficult. In the present invention, this is achieved by reducing the number of paths between the center and the relay unit,
Easy maintenance.

Also, for one thing, even if the equipment is changed,
It does not affect the server 11 directly. Further, the change of the device is absorbed by the relay unit 3 and confined to the relay unit as much as possible. If there is a change in both the center and the relay unit, it is necessary to make both changes at the same time, but it may not be possible to cope at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0086] One reason is that when the number of operations of the center increases in the middle, it is not necessary to set a new line path with the existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. And the relay business router 33-
If there is no problem with the traffic capacity in the route 2, the communication route is drawn out from the center business router 15-2 and, for example, a server 11-4 is provided and the center business router 15-
-2, a path for communicating with the store 5 through the communication path of the relay router 33-2 can be provided. In this way,
When the work of the center increases on the way, it is not necessary to set a new line path with the existing store.

A second embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 4 shows a network configuration diagram of a store, a relay unit, and a center according to the second embodiment of the present invention. 1 is a center with a server, 2 is a line, 3 is a relay unit, 4 is a line, and 5 is a store with a client. The line 2 is a line connecting the center 1 and the relay unit 3, and the line 4 is a line connecting the relay unit 3 and the store 5. Reference numeral 11 denotes a server in the center 1, reference numeral 13 denotes a HUB in the center 1, reference numeral 15 denotes a center business router in the center 1, and reference numeral 12 denotes a server 11 and the hub 13 in the center 1.
Is a cable that connects 14 is a HUB in the center 1
13 and a cable connecting the center business router 15. Reference numeral 17 denotes an ATM switch in the center 1;
Is a cable connecting the center service router 15 and the ATM switch 17 inside the center 1. 31 is the relay unit 3
, An ATM switch 33, a relay business router 33 in the relay unit 3, and an accommodation router 36 in the relay unit 3. The accommodation router 36 is a router having a large number of stores 5 and accommodating the large number of stores 5. Reference numeral 32 denotes a cable connecting the ATM switch 31 in the relay unit 3 and the relay service router 33. Reference numeral 34 denotes a cable for connecting the relay service router 33 and the ATM switch 31, and reference numeral 35 denotes a cable for connecting the ATM switch 31 and the accommodation router 36. 51 is a store router in the store 5, 53 is a HUB in the store 5, 55 is a terminal in the store 5, 52 is a cable connecting the store router 51 in the store 5 and the HUB 53, Reference numeral 54 denotes a cable in the store 5 for connecting the HUB 53 and the terminal 55.

FIG. 5 is a detailed view of the inside of the store 5 in FIG. 4, where 5 is a store, 51 is a store router, and 53 is a HU.
B and 52 are cables connecting the shop router 51 and the HUB 53, 55 is a terminal, and 54 is a HUB 53 and a terminal 55.
Is a cable that connects Note that the store 5 has a plurality of terminals, and 55-1, 55-2, and 55-3 indicate a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, line 4, accommodation router 36, cable 35, A
TM switch 31, cable 34, relay business router 3
3, cable 32, ATM switch 31, line 2, AT
M switch 17, cable 16, center business router 1
5, a cable 14, a HUB 13, a cable 12, and a server 11. Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse. In addition, ATM
In communication, one physical line is used, and a logical line is internally connected to a fixed destination (PVC: Permanent Virtual Connection).
Selections) or Selective Connection (SVC: Switched Vi)
rtual Connections). ("A
TM Internetworking ", published by Nikkei BP Publishing Center, September 22, 1995, PP13-14, P151)
("A logical communication channel is called a VC (virtual channel). ATM has a VCI (virtual channel identifier) in a cell header attached to each ATM cell.
Multiple VCs can be set for one physical interface. "Technical reference materials for ATM-only services, second edition," published by the Telecommunications Association of Japan, P9, January 22, 1999. As mentioned above, the accommodation router 36 has a large number of stores 5 and a large number of them. The router that houses the store 5. The number of accommodation routers 36 is limited, and here, there is a limitation that a single accommodation router 36 can accommodate up to 50 stores 5. Therefore, the accommodation router 36
Are prepared to accommodate the store 5.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. The server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store business, and the server 11-3 is a server for information systems such as in-house mail communication. Each of these servers 11-1 and 11
-2 and 11-3, the center business router 15 is divided into the center business routers 15-1, 15-2, and 15-3.
Is provided to provide a communication path. In the relay unit 3, the relay business router 33 is provided for each business.
3-1, 33-2, 33-3 are provided, the relay business router 33-1 is a center business router 15-1, the relay business router 33-2 is a center business router 15-2, and the relay business router 33. -3 has a communication path for communicating with the center business router 15-3. The routers exchange information with each other, and each type of server network is located ahead of the accommodation router 36 on a different route. Although not shown, the terminal 55-1 is an automatic machine communicating with the server 11-1 corresponding to the automatic machine, and the terminal 55-2 is a store business terminal communicating with the server 11-2 corresponding to the store business. , The terminal 55-3 is classified as an information terminal such as an in-house mail communication. Here, it is assumed that the types of the terminals are different. However, it is assumed that the same application is installed on the same type of terminal in all of the terminals 55-1, 55-2, and 55-3, and the application running on the terminal is different. May be. Terminals 55-1, 55-2, 55-3
Can communicate with each of the servers 11-1, 11-2, and 11-3, and the communication route is distributed by the accommodation router 36.

In this way, the physical line connected from the store 5 to the relay unit 3 is one, and the physical line of the ATM technology is one and is connected to a plurality of logical lines. By connecting using the PVC or SVC technology that is used separately, the route to access each server is different from the accommodation router 36 when viewed from the store,
Server 11-1 for automatic machines, server 1 for store operations
1-2, information server 11- such as in-house mail communication
The route to 3 is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 corresponding to an automatic machine, a server 11-2 corresponding to a store business, and a server 11-3 for information system such as in-house mail communication are respectively connected to the server 11-1.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

The ATM switch 31 of the relay unit shown in FIG.
In the ATM switch 17 of the center, priority 1, 2, 3
And a function for processing in the order of priority 1, 2, and 3. Server 11 along the route between the terminal of the store and the server of the center
Where the routes -1, 11-2, and 11-3 are different, the route for the server 11-1 is given priority 1, the route for the server 11-2 is given priority 2, and the route for server 11-3 is given. Is given a priority of 3. In addition, between the store 5 and the relay unit 3, a PVC or SVC that uses an actual circuit logically divided is used.
In the case of a line where the technology cannot be used, priority 1, 2, and 3 are assigned to each destination network, that is, the network of the server 11-1, the network of the server 11-2, and the network of the server 11-3. In the direction from the relay unit 3 to the store 5, the network of the server 11-1 and the server 11-2 are not the destination network but the source network.
And the priorities 1, 2, and 3 are processed separately for each network of the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, the server 11-1 which is each destination network
, The network of the server 11-2, and the network of the server 11-3. The allocation of the line bandwidth is as follows:
Even if there is lower priority traffic, the store router 5
1, the data for the server 11-1 is prioritized in order of the data for the server 11-2, and the data for the server 11-3, and the higher class is preferentially assigned a bandwidth, and the server 11-1 For data, server 11-2
Is processed in the order of data destined for the server and data destined for the server 11-3. The data enters the accommodation router 36, exits from the accommodation router 36, and is ranked in the ATM switch 31 according to the route. Prioritized processing is performed, and data for each server is processed by the relay business router 33. The data for the server 11-1 and the data for the server 11-2 and the data for the server 11-3 are again processed by the ATM switch 31. The data is prioritized and processed in the order of the data, and is passed to the center. Center ATM switch 17
(When there is one center ATM switch), data for the server 11-1, data for the server 11-2,
The data is processed with priority given to the data for the server 11-3. As a result, the data is processed with priority given to the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3. You. The center AT
When the M switch is provided for each class, it is assumed that the switches are operating almost simultaneously, and the server 11-
The data for the first, the data for the server 11-2, and the data for the server 11-3 are processed in priority order.

Further, in the direction from the center 1 to the store 5, it is assumed that the center business has been
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order, and is passed to the relay business router 33, passed again to the ATM switch 31, and passed to the ATM switch 31 again. Data from 1, server 1
The data is processed with priority in the order of data from 1-2 and data from the server 11-3, and is passed to the accommodation router 36. Here, a band is preferentially allocated in the order of the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3, and the data is passed to the store router 51.
The processing is performed in the order of the data received by the store router 51, and the priority processing and the bandwidth control are performed.

As described above, the priority processing in the communication route distribution portion and the distribution portion are viewed as an integrated portion when viewed from the divided side. However, the priority processing is also performed when the communication routes are integrated. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

Here, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path corresponding to voice communication, and traffic may be flowed with some level of assurance regarding delay or delay variation with respect to voice.

When the store 5 is newly added, if the accommodation port of the accommodation router 36 is vacant, the connection can be made as it is, and it is not necessary to stop the equipment in the center 1. Further, there is no need to change the equipment of the center 1. When the store 5 is added and the number of accommodated routers 36 exceeds the limit, the accommodated router 36 is added, and the added accommodated router 36 is connected to the relay business routers 33-1 and 33-1.
It is necessary to set communication routes with 3-2 and 33-3,
This occurs once, not every time a store is added, but due to the limitation of the accommodation port of the accommodation router 36. This occurs once per connection from 50 stores to 100 stores depending on the number of accommodation restrictions of the accommodation router 36, and it can be said that the frequency is sufficiently low. Further, if the number of communication routes extending between the center 1 and the relay unit 3 is such that the store 5 and the center 1 are directly connected, the number of services of the center 1 is P for the number of stores N.
Is N × P, but according to this method,
The number of paths extending between the center 1 and the relay unit 3 is P, which is very small. Thereby,
When a customer's network system is constructed by a plurality of vendors, another vendor enters between the center 1 and the relay unit 3. In this method, it is necessary to prevent trouble beforehand. Becomes

In the above example, the center service router 15 and the relay service router 33 are provided for each service in the center 1. However, if the line capacity and other conditions allow, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

In the example described above, all stores 5 of the same type are connected. However, even in a network within one company, the stores 5 are not the same type of store. May be. In other words, a bank accesses three types of servers as manned stores: an automatic machine server, a store business server, and an in-house information system server. In an unmanned store, there are almost only automatic machines. Access. As described above, the type of server to be accessed may be different for each store or for each type of store.

It is not necessary that all communication paths between the relay unit 3 and the center 1 have a path.
0, as shown in FIG. 21, the accommodation router 36-1 may have a communication path only with a part of the relay business router 33. As described above, the communication routes that can access the services possessed by the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified. FIG. 2
0 and FIG. 21, the illustration of the ATM switch 17 and the ATM switch 31 is omitted.

FIG. 1 is a network configuration diagram in which the ATM switch 17 and the ATM switch 31 are not shown in the configuration of FIG. Reference numeral 37 denotes a communication path between the relay business router 33 and the accommodation router 36, which is simplified. In the above description, the router and the ATM switch are described separately, but a single device having both functions may be used. Whether the function is in one case,
There is no restriction as to whether they are parted in several enclosures.

FIG. 6 shows the configuration when a sub-center is provided. The configuration in the sub-center is the same as the configuration in the center 1. If the relay unit 3 is provided,
A sub-center is provided, and when the center fails, the sub-center and the relay unit 3
It is conceivable to use the communication path 21 between the two or to distribute traffic to both centers.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and a sub-center. For example, the main center has services 1, 2, and 3. The same can be said for a network configuration in which the sub-center has the service 4 as long as the relay unit and the sub-center are connected.

For communication between the center and the store, or between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider. The same can be said for a device that can perform inter-communication.

As described above, according to the second embodiment of the network configuration system according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request that a traffic is made to flow with a priority order, or a traffic is made to flow with some level of guarantee for delay or delay variation.

Further, the problems can be solved in the following points as compared with a system in which a store is directly connected to a center or a system in which reception is simply concentrated at a center.

One reason is that, in the case of direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, it is possible to connect by adding a store without stopping the center. it can.

In addition, for example, the addition of a store can minimize the change on the center side. The change on the center side occurs once when the number of accommodations exceeds 50 to 100 stores, depending on the number of accommodations of the network devices. It can be said that the frequency is sufficiently low.

On the one hand, the number of paths extending between the center and the relay unit is reduced, and maintenance is facilitated. If there are about three types of center operations, you can perform the maintenance every time, but the types of operations increase,
For example, when the number of types is about ten, if the connection between the business server on the center side and the store is individually configured, the number of lines drawn between the center and the store becomes enormous. Also, if there are about 10 types of business and a situation requiring about 10 accommodation devices for accommodating stores is required, the number of paths between the center and the relay unit is 10 × 10 = 100. Path is required, which is hard. In the present invention, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance.

On the one hand, the change of the device is confined to the relay unit. If there is a change in both the center and the relay,
It is necessary to make both changes at the same time, but it may not be possible at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0097] One reason is that when the number of operations of the center increases in the middle, it is not necessary to set a new line path with the existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. And the relay business router 33-
If there is no problem with the traffic capacity in the route 2, the communication route is drawn out from the center business router 15-2 and, for example, a server 11-4 is provided and the center business router 15-
-2, a path for communicating with the store 5 through the communication path of the relay router 33-2 can be provided. In this way,
When the number of operations of the center increases, it is not necessary to set a new line path with the existing store.

Note that FIG. 12, FIG. 13, FIG. 14, and FIG.
FIG. 9 is a diagram roughly summarizing features of each example (same as the embodiment). The figure shows a configuration diagram when the store / organization is within the limit of the number of routers accommodated in the relay unit 3 and a configuration diagram when the limit of the number of routers is exceeded. Also, if there is a stoppage of operations at the center due to the addition of stores / organizations,
Indicates whether there is no (○). Also, a change portion when the addition of a store / organization is within the limit of the number of routers accommodated in the relay unit 3 and a change portion when the limit of the number of accommodated routers is exceeded are shown.
Also, the number of routers in the center 1 and the relay unit 3 other than the store / organization is shown. Also, a quantitative and qualitative comparison of the number of paths between the center and the relay unit is shown. Also, the part that is changed by adding the center business, whether there is a reduction in the change effort in the case of coexistence with other vendors (（),
It shows whether there is an advantage of S and whether it can cope with a center failure.

FIG. 22 shows another example of the second, third, fourth, and fifth embodiments. Although the network configuration of each configuration 1 is described in each embodiment, a configuration like configuration 2 may be used. That is, server 1
1. Center business router 15 and relay business router 33
The number of (or the center accommodation routers 19) does not have to correspond to 1: 1: 1 (or 2) as in the configuration 1,
As in the configuration 2, a configuration in which a plurality of servers 11 are connected to one center business router 15 or a plurality of center business routers 15 are connected to one relay business router 33 may be employed.

The third embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 8 shows a network configuration diagram of a configuration of a store, a relay unit, and a center according to the third embodiment of the present invention. 1 is a center having a server, 21 is a communication path,
3 is a relay unit, 41 is a communication path, and 5 is a store where the client is located. The communication path 21 is a communication path connecting the center 1 and the relay unit 3, and the communication path 41 is a communication path connecting the relay unit 3 and the store 5. Also, 1
1 is a server in the center 1, 13 is a HUB in the center 1,
Reference numeral 15 denotes a center business router in the center 1, and reference numeral 12 denotes a cable connecting the server 11 in the center 1 to the HUB 13. Reference numeral 14 denotes a cable for connecting the hub 13 in the center 1 to the center business router 15. 33 is the relay unit 3
It is a relay business router inside. The relay business router 33 is a router that has a large number of stores 5 and accommodates the large number of stores 5 for each business. Here, the number of operations will be described in three types. 51 is a store router in the store 5, 53 is a HUB in the store 5, 55 is a terminal in the store 5, 5
Reference numeral 2 denotes a cable that connects the store router 51 in the store 5 to the HUB 53, and reference numeral 54 denotes a cable in the store 5 that connects the HUB 53 to the terminal 55. The illustration of the ATM switch 17 and the ATM switch 31 between the center business router 15 and the relay business router 33 is omitted, and the communication path 41 between the relay business router 33 and the store router 51 is provided on the relay unit 3 side. ATM switch and A on store 5 side
Illustration of the TM switch is omitted.

FIG. 5 is a detailed view of the store 5 in FIG. 8, where 5 is a store, 51 is a store router, and 53 is a HU.
B and 52 are cables connecting the shop router 51 and the HUB 53, 55 is a terminal, and 54 is a HUB 53 and a terminal 55.
Is a cable that connects Note that the store 5 has a plurality of terminals, and 55-1, 55-2, and 55-3 indicate a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, communication path 41, relay business router 33, communication path 21, center business router 15, cable 14, HUB
13, a cable 12, and a server 11. In addition, from the server 11, for each terminal 55 of the store 5, the above-described route is followed in reverse to reach the terminal 55,
Can communicate. In the ATM communication, there is one physical line, and a logical line is internally connected to the other party by fixed connection (PV
C: Permanent Virtual Connections) or a destination selection connection (SVC: Switched Virtual Connections).

As described above, the relay business router 3
Reference numeral 3 denotes a router having a large number of stores 5 and accommodating the large number of stores 5. There is a limit on the number of relay business routers 33 that can be accommodated. For example, here, there is a limitation that one relay business router 33 can accommodate up to 50 stores 5. Therefore, a plurality of relay business routers 33 are prepared to accommodate the store 5.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. For example, the server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store operation, and the server 11-3 is a server for information systems such as in-house mail communication. Each server 11
-1, 11-2, and 11-3 are divided into center business routers 15 respectively, and the center business routers 15-1, 15-2, and 15 are divided.
-3 is provided to provide a communication path. Also, the relay unit 3
In the relay business router 33, the relay business routers 33-11, 33-12, 33-21, 33-22,
33-31 and 33-32 are provided, and the relay business routers 33-11 and 33-12 are connected to the center business router 15-1.
The relay business routers 33-21 and 33-22 are connected to the center business router 15-2 and the relay business routers 33-31 and 33-33.
-32 has a communication path for communicating with the center business router 15-3. The routers exchange information with each other, and each type of server network is located ahead of the shop router 51 on a different route. A plurality of relay business routers 33-11 and 33-12 are provided due to the limitation of the number of stores in the store 5, and the relay business routers 33-21 and 33-2 are provided.
2. The same applies to the relay business routers 33-31 and 33-32. The terminal 55-1 is an automatic machine communicating with the server 11-1 corresponding to the automatic machine, the terminal 55-2 is a store business terminal communicating with the server 11-2 corresponding to the store business, and the terminal 55-3 is a terminal 55-3. It is classified like an information terminal such as in-house mail communication. Here, it is assumed that the types of the terminals are different. However, it is assumed that the same application is installed on the same type of terminal in all of the terminals 55-1, 55-2, and 55-3, and the application running on the terminal is different. May be. The terminals 55-1, 55-2, and 55-3 can communicate with each of the servers 11-1, 11-2, and 11-3, and the communication routes are distributed by the store router 51.

In this way, for example, the line connecting the store 5 and the relay unit 3 is divided into a plurality of logical lines by using a single physical line of the ATM technology.
By connecting using the technology of C, the access route to each server is different at the end of the store 5, and the server 11-1 corresponding to the automatic machine and the server 11 corresponding to the store business are connected.
-2, Information server 11-3 such as in-house mail communication
The route to each is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 for an automatic machine, a server 11-2 for a store operation, and a server 11-3 for an information system such as in-house mail communication.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

ATM switch 3 of relay unit not shown
The ATM switch 17 at the center, the ATM switch 17 at the center, and the ATM switch at the store have a function of assigning priorities 1, 2, and 3, and performing processing in the order of priorities 1, 2, and 3. Where the routes of the servers 11-1, 11-2, and 11-3 are different in the route between the store terminal and the center server, the route for the server 11-1 is given priority 1 and the route for the server 11-2. Route with priority 2
And assign a priority 3 to the route for the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, it is first-in first-out, but when entering the ATM switch (not shown) of the store, the order is ranked by route and is directed to the server 11-1. , Data for the server 11-2, and data for the server 11-3 in that order and are processed. In terms of the band, the store-relay unit also determines the PV of the route for each server.
Since C is as shown in the setting 2 in FIG. 3, even if there is lower-priority traffic, after the traffic is received by the store router 51, the store ATM switch (not shown)
The data for the server 11-1, the data for the server 11-2, and the data for the server 11-3 are prioritized in this order, and the higher class is preferentially assigned a band, and the relay unit 3-
The bandwidth between the center 1 and the store 5 is more sufficient than that between the relay unit 3 and the congestion does not occur between the relay unit 3 and the center 1 so that the transfer between the store 5 and the relay unit 3 can be performed. -1 data, server 11-2 data, server 11
-3 data is processed in priority order. Note that FIG.
The setting value of each route in setting 2 is 50 kbps with priority 1
+ 400 kbps of priority 2 <500 Kbps of the entire bandwidth of the line
The value is set so that data of the lowest order (class 4) flows even if there is traffic of the upper class. AT
In the M-switch 31, the order is similarly assigned by the route, and the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3 are given priority and processed in that order. At 33, data for each server is processed, and again at the ATM switch 31, data for the server 11-1 and data for the server 11-2.
The data is processed with priority given to the data for the server 11-3, and the data is transferred to the center. In the center ATM switch 17 (when there is one center ATM switch), the server 1
Data for 1-1, data for server 11-2, and data for server 11-3 are processed in priority order, and as a result, as a result, data for server 11-1, data for server 11-2, The data is processed with priority given to the data for the server 11-3. The ATM of the center
When the switch is in each class, it is assumed that the switches are operating almost simultaneously, and the server 11-1 as a whole is also
For server, data for server 11-2, server 1
The data is processed with priority given to data for 1-3.

Further, in the direction from the center 1 to the store 5, it is assumed that the center business has been
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order, passes the data to the relay business router 33, and then to the ATM switch 31 again. Here, when the line between the relay unit 3 and the store 5 is a line of 500 kbps, a PVC is set up as shown in the setting 2 in FIG.
-2 and the data from the server 11-3 are assigned to the bands in priority order, and the data is passed to the store router 51 via a store ATM switch (not shown). The processing is performed in the order of the data received by the store router 51, and the priority processing and the band control are performed.

In this way, the priority processing in the communication path distribution part and the processing of the distribution part can be seen as an integrated part when viewed from the divided side. Can be.

Similarly, of the line bandwidth, the line bandwidth required for each communication path may be specified.

Here, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path supporting voice communication, and traffic may be flowed with some level of guarantee for delay or delay variation for voice.

Further, when the store 5 is newly added, if the port for accommodating the relay business router 33 is vacant, the connection can be made as it is, and no operation such as stopping the equipment in the center 1 is required. Further, there is no need to change the equipment of the center 1.
When the store 5 is added and the number of relay business routers 33 exceeds the limit, the relay business router 33 is added, and the added relay business router 33 is the relay business router 33-12 and the center business router 33-12. 15-1, the relay business router 33-22 is the center business router 15-2, and the relay business router 33-32 is the center business router 15-3.
It is necessary to set a communication route, but this occurs once not because of addition of a store but due to the limitation of the port accommodated in the relay business router 33. It is a relay business router 3
Due to the number of accommodation restrictions of 3, one connection occurs from 50 stores to 100 stores, which is a sufficiently low frequency. Further, the number of communication routes extending between the center 1 and the relay unit 3 is as follows: if the store 5 and the center 1 are directly connected, the number of services of the center 1 is P with respect to the number of stores N. N × P, but according to this method, the center 1
The number of routes extending between the router 3 and the relay unit 3 is ([(N−1) /
a] +1) × P, which is very small. As a result, when a customer's network system is constructed by a plurality of vendors, another vendor enters between the center 1 and the relay unit 3, but in this method, troubles in such a case are anticipated. Will be prevented.

In the above example, the center service router 15 and the relay service router 33 are provided for each service in the center 1. However, if the line capacity and other conditions allow, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

[0116] In the example described above, all stores 5 of the same type are connected. However, even in a network within one company, the stores 5 are not the same type of store. May be. In other words, a bank accesses three types of servers as a manned store: an automatic machine server in the store, a store business server and an in-house information system server. In an unmanned store, there are almost only automatic machines. Will have access. As described above, the type of server to be accessed may be different for each store or for each type of store. As a result, some of the store routers 51 are transferred from the relay business routers 33-11, 33-21, and 33.
It may have a route for a part of −31.
As described above, the communication routes that can access the services possessed by the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified.

Further, a sub-center may be provided as shown in FIG. The configuration in the sub-center is the same as the configuration in the center 1. If the relay unit 3 is provided, a sub-center is provided in this way, and when a failure occurs in the center, the communication path 21 between the sub-center and the relay unit 3 is used, or traffic to both centers is distributed. It is possible.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and sub-centers. The same can be said for a network configuration in which the sub-center has the service 4 as long as the relay unit and the sub-center are connected.

For communication between the center and the store, or between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider. The same can be said for a device that can perform inter-communication.

As described above, according to the third embodiment of the network configuration system according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request that a traffic is made to flow with a priority order, or a traffic is made to flow with some level of guarantee for delay or delay variation.

In addition, the following problems can be solved as compared with a system in which a store is directly connected to a center or a system in which reception is simply concentrated at a center.

One reason is that in the case of direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, it is possible to connect by adding a store without stopping the center. it can.

For one thing, the addition of a store can minimize the change on the center side. The change on the center side occurs once when the number of accommodations exceeds 50 to 100 stores, depending on the number of accommodations of the network devices. It can be said that the frequency is sufficiently low.

[0124] On the other hand, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance. If there are about three types of center operations, the maintenance can be performed every time. However, when the types of operations increase, for example, when the number of types becomes about ten, the connection between the business server on the center side and the store can be individually configured. However, the number of lines to be drawn between the center and the store becomes enormous. Also, if there are about 10 types of business and about 10 storage devices are needed to store the store,
A path extending between the relay units requires 10 × 10 = 100 paths, which is difficult. In the present invention, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance.

[0125] One reason is that even if the device is changed,
It does not affect the server 11 directly. Further, the change of the device is absorbed by the relay unit 3 and confined to the relay unit as much as possible. If there is a change in both the center and the relay unit, it is necessary to make both changes at the same time, but it may not be possible to cope at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0126] For one thing, when the number of operations of the center is increased on the way, it is not necessary to set a new line path with the existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. And the relay business router 33-
If there is no problem with the traffic capacity in the route 2, the communication route is drawn out from the center business router 15-2 and, for example, a server 11-4 is provided and the center business router 15-
-2, a path for communicating with the store 5 through the communication path of the relay router 33-2 can be provided. In this way,
When the number of operations of the center increases, it is not necessary to set a new line path with the existing store.

The fourth embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 7 is a diagram showing a network configuration of a store, a relay unit and a center according to a fourth embodiment of the present invention. 1 is a center having a server, 21 is a communication path,
3 is a relay unit, 41 is a communication path, and 5 is a store where the client is located. The communication path 21 is a communication path of a line connecting the center 1 and the relay unit 3, and the communication path 4
Reference numeral 1 denotes a communication path of a line connecting the relay unit 3 and the store 5. 11 is a server in the center 1 and 13 is a center 1
Reference numeral 15 denotes a center business router in the center 1, and reference numeral 12 denotes a cable connecting the server 11 in the center 1 to the HUB 13. Reference numeral 14 denotes a cable for connecting the hub 13 in the center 1 to the center business router 15. 3
Reference numeral 3 denotes a relay business router in the relay unit 3, and reference numeral 38 denotes a business accommodation router in the relay unit 3. The business accommodation router 38 is connected to the store 5
Is a router accommodating a large number of stores 5 for each business. Here, the number of operations will be described in three types. Reference numeral 37 denotes a communication path connecting the relay business router 33 and the business accommodation router 38. Reference numeral 51 denotes a store router in the store 5, 53 denotes a HUB in the store 5, and 55
Is a terminal in the store 5, 52 is a cable connecting the store router 51 in the store 5 and the HUB 53, and 54 is a cable in the store 5 connecting the HUB 53 and the terminal 55. The center business router 15 and the relay business router 33
The illustration of the ATM switch 17 and the ATM switch 31 is omitted between them.
Illustration of the M switch and the ATM switch on the store 5 side is omitted.

FIG. 5 is a detailed view of the store 5 in FIG. 7, where 5 is a store, 51 is a store router, and 53 is a HU.
B and 52 are cables connecting the shop router 51 and the HUB 53, 55 is a terminal, and 54 is a HUB 53 and a terminal 55.
Is a cable that connects Note that the store 5 has a plurality of terminals, and 55-1, 55-2, and 55-3 indicate a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, communication path 41, business accommodation router 38, communication path 37, relay business router 33, communication path 2, center business router 15, cable 14, HUB 13, cable 1
2. The route is called the server 11. Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse. In the ATM communication, there is one physical line, and a logical line is internally connected to a fixed destination (PVC: Permanent Virt).
ual Connections) or destination selection connection (SVC: S
witched Virtual Connections).

As described above, the business accommodation router 3
Reference numeral 8 denotes a router that has a large number of stores 5 and houses the large number of stores 5. There is a limitation on the number of business accommodation routers 38 that can be accommodated. For example, here, there is a limitation that one business accommodation router 38 can accommodate up to 50 stores 5. Therefore, a plurality of business accommodation routers 38 are prepared to accommodate the store 5.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. For example, the server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store operation, and the server 11-3 is a server for information systems such as in-house mail communication. Each server 11
-1, 11-2, and 11-3 are divided into center business routers 15 respectively, and the center business routers 15-1, 15-2, and 15 are divided.
-3 is provided to provide a communication path. Also, the relay unit 3
Inside, a relay business router 33 is provided for each business, and relay business routers 33-1, 33-2, and 33-3 are provided. The relay business router 33-1 includes a center business router 15-1 and a relay business router 15-1. 33-2 has a communication path for communicating with the center business router 15-2, and the relay business router 33-3 has a communication path for communicating with the center business router 15-3. The routers exchange information with each other, and each type of server network is located ahead of the shop router 51 on a different route. The relay business router 33-1 is the business accommodation router 3
8-11 and 38-12, the relay business router 33-2 is connected to the business accommodation routers 38-21 and 38-22, and the relay business router 33-3 is connected to the business accommodation router 38-31. 38-32. The business accommodation routers 38-11 and 38-12 are provided in a plural number due to the limitation of the number of accommodations in the store 5, and the business accommodation routers 38-21 and 38-2 are provided.
2. The same applies to the service accommodation routers 38-31 and 38-32. Further, the terminal 55-1 is an automatic machine communicating with the server 11-1 corresponding to the automatic machine, the terminal 55-2 is a store business terminal communicating with the server 11-2 corresponding to the store business, and the terminal 55-3 is a terminal 55-3. It shows an information terminal such as in-house mail communication. Here, it is assumed that the types of the terminals are different. However, it is assumed that the same application is installed on the same type of terminal in all of the terminals 55-1, 55-2, and 55-3, and the application running on the terminal is different. May be. Terminals 55-1, 55-2, and 55-3 are servers 1
1-1, 11-2, and 11-3 can communicate with each other;
The communication route is sorted by the store router 51.

By doing so, for example, the line connecting the store 5 and the relay unit 3 can be divided into a plurality of logical lines by using only one physical line of the ATM technology and a PVC or SV
By connecting using the technology of C, the access route to each server is different at the end of the store 5, and the server 11-1 corresponding to the automatic machine and the server 11 corresponding to the store business are connected.
-2, Information server 11-3 such as in-house mail communication
The route to each is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 for an automatic machine, a server 11-2 for a store operation, and a server 11-3 for an information system such as an in-house mail communication server 11-1.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

ATM switch 3 of relay unit not shown
The ATM switch 17 at the center, the ATM switch 17 at the center, and the ATM switch at the store have a function of assigning priorities 1, 2, and 3, and performing processing in the order of priorities 1, 2, and 3. Where the routes of the servers 11-1, 11-2, and 11-3 are different in the route between the store terminal and the center server, the route for the server 11-1 is given priority 1 and the route for the server 11-2. Route with priority 2
And assign a priority 3 to the route for the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, it is first-in first-out, but when entering the ATM switch (not shown) of the store, the order is ranked by route and is directed to the server 11-1. , Data for the server 11-2, and data for the server 11-3 are processed in a priority order and passed to the relay unit 3. A
In the TM switch 31, similarly, the order is assigned by the route, and the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3 are prioritized and processed in this order. At 38, data for each server is processed, and again at the ATM switch 31, data for the server 11-1 and data for the server 11-2,
The data for the server 11-3 is processed in the order of priority, and the data for each server is processed by the relay business router 33.
The data is processed with priority given to the data for server 1, the data for server 11-2, and the data for server 11-3 in that order. In the center ATM switch 17 (when there is one center ATM switch), the server 11-1
For server, data for server 11-2, server 1
The data is destined to be processed in the order of data destined for 1-3, and as a result, data destined for server 11-1 and server 11-
The data for the second and the data for the server 11-3 are given priority and processed in this order. When the ATM switch of the center is in each class, it is assumed that the ATM switches are operating almost at the same time, and that the data for the server 11-1 as a whole, the data for the server 11-2, and the server 11-3
The data is destined to be processed in the order of data destined for.

[0137] In terms of bandwidth, the store-relay unit also determines that the PVC of the route for each server is as shown in the setting 2 in FIG. After receiving the data at 51, a store ATM switch (not shown) is connected to the data for the server 11-1,
The data for the server 11-2 and the data for the server 11-3 are prioritized in this order, and the higher class is preferentially assigned a bandwidth, and the space between the relay unit 3 and the center 1 is more sufficient than the store 5 and the relay unit 3. , A congestion does not occur between the relay unit 3 and the center 1, the data can be transferred between the store 5 and the relay unit 3, data for the server 11-1, data for the server 11-2, Processing is performed with priority in the order of data for the server 11-3. The setting value of each route in the setting 2 in FIG.
The value is set so that even if there is an upper class traffic at 50 kbps of priority 1 + 400 kbps of priority 2 <500 Kbps of the entire bandwidth of the line, the lowest (class 4) data flows.

Further, in the direction from the center 1 to the store 5, it is assumed that the center business has been
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order, and is passed to the relay business router 33, passed again to the ATM switch 31, and passed to the ATM switch 31 again. Data from 1, server 1
The data from the server 1-2 and the data from the server 11-3 are processed in the order of priority, passed to the service accommodating router 38, and then passed again to the ATM switch 31 to be passed to the server 11-1.
From server, data from server 11-2, server 1
Data is processed with priority in the order of data from 1-3. here,
When the line between the relay unit 3 and the store 5 is a 500 kbps line, a PVC is set up as shown in the setting 2 in FIG.
Data is passed to the store router 51 via a store ATM switch (not shown) with priority assigned to the band from the order of data from 3. The processing is performed in the order of the data received by the store router 51, and the priority processing and the band control are performed.

As described above, the priority processing in the communication path distribution portion and the integration processing when viewed from the divided side are considered as priority processing. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

Here, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path corresponding to voice communication, and traffic may flow with some level of assurance for delay or delay variation with respect to voice.

When the store 5 is newly added, if the accommodation port of the business accommodation router 38 is vacant, the connection can be made as it is, and no operation such as stopping the equipment in the center 1 is required. Further, there is no need to change the equipment of the center 1.
When the store 5 is added and the number of accommodated business accommodation routers 38 exceeds the limit, the business accommodation router 38 is added. 33-1, the business accommodation router 38-22 needs to set a communication route with the relay business router 33-2, and the business accommodation router 38-32 needs to set a communication route with the relay business router 33-3. Instead, it occurs once due to the limitation of the accommodation port of the business accommodation router 38. This occurs once per connection from 50 stores to 100 stores depending on the number of accommodation restrictions of the business accommodation router 38, and it can be said that the frequency is sufficiently low.
When the store 5 and the center 1 are directly connected, the number of services of the center 1 is P with respect to the number of stores N when the store 5 and the center 1 are directly connected. And N ×
According to this method, the number of paths extending between the center 1 and the relay unit 3 is P, which is very small. As a result, when a customer's network system is constructed by a plurality of vendors, another vendor enters between the center 1 and the relay unit 3, but in this method, troubles in such a case are anticipated. Will be prevented.

In the above example, the center service router 15 and the relay service router 33 are provided for each service in the center 1. However, if the line capacity and other conditions permit, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

In the example described above, all stores 5 of the same type are connected. However, even in a network within one company, the stores 5 are not the same type of store. May be. In other words, a bank accesses three types of servers as manned stores: an automatic machine server, a store business server, and an in-house information system server. In an unmanned store, there are almost only automatic machines. Access. As described above, the type of server to be accessed may be different for each store or for each type of store. As a result, the business accommodation routers 38-11, 38-12, and 38 are switched from some of the store routers 51.
-21, 38-22, 38-31 and 38-32 may have a route. As described above, the communication routes that can access the services possessed by the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified.

A sub-center may be provided as shown in FIG. The configuration in the sub-center is the same as the configuration in the center 1. If the relay unit 3 is provided, a sub-center is provided in this way, and when a failure occurs in the center, the communication path 21 between the sub-center and the relay unit 3 is used, or traffic to both centers is distributed. It is possible.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and a sub-center. The same can be said for a network configuration in which the sub-center has the job 4 as long as the relay unit and the sub-center are connected.

For communication between the center and the store, or between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider. The same can be said for a device that can perform inter-communication.

As described above, according to the fourth embodiment of the network configuration system according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request to flow traffic with priorities, or to flow traffic with some level of guarantee for delay or delay variation.

In addition, the following problems can be solved as compared with a system in which a store is directly connected to a center or a system in which reception is simply concentrated at a center.

One of the reasons is that, in the case of direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, it is possible to connect by adding a store without stopping the center. it can.

[0151] For one thing, by adding a store, it is possible to minimize the change on the center side. The change on the center side occurs once when the number of accommodations exceeds 50 to 100 stores, depending on the number of accommodations of the network devices. It can be said that the frequency is sufficiently low.

On the other hand, for one, the number of paths extending between the center and the relay unit is reduced, and maintenance is facilitated. If there are about three types of center operations, you can perform the maintenance every time, but the types of operations increase,
For example, when the number of types is about ten, if the connection between the business server on the center side and the store is individually configured, the number of lines drawn between the center and the store becomes enormous. Also, if there are about 10 types of business and a situation requiring about 10 accommodation devices for accommodating stores is required, the number of paths between the center and the relay unit is 10 × 10 = 100. Path is required, which is hard. In the present invention, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance.

[0153] For one, the change of the device is confined to the relay unit. If there is a change in both the center and the relay,
It is necessary to make both changes at the same time, but it may not be possible at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0154] On the other hand, when the number of operations of the center increases on the way, it is not necessary to set a new communication route with an existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. And the relay business router 33-
If there is no problem with the traffic capacity in the route 2, the communication route is drawn out from the center business router 15-2 and, for example, a server 11-4 is provided and the center business router 15-
-2, a path for communicating with the store 5 through the communication path of the relay router 33-2 can be provided. In this way,
When the number of operations of the center increases, it is not necessary to set a new communication route with the existing store.

A fifth embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 9 shows a network configuration diagram of a store and a center according to the fifth embodiment of the present invention. 1 is a center with a server, 61 is a communication path, and 5 is a store with a client. The communication path 61 is a communication path of a line connecting the center 1 and the store 5, and 11 is a server in the center 1, 13 is a HUB in the center 1, 15
Is a center business router in the center 1, and 12 is a cable connecting the server 11 in the center 1 to the HUB 13. Reference numeral 14 denotes a cable for connecting the hub 13 in the center 1 to the center business router 15. Reference numeral 19 denotes a center accommodation router in the center 1. The center accommodation router 19 is a router that has a large number of stores 5 and accommodates the large number of stores 5 for each business. Here, the number of operations will be described in three types. 51 is a store router in the store 5, 53 is a HUB in the store 5, 55 is a terminal in the store 5, 5
Reference numeral 2 denotes a cable that connects the store router 51 in the store 5 to the HUB 53, and reference numeral 54 denotes a cable in the store 5 that connects the HUB 53 to the terminal 55. In addition, about the communication path 61 between the center accommodation router 19 and the store router 51,
Illustration of the ATM switch on the center 1 side and the ATM switch on the store 5 side is omitted.

FIG. 5 is a detailed view of the inside of the store 5 in FIG. 9, where 5 is a store, 51 is a store router, and 53 is a HU.
B and 52 are cables connecting the shop router 51 and the HUB 53, 55 is a terminal, and 54 is a HUB 53 and a terminal 55.
Is a cable that connects Note that the store 5 has a plurality of terminals, and 55-1, 55-2, and 55-3 indicate a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, communication path 61, center accommodation router 19, communication path 18, center business router 15, cable 14, HU
The path is B13, cable 12, and server 11.
Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse. In the ATM communication, there is one physical line, and a logical line is internally connected to the other party by fixed connection (P
VC: Permanent Virtual Connections or destination selection connection (SVC: Switched Virtual Connections)
Can have as.

As described above, the center accommodation router 19 has a large number of stores 5 and is a router accommodating the large number of stores 5. The number of center accommodation routers 19 is limited, for example, here, there is a limitation that one center accommodation router 19 can accommodate up to 50 stores 5. Therefore, a plurality of center accommodation routers 19 are prepared to accommodate the store 5.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. For example, the server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store operation, and the server 11-3 is a server for information systems such as in-house mail communication. Each server 11
-1, 11-2, and 11-3 are divided into center business routers 15 respectively, and the center business routers 15-1, 15-2, and 15 are divided.
-3 is provided to provide a communication path. Center 1
The center accommodation router 19 is provided with the center accommodation routers 19-1, 19-2, and 19-3 for each business, and the center business router 15-1 is provided with the center accommodation router 19-1.
And the center business router 15-2 is the center accommodation router 19
-2 and the center business router 15-3 have a communication path for communicating with the center accommodation router 19-3. The routers exchange information with each other, and each type of server network is located ahead of the shop router 51 on a different route. Center accommodation router 19-1 of center 1
1, 19-12 are provided in a plurality of stores 5 due to the limitation of the number of stores in the store 5. Center accommodation routers 19-21, 19-22, 19
The same applies to -31 and 19-32. Also, the terminal 55-1
Is an automatic machine that communicates with the server 11-1 corresponding to the automatic machine, the terminal 55-2 is a store business terminal that communicates with the server 11-2 corresponding to the store business, and the terminal 55-3 is a terminal such as an in-house mail communication. An information terminal is shown. Although the types of the terminals are different here, 55-1, 55-
It is also possible that the same application is installed on the same type of terminal in both Nos. 2 and 55-3, and the application running on the terminal is different. Terminals 55-1, 55
-2, 55-3 are servers 11-1, 11-2, 11-3
Can be communicated with each other, and the communication route is distributed by the store router 51.

In this manner, for example, the line connecting the store 5 and the center 1 is divided into a plurality of logical lines by using one physical line of the ATM technology and a PVC or SV.
By connecting using the technology of C, the access route to each server is different at the end of the store 5, and the server 11-1 corresponding to the automatic machine and the server 11 corresponding to the store business are connected.
-2, Information server 11-3 such as in-house mail communication
The route to each is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 for an automatic machine, a server 11-2 for a store business, and a server 11-3 for an information system such as an in-house mail communication server 11-1.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

ATM switch 1 of center not shown
The ATM switch 7 and the store have a function of assigning priorities 1, 2, and 3, and processing in the order of priorities 1, 2, and 3. The server 11-1 on the route between the store terminal and the center server,
Where the routes 11-2 and 11-3 are different, the route for the server 11-1 is given a priority of 1, and the server 11-
The route to the server 2 is assigned a priority 2 and the route to the server 11-3 is assigned a priority 3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, it is first-in first-out, but when entering the ATM switch (not shown) of the store, the order is ranked by route and is directed to the server 11-1 , Data for the server 11-2, and data for the server 11-3 are processed in a priority order and passed to the center 1. In the center ATM switch 17 (when there is only one center ATM switch), the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3 are prioritized and processed in this order. , Server 11
−1, data for the server 11-2, and data for the server 11-3 in that order. When the ATM switch of the center is in each class, it is assumed that the ATM switches are operating almost at the same time.
Data for server 11-1 as a whole, server 11-
The data for the second and the data for the server 11-3 are given priority and processed in this order.

[0165] In terms of band, the store 5-center 1
Since the PVC of the path for each server is as shown in the setting 2 in FIG. However, data for the server 11-1, data for the server 11-2, and data for the server 11-3 are prioritized in this order, the upper class is preferentially allocated bandwidth, and transferred between the store 5 and the center 1. It is possible, and processing is performed with priority in the order of data for the server 11-1, data for the server 11-2, and data for the server 11-3. In addition, the setting value of each route in the setting 2 of FIG. 3 is such that even if there is a traffic of a higher class at 50 kbps of the priority 1 + 400 kbps of the priority 2 <500 Kbps of the entire bandwidth of the line, the data of the lowest rank (class 4) is The values are set to flow.

In the direction from the center 1 to the store 5, it is assumed that the center business is processed at the same time, and the center ATM
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority. Here, the distance between the center 1 and the store 5 is 5
At the time of the line of 00 kbps, a PVC is set up as in the setting 2 in FIG. 3, and the data from the server 11-1 and the server 11-
The data is assigned to the band preferentially in the order of the data from the server 2 and the data from the server 11-3. The processing is performed in the order of the data received by the store router 51, and the priority processing and the band control are performed.

As described above, the priority processing in the communication path distribution portion and the integration processing when viewed from the divided side can be regarded as the integration processing. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

Here, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path corresponding to voice communication, and traffic may flow with some level of assurance for delay or delay variation with respect to voice.

When the store 5 is newly added, if the accommodation port of the center accommodation router 19 is vacant, it can be connected as it is, and the center business router 15 in the center 1 can be connected.
There is no need to stop the operation. Further, there is no need to change the equipment of the center business router 15 in the center 1. When the store 5 is added and the number of accommodated center accommodation routers 19 exceeds the limit, the center accommodation router 19 is added, and the added center accommodation router 19 is the center accommodation router 19-12 and the center business router 19-12. 15-1, the center accommodation router 19-22 is the center enterprise router 15-2, and the center accommodation router 19-32 is the center enterprise router 15-3.
It is necessary to set a communication path, but this occurs once due to the limitation of the accommodating port of the center accommodating router 19, not every time a store is added. This occurs once per connection from 50 stores to 100 stores depending on the number of accommodation restrictions of the center accommodation router 19, and it can be said that the frequency is sufficiently low.

In the above example, the center service router 15 and the center accommodation router 19 are provided for each service in the center 1. However, if the line capacity and other conditions allow, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

In the example described above, all stores 5 of the same type are connected. However, even in a network within one company, the stores 5 are not the same type of store. May be. In other words, a bank accesses three types of servers as a manned store: an automatic machine server in the store, a store business server and an in-house information system server. In an unmanned store, there are almost only automatic machines. Will have access. As described above, the type of server to be accessed may be different for each store or for each type of store. Thereby, the center accommodation routers 19-1, 19-2, and 19 are transmitted from some of the store routers 51.
-3 may have a route for some of them.
As described above, the communication routes that can access the services possessed by the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and a sub-center. The same can be said for a network configuration in which the sub-center has the job 4 as long as the relay unit and the sub-center are connected.

For communication between the center and the store, or between the service providing unit and the network of the company or the organization, the relay unit is a network provided with a service to a network service provider. The same can be said for a device that can perform inter-communication.

As described above, according to the fifth embodiment of the network configuration system according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request that a traffic is made to flow with a priority order, or that traffic is made to flow with some level of guarantee for delay or delay variation.

Further, a simple direct connection to the store center,
Alternatively, the problem can be solved in the following points as compared with a system in which reception is simply concentrated at a center.

One reason is that, in the case of simple direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, the store can be added without stopping the center entirely. Can be connected.

[0178] For one thing, it is possible to minimize the change of the center by adding a store. What happens is
50 to 10 depending on the number of network devices
It exceeds the number of accommodations for every 0 stores, and it occurs once at that time. It can be said that the frequency is sufficiently low. For one thing, even if the device is changed, the server is not directly affected. In that sense, the configuration is less likely to cause problems.

[0179] One reason is that when the number of operations of the center increases in the middle, it is not necessary to set a new communication route with the existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. If there is no problem in terms of traffic capacity in the route, the communication route is drawn out from the center business router 15-2, for example, a server 11-4 is provided, and the center business router 15-2 and the center accommodation router 1 are provided.
A route for communicating with the store 5 through the communication route 9-2 can be provided. In this way, when the number of operations of the center increases on the way, it is not necessary to set a new communication route with the existing store.

The sixth embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 10 shows a network configuration diagram of a store, a relay unit, and a center according to a sixth embodiment of the present invention. 1 is a center having a server, 21 is a communication path,
3 is a relay unit, 41 is a communication path, and 5 is a store where the client is located. The communication path 21 is a communication path connecting the center 1 and the relay unit 3, and the communication path 41 is a communication path connecting the relay unit 3 and the store 5. Also, 1
1 is a server in the center 1, 13 is a HUB in the center 1,
Reference numeral 15 denotes a center business router in the center 1, and reference numeral 12 denotes a cable connecting the server 11 in the center 1 to the HUB 13. Reference numeral 14 denotes a cable for connecting the hub 13 in the center 1 to the center business router 15. Reference numeral 18 denotes a communication path connecting the center business router 15 and the center accommodation router 19. Reference numeral 36 denotes an accommodation router in the relay unit 3. The accommodation router 36 is a router that has a large number of stores 5 and accommodates the large number of stores 5 for each business. Here, the number of operations will be described in three types. Reference numeral 51 denotes a store router in the store 5, 53 denotes a HUB in the store 5, 55 denotes a terminal in the store 5, and 52 denotes a store router in the store 5 and H
A cable for connecting the UB53, 54 is a HUB53
And a cable in the store 5 connecting the terminal 55 to the terminal 55. Note that the illustration of the ATM switch on the center 1 side and the ATM switch on the relay unit 3 side is omitted in the communication path 21 between the center accommodation router 19 and the accommodation router 36.

FIG. 5 is a detailed view of the inside of the store 5 in FIG. 10, where 5 is a store, 51 is a store router, and 53 is H
UB, 52 are cables connecting the shop router 51 and the HUB 53, 55 is a terminal, 54 is the HUB 53 and the terminal 5
5 is a cable to connect. Note that the store 5 has a plurality of terminals, and FIG. 5 shows them. 55-1, 55
-2 and 55-3 indicate a plurality of types of terminals of the store 5.

The routers exchange network information with each other, select a communication path to output the information based on the input information, and send the input information to the selected communication path. From the terminal 55 of the store,
It communicates with the server 11 of the center 1 through the following route. Terminal 5
5, cable 54, HUB 53, cable 52, store router 51, communication path 41, accommodation router 36, communication path 2
1, center accommodation router 19, communication path 18, center business router 15, cable 14, HUB 13, cable 1
2. The route is called the server 11. Further, the server 11 can communicate with each terminal 55 of the store 5 by reaching the terminal 55 by following the above route in reverse. In the ATM communication, there is one physical line, and a logical line is internally connected to a fixed destination (PVC: Permanent Virt).
ual Connections) or destination selection connection (SVC: S
witched Virtual Connections).

As mentioned above, the accommodation router 36
Is a router having a large number of stores 5 and accommodating the large number of stores 5. The number of accommodation routers 36 is limited. For example, here, there is a limitation that one store router 36 can accommodate up to 50 stores 5. Therefore, a plurality of accommodation routers 36 are prepared to accommodate the store 5.

The server 11 is provided for each business in the center 1, and the center business router 15 of the center 1 is provided for each server 11. For example, the server 11-1 is a server corresponding to an automatic machine, the server 11-2 is a server corresponding to a store operation, and the server 11-3 is a server for information systems such as in-house mail communication. Each server 11
-1, 11-2, and 11-3 are divided into center business routers 15 respectively, and the center business routers 15-1, 15-2, and 15 are divided.
-3 is provided to provide a communication path. Center 1
The center accommodation router 19 is provided with the center accommodation routers 19-1, 19-2, and 19-3 for each business, and the center business router 15-1 is provided with the center accommodation router 19-1.
And the center business router 15-2 is the center accommodation router 19
-2 and the center business router 15-3 have a communication path for communicating with the center accommodation router 19-3. The routers exchange information with each other, and each type of server network is located ahead of the accommodation router 36 on a different route. The accommodation routers 36-1, 36- of the relay unit 3
2 is a plurality of stores 5 due to the limitation of the number of stores in the store 5. Also,
The terminal 55-1 is an automatic machine that communicates with the server 11-1 corresponding to the automatic machine, and the terminal 55-2 is the server 1 corresponding to the store business.
The terminal 55-3 is a store business terminal that communicates with the terminal 1-2, and the terminal 55-3 is an information terminal such as in-house mail communication. Here, it is assumed that the types of terminals are different.
It is also possible that the same application is installed on the same type of terminal for all of the terminals 1, 55-2, and 55-3, and the applications running on the terminals are different. Terminal 55
-1, 55-2, and 55-3 are servers 11-1, 11-
2, 11-3, and can communicate with each other.
Is used to sort the communication path.

In this manner, for example, the line connecting the store 5 and the relay unit 3 is divided into a plurality of logical lines by using a single physical line of the ATM technology.
By connecting using the technology of C, the access route to each server is different at the end of the store 5, and the server 11-1 corresponding to the automatic machine and the server 11 corresponding to the store business are connected.
-2, Information server 11-3 such as in-house mail communication
The route to each is different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 corresponding to an automatic machine server 11-1, a server 11-2 corresponding to a store operation, and a server 11-3 for an information system such as an in-house mail communication.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

ATM switch 31 of relay unit not shown
In the ATM switch 17 of the center, priority 1, 2, 3
And a function for processing in the order of priority 1, 2, and 3. Server 11 along the route between the terminal of the store and the server of the center
Where the routes -1, 11-2, and 11-3 are different, the route for the server 11-1 is given priority 1, the route for the server 11-2 is given priority 2, and the route for server 11-3 is given. Is given a priority of 3. In addition, between the store 5 and the relay unit 3, a PVC or SVC that uses an actual circuit logically divided is used.
In the case of a line where the technology cannot be used, priority 1, 2, and 3 are assigned to each destination network, that is, the network of the server 11-1, the network of the server 11-2, and the network of the server 11-3. In the direction from the relay unit 3 to the store 5, the network of the server 11-1 and the server 11-2 are not the destination network but the source network.
And the priorities 1, 2, and 3 are processed separately for each network of the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, the server 11-1 which is each destination network
, The network of the server 11-2, and the network of the server 11-3. The allocation of the line bandwidth is as follows:
Even if there is lower priority traffic, the store router 5
1, the data for the server 11-1 is prioritized in order of the data for the server 11-2, and the data for the server 11-3, and the higher class is preferentially assigned a bandwidth, and the server 11-1 For data, server 11-2
Is processed in the order of data destined for the server and data destined for the server 11-3. The data enters the accommodation router 36, exits from the accommodation router 36, and is ranked in the ATM switch 31 (not shown) by route. , And the data is processed in a priority order, and then passed to the center. In the center ATM switch 17 (when there is one center ATM switch), the data for the server 11-1 and the server 11
-2 and data for the server 11-3 are processed in priority order, and as a result, the server 11-1
For server, data for server 11-2, server 1
The data is processed with priority given to data for 1-3.
When the ATM switch of the center is in each class, it is assumed that the ATM switches are operating almost at the same time. They are processed in priority order.

In the direction from the center 1 to the store 5, it is assumed that the center business is processed at the same time, and the center ATM
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Is processed with priority in the order of data from the server 11-1, data from the server 11-2, and data from the server 11-3, and is passed to the accommodation router 36. Here, the server 11-
Data from the server 1, data from the server 11-2, and data from the server 11-3 are preferentially allocated to the band, and the data is passed to the store router 51. The processing is performed in the order of the data received by the store router 51, and the priority processing and the band control are performed.

As described above, the priority processing in the communication path distribution portion and the distribution section can be seen as an integrated section when viewed from the divided side. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

Here, the servers 11-1, 11-2, and 11-3 are servers for automatic machines, servers for store operations, and servers for information systems such as in-house mail communication. However, there may be another device that manages a communication path corresponding to voice communication, and traffic may flow with some level of assurance for delay or delay variation with respect to voice.

Further, when the store 5 is newly added, if the accommodation port of the accommodation router 36 is vacant, the connection can be made as it is, and no operation such as stopping the center business router 15 in the center 1 is required. Further, there is no need to change the equipment of the center business router 15 in the center 1. In addition, store 5
Is added to exceed the limit of the accommodation number of the accommodation router 36-1, the accommodation router 36-2 is added, and the added accommodation router 36-2 is added to the center accommodation router 19-.
1. Center accommodation router 19-2, center accommodation router 19
It is necessary to set a communication route with -3, but this occurs once due to the limitation of the accommodation port of the accommodation router 36-1, not every time a store is added. It is the accommodation router 36
Due to the number of accommodation restrictions of −1, one connection occurs from 50 stores to 100 stores, which is a sufficiently low frequency. Also, the number of communication routes extending between the center 1 and the relay unit 3 is as follows: if the store 5 and the center 1 are directly connected, the number of services of the center 1 is P with respect to the number of stores N According to this method, the number of routes extending between the center 1 and the relay unit 3 is (N (P). ) / A]
+1) × P, which is very small.
As a result, when a customer's network system is constructed by a plurality of vendors,
Although other vendors will be involved, this method will prevent troubles in such a case.

In the above example, the center service router 15 and the center accommodation router 19 are provided for each service in the center 1. However, if the line capacity and other conditions allow, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

[0196] In the example described above, the description has been made on the condition that all the stores 5 of the same type are connected. However, even in the network within one company, the store 5 is not the same type of store. May be. In other words, a bank accesses three types of servers as a manned store: an automatic machine server in the store, a store business server and an in-house information system server. In an unmanned store, there are almost only automatic machines. Will have access. As described above, the type of server to be accessed may be different for each store or for each type of store.

It is not necessary that all communication paths between the relay unit 3 and the center 1 have a path. It may have only a communication path. As described above, the communication routes that can access the services possessed by the center 1 may be divided, and the levels of the stores and the like that can access the provided services may be classified.

A sub-center may be provided as shown in FIG. The configuration in the sub-center is the same as the configuration in the center 1. If the relay unit 3 is provided, a sub-center is provided in this way, and when a failure occurs in the center, the communication path 21 between the sub-center and the relay unit 3 is used, or traffic to both centers is distributed. It is possible.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and a sub-center. The same can be said for a network configuration in which the sub-center has the job 4, as long as the relay unit and the sub-center are connected.

For communication between the center and the store, or between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider. The same can be said for a device that can perform inter-communication.

As described above, according to the sixth embodiment of the network configuration system according to the present invention, it is possible to set a line bandwidth guarantee for each type of server on the route to each server, or It is possible to respond to a request to flow traffic with priorities, or to flow traffic with some level of guarantee for delay or delay variation.

[0202] The problems can be solved in the following points as compared with a system in which a store is directly connected to a center, or a system in which reception is simply concentrated at a center.

One of the reasons is that, in the case of direct connection, the center cannot be stopped due to the addition of a store connection. However, in this system, it is possible to connect by adding a store without stopping the center. it can.

[0204] For one thing, the addition of a store makes it possible to minimize the change on the center side. The change on the center side occurs once when the number of accommodations exceeds 50 to 100 stores, depending on the number of accommodations of the network devices. It can be said that the frequency is sufficiently low.

[0205] On the other hand, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance. If there are about three types of center operations, you can perform the maintenance every time, but the types of operations increase,
For example, when the number of types is about ten, if the connection between the business server on the center side and the store is individually configured, the number of lines drawn between the center and the store becomes enormous. Also, if there are about 10 types of business and a situation requiring about 10 accommodation devices for accommodating stores is required, the number of paths between the center and the relay unit is 10 × 10 = 100. Path is required, which is hard. In the present invention, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance.

[0206] For one thing, even if the device is changed,
It does not affect the server 11 directly. Also, the relay unit 3 is trying to absorb the change of the equipment,
If there is a change in both relay units, it is necessary to make both changes at the same time, but it may not be possible to respond at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there.
At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0207] On the other hand, when the number of operations of the center increases in the middle, it is not necessary to set a new line path with the existing store. In this example, in the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. Among them, for example, the center business router 15-2 which is the path for the server 11-2 is provided. And the relay business router 33-
If there is no problem with the traffic capacity in the route 2, the communication route is drawn out from the center business router 15-2 and, for example, a server 11-4 is provided and the center business router 15-
-2, a path for communicating with the store 5 through the communication path of the relay router 33-2 can be provided. In this way,
When the number of operations of the center increases, it is not necessary to set a new line path with the existing store.

In the above description, the center, the relay unit, and the store have been described.
It may be a network within one company, it may be a network of organizations, or a network of a federation of companies. In addition, in the network system for providing services to each company or group, the store may be one company or group. Therefore, a network system and a network configuration method in which the word "store" is used as a network of a company or an organization are also taken into consideration.

For communication between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider, and can perform server-client communication as a whole. There may be.

[0210] Even when providing services to a plurality of companies,
As in the case of a single company, priorities of services provided to each company may be set, and specific services may be preferentially processed. Further, in a network that provides services, a network may be provided in which each enterprise is prioritized for each enterprise or a service is provided by dividing the relay business router according to service contents. For example, a communication route may be allocated to receive a maintenance or operation service by dividing the level according to the cost. In addition, regarding the service contents, the service provider that provides the network service and the service receiving side contract when using the service, how much of the service contents will be used, divide the level according to the service contents used, and communicate We perform route sorting,
Communication may be performed using QoS such as prioritization, bandwidth guarantee, delay and delay variation.

A seventh embodiment of the network configuration system according to the present invention will be described below with reference to the drawings.

FIG. 18 shows a network configuration diagram of a configuration of a company network, a relay unit, and a center according to the seventh embodiment of the present invention. 1 is a center with a server, 2 is a line, 3 is a relay unit, 4 is a line, and 5 is a company network with a client. Line 2 is
The line that connects the center 1 to the relay unit 3, and the line 4 is a line that connects the relay unit 3 to the company network 5. 11 is a server in the center 1 and 13 is a center 1
Reference numeral 15 denotes a center business router in the center 1, and reference numeral 12 denotes a cable connecting the server 11 in the center 1 to the HUB 13. Reference numeral 14 denotes a cable for connecting the hub 13 in the center 1 to the center business router 15. 1
Reference numeral 7 denotes an ATM switch in the center 1, and reference numeral 16 denotes a center business router 15 and an ATM switch 17 in the center 1.
Is a cable that connects 31 is the AT in the relay unit 3
M switch, 33 is a relay business router in the relay unit 3, 36
Is an accommodation router in the relay unit 3. The accommodation router 36
A router that has a large number of corporate networks 5 and accommodates the large number of corporate networks 5. Reference numeral 32 denotes a cable connecting the ATM switch 31 in the relay unit 3 and the relay service router 33. 34 is a relay business router 33 and A
A cable for connecting the TM switch 31;
This is a cable for connecting the TM switch 31 and the accommodation router 36. 51 is a corporate router in the corporate network 5, 53 is a HUB in the corporate network 5,
55 is a terminal in the corporate network 5, and 52 is
The corporate router 51 and the HUB 53 in the corporate network 5
Is a cable connecting the HUB 53 and the terminal 5
5 is a cable in the network 5 of the company connecting the 5.

FIG. 19 is a detailed view of the inside of the corporate network 5 shown in FIG. Reference numeral 55 denotes a terminal, and 54 denotes a cable for connecting the HUB 53 and the terminal 55. Note that the corporate network 5 has a plurality of terminals, and FIG. 19 shows this. 55-1, 55-
Reference numerals 2 and 55-3 denote a plurality of types of terminals of the corporate network 5.

Each router exchanges network information with each other, selects a communication path to output the information based on the input information, and sends the input information to the selected communication path. The terminal 55 of the corporate network 5 communicates with the server 11 of the center 1 through the following route. Terminal 55, cable 54, HUB 53, cable 52, corporate router 51, line 4, accommodation router 36,
Cable 35, ATM switch 31, cable 34, relay business router 33, cable 32, ATM switch 3
1, a line 2, an ATM switch 17, a cable 16, a center business router 15, a cable 14, a HUB 13, a cable 12, and a server 11. Server 1
From 1, the terminal 55 of the corporate network 5 can communicate with the terminal 55 by following the above route in reverse. In the ATM communication, there is one physical line, and a logical line is internally connected to the other party by fixed connection (P
VC: Permanent Virtual Connections or destination selection connection (SVC: Switched Virtual Connections)
Can have as. ("ATM Internetworking", published by Nikkei BP Publishing Center, September 2, 1995
2nd day PP13-14, P151) ("The logical communication path is called VC (virtual channel). In ATM,
A VCI (Virtual Channel Identifier) is included in the cell header assigned to each ATM cell, and multiple VCs can be set for one physical interface. "Technical Reference Material for ATM-Only Services Second Edition" Published by The Telecommunications Association of Japan, P9, January 22, 1999. As mentioned above, the accommodation router 36 has a large number of corporate networks 5, This is a router accommodating networks 5 of many companies. The accommodation router 36 has a limitation on the number of accommodations. For example, here, there is a limitation that one accommodation router 36 can accommodate a corporate network 5 up to a network of 50 enterprises. Therefore, a plurality of accommodation routers 36 are prepared to accommodate the corporate network 5.

The server 11 is provided for each business in the center 1. The center business router 15 of the center 1 is provided for each server 11, that is, the servers 11-1, 11-2, 11-3.
It is provided for each. The center business router 15 is provided separately and the center business routers 15-1, 15-2, and 15-3 are provided to provide communication paths to the servers 11-1, 11-2, and 11-3. In the relay unit 3, the relay business routers 33 are provided for each business.
3, the relay business router 33-1 is provided with the center business router 15-2, the relay business router 33-2 is provided with the center business router 15-2, and the relay business router 33-3 is provided with the center business router 15-3. Have a communication path to communicate.
The routers exchange information with each other, and each type of server network is located ahead of the accommodation router 36 on a different route. The terminal 55-1 is a terminal that communicates with the server 11-1, the terminal 55-2 is a terminal that communicates with the server 112, and the terminal 55-3 is a terminal that communicates with the server 11-1.
The terminal which communicates with 1-3 is shown. Here,
Although the types of terminals are different, 55-1, 55-2, 5
The same application may be installed on the same type of terminal in 5-3, and the application running on the terminal may be different. Terminals 55-1, 55-2,
The server 55-3 can communicate with each of the servers 11-1, 11-2, and 11-3, and the accommodation router 36 distributes communication paths.

In this way, one physical line is connected from the base 5 to the relay unit 3, and one physical line of the ATM technology is further connected to a plurality of logical lines. By connecting using the technology of PVC or SVC used separately, the route to access each server is different from the accommodation router 36 as viewed from the base,
The paths to the server 11-1, the server 11-2, and the server 11-3 are different. For this reason, a line bandwidth guarantee is set for each type of server in the route to each server, or traffic is assigned with priorities, or some guarantee is made for delay or delay fluctuation. It can respond to requests such as dividing traffic levels.

For example, a server 11-1 corresponding to an automatic machine, a server 11-2 corresponding to a base business, and a server 11-3 for information systems such as in-house mail communication are respectively provided.
Consider a case in which there is a request to flow traffic with priority given to server 1, server 11-2, and server 11-3 in this order.

The ATM switch 31 of the relay unit shown in FIG.
In the ATM switch 17 of the center, priority 1, 2, 3
And a function for processing in the order of priority 1, 2, and 3. Server 11 along the route between the terminal of the store and the server of the center
Where the routes -1, 11-2, and 11-3 are different, the route for the server 11-1 is given priority 1, the route for the server 11-2 is given priority 2, and the route for server 11-3 is given. Is given a priority of 3. In addition, between the store 5 and the relay unit 3, a PVC or SVC that uses an actual circuit logically divided is used.
In the case of a line where the technology cannot be used, priority 1, 2, and 3 are assigned to each destination network, that is, the network of the server 11-1, the network of the server 11-2, and the network of the server 11-3. In the direction from the relay unit 3 to the store 5, the network of the server 11-1 and the server 11-2 are not the destination network but the source network.
And the priorities 1, 2, and 3 are processed separately for each network of the server 11-3.

In the direction from the store 5 to the center 1, the terminal 55-
The packet sent from 1,55-2,55-3 is the store L
When entering the store router 51 from the AN and exiting from the store router 51, the server 11-1 which is each destination network
, The network of the server 11-2, and the network of the server 11-3. The allocation of the line bandwidth is as follows:
Even if there is lower priority traffic, the store router 5
1, the data for the server 11-1 is prioritized in order of the data for the server 11-2, and the data for the server 11-3, and the higher class is preferentially assigned a bandwidth, and the server 11-1 For data, server 11-2
Is processed in the order of data destined for the server and data destined for the server 11-3. The data enters the accommodation router 36, exits from the accommodation router 36, and is ranked in the ATM switch 31 according to the route. Prioritized processing is performed, and data for each server is processed by the relay business router 33. The data for the server 11-1 and the data for the server 11-2 and the data for the server 11-3 are again processed by the ATM switch 31. The data is prioritized and processed in the order of the data, and is passed to the center. Center ATM switch 17
(When there is one center ATM switch), data for the server 11-1, data for the server 11-2,
The data is processed with priority given to the data for the server 11-3. As a result, the data is processed with priority given to the data for the server 11-1, the data for the server 11-2, and the data for the server 11-3. You. The center AT
When the M switch is provided for each class, it is assumed that the switches are operating almost simultaneously, and the server 11-
The data for the first, the data for the server 11-2, and the data for the server 11-3 are processed in priority order.

Further, in the direction from the center 1 to the store 5, it is assumed that the center business has been
The switch 17 processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order of priority.
Processes the data from the server 11-1, the data from the server 11-2, and the data from the server 11-3 in order, and is passed to the relay business router 33, passed to the relay ATM switch 31 and passed to the relay ATM switch 31. Data from 1, server 1
The data is processed with priority in the order of data from 1-2 and data from the server 11-3, and is passed to the accommodation router 36. Here, data from the server 11-1, data from the server 11-2, and data from the server 11-3 are preferentially allocated to the band in this order, and the data is passed to the store router 51. The data is processed in the order of the data received by the store router 51, and
Priority processing and band control are performed.

In this way, the priority processing in the communication path distribution part and the distribution part are seen as an integrated part when viewed from the divided side. However, the priority processing is also performed when the communication paths are integrated. Can be.

Similarly, a line band required for each communication path among the line bands may be designated.

Although the server 11-1, the server 11-2, and the server 11-3 are provided here, there is another device which manages a communication path corresponding to voice communication. Alternatively, traffic may be flowed with some level of guarantee.

When the company 5 is newly added, if the accommodation port of the accommodation router 36 is vacant, it can be connected as it is, and it is not necessary to stop the equipment in the center 1. Further, there is no need to change the equipment of the center 1. When the company 5 is added and the number of accommodated routers 36 exceeds the capacity limit, the accommodated router 36 is added, and the added accommodated router 36 is connected to the relay business routers 33-1 and 33-1.
It is necessary to set communication routes with 3-2 and 33-3,
This occurs once due to the limitation of the accommodation port of the accommodation router 36, not every time an enterprise is added. This occurs once every 50 companies to 100 companies, and the frequency is sufficiently low. When the company 5 and the center 1 are directly connected, the number of services of the center 1 is P with respect to the number of companies N when the company 5 and the center 1 are directly connected. And the number N × P,
According to this method, the number of paths extending between the center 1 and the relay unit 3 is P, which is very small. As a result, when a customer's network system is constructed by a plurality of vendors, another vendor enters between the center 1 and the relay unit 3, but in this method, troubles in such a case are anticipated. Will be prevented.

In the above example, the center service router 15 and the relay service router 33 are provided for each service in the center 1. However, if the line capacity and other conditions permit, the same center service router 15-2 is used. On the other hand, the server 11-2 and the server 11-4, which are different types of servers, may be connected.

[0226] In the example described above, all the companies 5 of the same type are connected. However, a case where the companies 5 are not the same type of base may be used. The type of server to be accessed may be different for each site or for each type of site.

It is not necessary that all communication paths between the relay unit 3 and the center 1 have a path.
0, the store may be replaced with a corporate network in FIG. 21, and the accommodation router 36-1 may have a communication path only with a part of the relay business router. As described above, the communication paths that can access the services possessed by the center 1 may be divided, and the levels of the companies that can access the provided services may be classified.

When the store shown in FIG. 6 is read as a corporate network, the seventh embodiment shows a configuration in which a sub-center is provided. is there. If the relay unit 3 is provided, the sub-center is provided in this way, and when the center fails, the communication path 21 between the sub-center and the relay unit 3 is used, or traffic to both centers is distributed. Can be considered.

Although the above example is an example of a center having the same number of services, the center is divided into several such as a main center and a sub-center. The same can be said for a network configuration in which the sub-center has the job 4, as long as the relay unit and the sub-center are connected.

For communication between the service providing unit and the network of the company or organization, the relay unit is a network provided with services to the network service provider, and can perform server-client communication as a whole. The same can be said.

As described above, according to the seventh embodiment of the network configuration method according to the present invention, a line bandwidth guarantee is set for each type of server on the route to each server, or It is possible to respond to a request to flow traffic with priorities, or to flow traffic with some level of guarantee for delay or delay variation.

In addition, the following problems can be solved as compared with a system in which a company is directly connected to a center or a system in which reception is simply performed in a centralized manner.

One reason is that in direct connection, the center cannot be stopped due to the addition of a base connection. However, in this system, it is possible to perform connection by adding a base without stopping the center. it can.

[0234] For one thing, it is possible to minimize the change of the center by adding a company. The change of the center may occur once every 50 to 100 companies, depending on the number of network equipment accommodation restrictions, and occurs once at that time. It can be said that the frequency is sufficiently low.

[0235] On the other hand, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance. If there are about three types of center operations, you can perform the maintenance every time, but the types of operations increase,
For example, when the number of types is about ten, if the connection between the business server on the center side and the company is individually configured, the number of lines drawn between the center and the company becomes enormous. In addition, when there are about 10 types of business and about 10 accommodation devices are required for accommodating a company, if the situation arises, the number of paths between the center and the relay unit is 10 × 10 = 100. Path is required, which is hard. In the present invention, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance.

[0236] For one, the change of the device is confined to the relay unit. If there is a change in both the center and the relay,
It is necessary to make both changes at the same time, but it may not be possible at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, it is necessary to make changes at the same time and check afterwards, but if a situation occurs where the connection between multiple vendors does not work as expected, it takes much longer to investigate the cause than one company . For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, the configuration is less likely to cause problems.

[0237] One reason is that when the number of operations of the center increases in the middle, it is not necessary to set a new line path with a company that has already provided the service. this is,
In the above example, the communication paths for the servers 11-1, 11-2, and 11-3 are provided. In terms of traffic capacity on the route of the router 33-2,
If there is no problem, a communication path is drawn from the center business router 15-2 and, for example, a server 11-4 is provided to communicate with the enterprise 5 through the communication path of the center business router 15-2 and the relay router 33-2. A path can be provided. In this way, when the work of the center increases on the way,
It is not necessary to set up a new line path with the existing base.

The seventh embodiment is an example in which the store network is replaced with a company or organization network in the second embodiment.

Similarly, in the first, third, fourth, fifth, and sixth embodiments, assuming that the store network is replaced with a company or organization network, the problems to be solved and the effects Can be said to be the same as those described in the first, third, fourth, fifth, sixth embodiments and the seventh embodiment.

As described above, the center, the relay unit, and the store are configured, and this is an example of the inside of one company.
It may be a network within one company, it may be a network of organizations, or a network of a federation of companies. In addition, in the network system for providing services to each company or group, the store may be one company or group. Therefore, a network system and a network configuration method in which the word "store" is used as a network of a company or an organization are also taken into consideration.

For communication between the service providing unit and the network of the company or organization, the relay unit is a network provided with services to a network service provider, and can perform server-client communication as a whole. There may be. Even in the case of providing services to a plurality of companies, priority may be given to services provided to each company as in the case of one company, and specific services may be processed with priority. . Further, in a network that provides services, a network may be provided in which each enterprise is prioritized for each enterprise or a service is provided by dividing the relay business router according to service contents. For example, a communication route may be allocated to receive a maintenance or operation service by dividing the level according to the cost. In addition, about service contents,
The service provider that provides the network service and the service recipient contract to determine how much of the service content to use when using the service, classify the level according to the service content used, perform communication path allocation, and Communication may be performed using QoS such as priority, bandwidth guarantee, delay and delay variation.

[0242]

According to the present invention, the following problems can be solved as compared with a system in which a store, a company or an organization's network is directly connected to a center, or a system in which reception is simply performed in a centralized manner.

One reason is that in the case of direct connection, it may not be possible to stop business operation on the center side due to the addition of a network connection of a store, a company or an organization. Without
It can be connected to a store or a corporate or organization network.

In addition, for example, the addition of a network of stores, companies or organizations can minimize the change of the center. The number of occurrences exceeds the number of stores of a store or a company or an organization due to the number of accommodation restrictions of network devices, and occurs once at that time. It can be said that the frequency is sufficiently low.

[0245] On the other hand, the number of paths extending between the center and the relay unit is reduced to facilitate maintenance. If there are about three types of center operations, you can perform the maintenance every time, but the types of operations increase,
For example, when there are about 10 types, if the connection between the center business server and the network of a store or a company or a group is individually configured, the number of lines to be drawn between the center and the network of the store or a company or a group will be enormous. . In addition, when there are about 10 types of business and about 10 accommodation devices for accommodating a network of a store or a company or an organization appear, a path established between the center and the relay unit becomes: 10 × 10 = 10
Zero passes are required, which is very difficult. According to the present invention, the number of paths extending between the center and the relay unit can be reduced to facilitate maintenance.

[0246] For one thing, the change of the device can be confined in the relay unit. If there is a change in both the center and the relay unit, it is necessary to make both changes at the same time, but it may not be possible to cope at the same time. Also, it would be nice if one network company had a single vendor and the network change could be viewed by that company alone, but as is often the case, network changes could occur when multiple vendors' network devices were included. is there. At that time, if you make changes at the same time and then need to confirm, but the connection between multiple vendors does not work as expected,
Investigating the cause takes much longer than a single company. For this reason, it is better not to set a situation in which a change of another vendor occurs every time, and it is possible to obtain a better prospect in terms of the prior work and the confirmation work after the change and its time. In that sense, a configuration that does not easily cause a problem can be provided.

[0247] For one thing, when the number of business operations at the center increases, it is possible to avoid setting a new line path with an existing store or a company or organization network.

Although the center and the relay unit are used, it is not a name given to a geographical place. Is the same.

[0249] In addition, although a center is described as an example, it is a place where a server is located, and the same applies to a headquarters or the like. We also use the term store or network of companies or associations, which is where clients are located, and the same is true for sales departments, branches, and branches. Further, the present invention is not limited to a fixed place, and is the same even when moving or inside a moving body if used as a client function.

In the above description, the center, the relay unit, and the store have been described. This is an example of the inside of one company. Good, or a network of federations. In addition, in the network system for providing services to each company or group, the store may be one company or group. Therefore, a network system and a network configuration method in which the word "store" is used as a network of a company or an organization are also taken into consideration.

For communication between the center and the store, or between the service providing unit and the network of the company or organization, the relay unit is a network provided with a service to a network service provider. Inter-communication may be possible.

[Brief description of the drawings]

FIG. 1 shows a store, a relay unit, and a second embodiment according to the present invention.
It is a network configuration diagram of a configuration of a center.

FIG. 2 is a diagram illustrating a network configuration according to a conventional technique.

FIG. 3 is a diagram showing the line bandwidth required and the priority of business in a conventional network configuration diagram.

FIG. 4 shows a store, a relay unit, and a second embodiment according to the present invention.
It is a network configuration diagram of a configuration of a center.

FIG. 5 shows a store, a relay unit, and a second embodiment according to the present invention.
FIG. 5 is a detailed view of the inside of the store in FIG.

FIG. 6 is a network configuration diagram when a sub-center is provided in the second embodiment according to the present invention.

FIG. 7 shows a store, a relay unit, and a fourth embodiment according to the present invention.
It is a network configuration diagram of a configuration of a center.

FIG. 8 shows a store, a relay unit, and a third embodiment according to the present invention.
It is a network configuration diagram of a configuration of a center.

FIG. 9 is a network configuration diagram of a configuration of a store and a center according to a fifth embodiment of the present invention.

FIG. 10 is a network configuration diagram of a configuration of a store, a relay unit, and a center according to a sixth embodiment of the present invention.

FIG. 11 is a diagram illustrating a network configuration according to a conventional technique.

FIG. 12 is a diagram schematically summarizing features of each embodiment of the present invention.

FIG. 13 is a diagram (continuation) schematically summarizing features of each embodiment of the present invention.

FIG. 14 is a diagram (continued) schematically summarizing features of each embodiment of the present invention.

FIG. 15 is a diagram (continued) schematically summarizing features of each embodiment of the present invention.

FIG. 16 is a network configuration diagram of a configuration of a store, a relay unit, and a center according to the first embodiment of the present invention.

FIG. 17 is a network configuration diagram of a configuration of a store, a relay unit, and a center according to the first embodiment of the present invention.

FIG. 18 is a network configuration diagram of a configuration of a company, a relay unit, and a center according to a seventh embodiment of the present invention.

FIG. 19 is a diagram showing a network configuration of a company according to the seventh embodiment of the present invention.

FIG. 20 is a network configuration diagram of a configuration of a store, a relay unit, and a center according to an embodiment of the present invention.

FIG. 21 is a diagram showing a store, a relay unit, and an embodiment according to the present invention;
It is a network configuration diagram of a configuration of a center.

FIG. 22 is a diagram illustrating an example of a network configuration according to the present invention.

[Explanation of symbols]

1: center, 3: relay unit, 5: store, 11: server, 1
5: Center business router, 17: ATM switch, 18:
Communication route, 19: center accommodation router, 31: ATM switch, 33: relay business router, 36: accommodation router, 3
8: business accommodation router, 51: store router, 55: terminal

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takehisa Takizawa 890 Kashimada, Saiwai-ku, Kawasaki-shi, Kanagawa Prefecture Within the Hitachi, Ltd. Service Division (72) Inventor Tetsuya Kusuda 1-1-1, Otemachi, Chiyoda-ku, Tokyo, Japan Inside the Sanwa Bank, Ltd. (72) Inventor Akihiro Hirata 1-1-1, Otemachi, Chiyoda-ku, Tokyo Co., Ltd. Inside the Sanwa Bank, Ltd. (72) Takashi Koyanagi 1-1-1, Otemachi, Chiyoda-ku, Tokyo No. F-term in Sanwa Bank, Ltd. (reference) 5K033 AA09 CB08 DA05 DA16 DB18

Claims (14)

[Claims] 1. A network system interposed between a plurality of business servers on a center side and a terminal device on a store side, the network system comprising: at least one first communication device connected to the business server; A second communication device provided at each store and connected to the terminal device;
A communication that has a third communication device for relay interposed between the first communication device and the second communication device, and that connects each of the first communication devices and each of the third communication devices. A communication path for connecting the third communication device to the second communication device, and the first, second, and third communication devices output the information from the input information. A communication path to be selected, and transmitting the input information to the selected communication path. 2. A network system interposed between a plurality of business servers on a center side and a terminal device on a store side, the network system comprising: at least one first communication device connected to the business server; A second communication device provided at each store and connected to the terminal device;
A relay third communication device interposed between the first communication device and the second communication device and connected to the first communication device side;
And a fourth communication device for relay interposed between the first communication device and the second communication device, and each of the first communication devices is a third communication device. And a communication path connected to any one of the third communication device and the fourth communication device.
Having a communication path for connecting each of the first communication device and the first, second, third and fourth communication devices having a communication path for connecting the fourth communication device and the second communication device. Is a network system configured to select a communication path to output the information from each input information, and to transmit the input information to the selected communication path. 3. The network system according to claim 2, wherein the first communication device and the third communication device are provided as facilities on the center side. 4. The first communication device is provided as equipment on the center side, and the business server and the first communication device are provided as equipment on a sub-center side. 3. The network system according to claim 2, wherein each of the communication devices has a communication path for connecting to any one of the third communication devices. 5. A network system interposed between a plurality of business servers on a center side and a terminal device on a store side, the network system comprising: at least one first communication device connected to the business server; A second communication device provided at each store and connected to the terminal device;
At least one third communication device having a relay third communication device interposed between the first communication device and the second communication device and corresponding to each of the first communication devices And a communication path for connecting the third communication device and the second communication device. The first, second, and third communication devices are configured based on information input from A network system configured to select a communication path to output the information and to transmit the input information to the selected communication path. 6. The network system according to claim 5, wherein said first communication device and said third communication device are provided as facilities on said center side. 7. A network system interposed between a plurality of business servers on a center side and a terminal device on a store side, the network system comprising: at least one first communication device connected to the business server; A second communication device provided at each store and connected to the terminal device;
A relay third communication device interposed between the first communication device and the second communication device and connected to the first communication device side;
And a fourth communication device for relay interposed between the first communication device and the second communication device, and each of the first communication devices is a third communication device. And a communication path connecting at least one fourth communication device corresponding to each of the third communication devices, and a fourth communication device and a fourth communication device. And a communication path for connecting the first, second, third and fourth communication devices.
Wherein the communication device is configured to select a communication path from which the information is to be output, based on the input information, and to transmit the input information to the selected communication path. 8. The network system according to claim 1, wherein said network system has means for performing priority processing on data whose destination is specified by said business server and data whose transmission source is specified by said business server in accordance with the priority of said business server. The network system according to claim 1, 2, 5, or 7, wherein 9. A network system interposed between a plurality of business servers on the center side and a company / organization network, wherein the network system includes at least one first communication device connected to the business server; A second communication device for connecting the network of the company / organization to the network system; a first communication device;
A third communication device for relay interposed between the first communication device and each of the third communication devices, and a third communication device. A communication path for connecting the communication apparatus and the second communication apparatus, wherein the first, second, and third communication apparatuses each select a communication path to output the information from the input information; A network system configured to send input information to a selected communication path. 10. A network system interposed between a plurality of business servers on the center side and a company / organization network, wherein the network system includes at least one first communication device connected to the business server;
A second communication device connecting the network of the company / organization to the network system; and a second relay device interposed between the first communication device and the second communication device and connected to the first communication device side. 3 communication device, and a relay fourth communication device interposed between the first communication device and the second communication device and connected to the second communication device side, the first communication device Has a communication path connecting to any one of the third communication devices, has a communication path connecting each of the third communication devices and each of the fourth communication devices, and has a fourth communication A communication path for connecting the device and the second communication device, the first, second, and third communication devices;
And a fourth communication device configured to select a communication path to output the information from the input information, and to transmit the input information to the selected communication path. system. 11. The network system according to claim 10, wherein the first communication device and the third communication device are provided as facilities on the center side. 12. A network system interposed between a plurality of business servers on the center side and a network of a company / organization, wherein the network system includes at least one first communication device connected to the business server;
A second communication device for connecting the network of the company / organization to the network system, and a third communication device for relay interposed between the first communication device and the second communication device; A communication path for connecting at least one third communication device corresponding to each of the first communication devices; and a communication path for connecting the third communication device and the second communication device. , The first, second, and third communication devices are each configured to select a communication path to output the information from the input information, and to transmit the input information to the selected communication path. A network system, characterized in that: 13. The network system according to claim 12, wherein the first communication device and the third communication device are provided as facilities on the center side. 14. A network system interposed between a plurality of business servers on the center side and a company / organization network, the network system comprising: at least one first communication device connected to the business server;
A second communication device connecting the network of the company / organization to the network system, and a second relay device interposed between the first communication device and the second communication device and connected to the first communication device side. 3 communication device, and a relay fourth communication device interposed between the first communication device and the second communication device and connected to the second communication device side, the first communication device Has a communication path connecting to any one of the third communication devices, and has a communication path connecting at least one fourth communication device corresponding to each of the third communication devices. ,
A communication path for connecting the fourth communication device and the second communication device, wherein the first, second, third, and fourth communication devices are configured to output the information from the input information; A network system configured to select a route and send the input information to the selected communication route.