JPH0744478A - Logical address assigning device - Google Patents

Abstract

PURPOSE:To relieve the burden of the manager when a new computer on a network is installed by combining a logical name and a logical address and sending the result to a new information processing unit. CONSTITUTION:Logical address inquiry data reported simultaneously to a network line 5 are received by a communication equipment controller B34 of a name server and a logical address assignment device 31 generates a machine number to decide the logical address in combination with a network number of a request source. When a logical address not registered in name/address information is obtained, the logical address assignment device 31 combines a communication control header, a code representing return data, and a logical address assigned newly to generate the logical address return data. The data are returned to the computer of the request source by the communication equipment controller B34, in which the data are added to name/address information while the logical address and the logical name assigned newly are cross- referenced simultaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a logical address assigning device in a communication network system composed of a plurality of electronic computers.

[0002]

2. Description of the Related Art Conventionally, an electronic computer (hereinafter referred to as a computer) on a network has an ID (I
dentifier) and a logical address, which is an ID for the network control device in the computer to recognize each computer, must be determined as attributes.

These IDs are of a nature arbitrarily determined by the network administrator or user,
The information for associating the logical name and the logical address (hereinafter referred to as name / address information) is one of the important information that determines the network configuration.

This name / address information is centrally managed by one or a plurality of computers called name servers. This name / address information is used as follows.

When the own computer communicates with another computer, the user of the computer gives the logical name of the partner computer to the own computer. You need to know the logical address.

A computer for converting this logical name into a corresponding logical address is a name server, and one or more computers are installed in the communication network system.

Therefore, the self-computer, to which the user gave the logical name of the partner computer, sends address resolution request data containing the logical name to the name server in order to know the corresponding logical address.

Upon receiving the address resolution request data, the name server retrieves the logical name contained in the address resolution request data, searches the database by the address resolution device, and finds the logical address corresponding to this logical name. Extract.

Then, logical address reply data in which the logical name in the received address resolution request data and the logical address extracted from the database are combined is generated and returned to the computer which is the sender of the address resolution request data.

By receiving this reply data, the own computer can understand the logical address of the communication partner, and the network control device in the own computer can recognize the partner computer.

By the way, when a computer is newly installed on the network, a logical name of the computer and a logical address corresponding to the computer are determined, and the logical name and the newly determined logical address are managed by the name server. Must be registered in the name / address information which is a database in.

Conventionally, the work of determining these logical addresses and
The registration work of the logical name and the logical address is performed in the following procedure.

(1) The logical name of a newly installed computer is decided by a network administrator (hereinafter referred to as an administrator) and a computer user (hereinafter referred to as a user) in consultation with each other.

(2) The administrator determines the logical address corresponding to the logical name.

(3) The administrator operates the computer of the name server to add new logical name and logical address information to the name / address information.

(4) The user stores the logical name of the own computer and the previously determined logical address in the storage device of the newly installed computer.

Here, since the logical name is directly used by humans, it is necessary to consider the easiness of understanding and cannot be determined mechanically. However, although there are certain rules for determining the logical address, it is a work to assign a generally vacant number mechanically. Conventionally, these operations are performed manually.

[0018]

However, the above-mentioned conventional method involves the task of assigning a new logical address corresponding to a logical name each time a new computer is installed on the network, the logical name and this new assignment. Since the work of registering the logical address in the name / address information of the name server is performed manually, there is a problem that the administrator is burdened.

Further, when the administrator is absent, there is a problem that the installation of a new computer is delayed.

An object of the present invention is to provide a logical address assigning device which alleviates the burden on the administrator when newly installing a computer on a communication network system and automatically assigns a new logical address without human intervention. To do.

[0021]

In order to achieve the above object, the present invention provides a receiving means for receiving allocation request data of a logical address containing a logical name from a new information processing device issued on a network. A logical address generating means for generating a logical address corresponding to the logical name in the allocation request data received by the receiving means,
Determination means for determining whether or not the logical address generated by the logical address generation means overlaps with an existing logical address, and the logical name and the generated logical address based on the determination result of the determination means. The storage device stores the data in association with each other, and the transmission device that transmits the combination of the logical name and the generated logical address to the new information processing apparatus.

[0022]

According to the above means, the receiving means receives the logical address allocation request data including the logical name from the new information processing device issued on the network,
A corresponding logical address is generated by the logical address generation means from the built-in logical name. Then, it is judged by the judging means whether or not this newly generated logical address is an existing logical address. If it is not an existing logical address, it is stored in the storing means in association with the logical name. .

Then, the logical name and the newly generated logical address are combined and transmitted by the transmitting means to the requesting computer.

As a result, the network administrator is freed from the work of assigning a new logical address and the work of registering the name / address information.

[0025]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a system configuration diagram of an embodiment of a logical address assigning apparatus according to the present invention.

Reference numeral 1 is a computer having a built-in logical address inquiry device 2, and 3 is a logical address assigning device, which is built in the name server 4. Reference numeral 5 is a network line to which a plurality of computers are connected, and 6 is a network number.

The network number I6-1 is connected to other networks such as the network number II6-2 and the network number III6-3. In addition, each network has
A plurality of other computers 7 are connected.

FIG. 2 is a block diagram showing an embodiment of the logical address inquiry device 2 built in the computer 1.

In FIG. 2, reference numeral 21 is a logical address inquiry device for generating logical address inquiry data, 22 is a user interaction control device for the user to input a logical name, and 23 is a storage device for storing the logical name and logical address. A and 24 are communication device control devices A for simultaneously sending logical address inquiry data to the network line 5 and for sending and receiving data. A bus line 25 transmits and receives data.

FIG. 3 is a block diagram showing an embodiment of the logical address assigning device 3 built in the name server 4.

In FIG. 3, reference numeral 31 is a logical address assigning device for assigning a logical address to each computer.
2 is a logical address resolution device that retrieves the received logical name from the name / address information and extracts the corresponding logical address; 33 is a storage device B that stores the name / address information; 34 is a logical address inquiry data Or the communication device control device B that returns the inquired logical address to the requesting computer. Reference numeral 35 is a bus line for exchanging data.

FIG. 4 is a data configuration diagram showing the configuration of the logical address inquiry data, the logical address reply data, the logical address and the name / address information used in the embodiment. In FIG. 4A, reference numeral 41 denotes logical address inquiry data, which includes a communication control header 42, a code 43 indicating inquiry data, and a logical name 4.
It is composed of 4.

In FIG. 4B, reference numeral 45 is logical address reply data, which is composed of a communication control header 42, a code 46 indicating reply data, a logical name 44 inquired, and a logical address 47. It The communication control header 42 contains a network number 421 indicating the network in which the own computer is installed.

In FIG. 4C, 47 is a logical address, which is composed of a network number 421, which is a fixed value in a plurality of networks, and a machine number 471 unique to each computer.

In FIG. 4D, reference numeral 48 is the content of the name / address information, which is a logical name 44 and a logical address 47.
Are stored in association with each other.

FIG. 5 is a flow chart showing the procedure from the given logical name to the determination of the logical address.

In FIG. 5, when the computer 1 is newly installed on the network line 5, first, the user inputs the logical name 44 by the user interaction control device 22 (step 501).

Then, the logical address inquiry device 21
Is the input logical name 44 and the communication control header 4
2, and code 4 indicating that it is inquiry data
Logical address inquiry data 4 in combination with 3
1 is created (step 502), and the communication device control device A2
4 simultaneously notifies the network line 5 simultaneously (step 503) and waits for a reply from the name server 4.

The logical address inquiry data 41 simultaneously reported on the network line 5 is received by the communication device controller B34 of the name server 4 (step 504), and the logical address assigning device 31 stores the logical address inquiry data 41 Communication control header 42
The network number 421 of the request source is fetched from the machine (step 505), and the machine number 47 for determining the logical address 47 in combination with this network number 421.
1 is generated (step 506).

Every time one machine number 471 is generated, the network number 421 and the machine number 471 are generated.
It is determined whether or not the logical address 47 obtained by combining and is already registered in the name / address information 48 in the storage device B33 (step 507).

Then, the machine number 47 is generated until a logical address 47 which does not overlap with the existing logical address 47 is generated.
The generation of 1 is repeated (step 507: Yes).

In the generation stage of the machine number 471, the machine numbers 471 may be generated randomly or in ascending order or descending order.

Thus, it is not registered in the name / address information 48 (it does not overlap with the existing logical address 47).
When the logical address 47 is obtained (step 507: N
o), the logical address allocation device 31 combines the communication control header 42, the code 46 indicating that it is reply data, and the newly allocated logical address 47 to generate the logical address reply data 45 (step 508).

Then, this logical address reply data 45
Is returned to the requesting computer 1 by the communication device controller B34 (step 509).

At the same time, the newly assigned logical address 4
7 is associated with the logical name 44 and added to the name / address information 48 in the storage device B33 (step 510).

When the computer 1 waiting for a reply from the name server 4 receives the logical address reply data 45 (step 511), this logical address reply data 4
The logical name 44 in 5 and the newly assigned logical address 47 are stored in the storage device A23 (step 51).
2).

By the above procedure, the given logical name 4
4, the logical address 47 is automatically determined, and the network administrator is freed from the logical address allocation work of the newly installed computer and the registration work to the name / address information 48.

Further, the logical address resolution device 32 is only possessed by the name server 4 in the network, and is used when actual communication is performed. When a user of each computer (for example, computer 1) installed on the network communicates, he / she specifies the logical name 44 of the other computer (for example, computer 7) to the computer 1 at this time. The computer 1 first sends the logical name 44 to the name server 4 in order to know the logical address of the computer 7 from the logical name 44.

Upon receiving the logical name 44, the logical address resolution device 32 in the name server 4 searches the name / address information 48 in the storage device B33, extracts the logical address 47 corresponding to this logical name 44, Requesting computer 1
Reply to.

The requesting computer 1 can communicate with the other computer 7 by using the received logical address 47.

[0052]

As described above, according to the present invention, receiving means for receiving allocation request data of a logical address containing a logical name from the new information processing device issued on the network, and this receiving means. Logical address generating means for generating a logical address corresponding to the logical name in the allocation request data received by the logical address generating means, and determining whether the logical address generated by the logical address generating means overlaps with an existing logical address. Determination means,
A storage unit that stores the logical name and the generated logical address in association with each other based on the determination result of the determination unit, and combines the logical name and the generated logical address into the new information processing apparatus. Since the network manager is provided with a transmission means for transmitting, the network administrator registers the new logical name and the logical address in the name / address information, and the logical address allocation work that was performed every time a new computer was installed on the network. This has the effect of freeing you from work.

As a result, even if the network administrator is absent, it is possible to newly install a computer on the network, and there is an effect that a communication network system including a plurality of computers can be efficiently operated.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of a logical address allocation device according to the present invention.

FIG. 2 is a block configuration diagram of a logical address inquiry device according to an embodiment.

FIG. 3 is a block configuration diagram of a logical address assigning device of an embodiment.

FIG. 4 is a diagram showing a data structure of logical address inquiry data, logical address reply data, a logical address, and name / address information according to the embodiment.

FIG. 5 is a flowchart showing a procedure for assigning a logical address from a logical name according to the embodiment.

[Explanation of symbols]

1 ... Calculator, 2, 21 ... Logical address inquiry device,
3, 31 ... Logical address assigning device, 4 ... Name server, 5, ... Network line, 6-1, 6-2, 6-3 ... Network number, 22 ... User interaction control device, 23 ... Storage device A, 24 ... Communication device control device A, 25, 35 ... Bus line, 32 ... Logical address resolution device, 33 ... Storage device B, 34 ... Communication device control device B, 41 ... Logical address inquiry data, 42 ... Communication control header, 421 ... Network number, 43 ... Code indicating inquiry data, 44 ... Logical name, 45 ... Logical address reply data, 46 ... Code indicating reply data, 4
7 ... Logical address, 471 ... Machine number, 48 ... Name /
Address information.

Claims (1)

[Claims] 1. Corresponding to a logical name of a new information processing device in response to a request for logical address allocation from an information processing device newly installed in a communication network system including a plurality of information processing devices connected via a network. In the logical address assigning device for assigning the logical address, the receiving means for receiving the logical address assignment request data containing the logical name from the new information processing device issued on the network, and the receiving means Logical address generating means for generating a logical address corresponding to the logical name in the allocation request data, and determining means for determining whether or not the logical address generated by the logical address generating means overlaps with an existing logical address. , The logical name and the logical name based on the determination result of the determination means. A logical unit including a storage unit that stores the generated logical address in association with each other, and a transmission unit that transmits the logical name and the generated logical address in combination to the new information processing apparatus. Address assignment device.