KR20030027352A - Appratus and method for networking of dual switching hub - Google Patents

Abstract

PURPOSE: A networking apparatus having a dual switching hub and a method thereof are provided to enhance a transmission speed of transmission data by possessing separately an internal and an external network switching hubs. CONSTITUTION: A user computer(200) transmits/receives transmission data and draws out the transmission data to the first port or the second port according to a position of a recipient address. A switching hub(210) consists of the first switching hub(212) for transmitting transmission data received from the user computer(200) to a recipient connected to an internal network and the second switching hub(214) for drawing out transmission data to an external network. A router(220) transmits transmission data provided from the second switching hub(214) to the external network.

Description

APPARATUS AND METHOD FOR NETWORKING OF DUAL SWITCHING HUB

The present invention relates to a networking device and method having a dual switching hub, and more particularly, to a networking device having a dual switching hub that improves the transmission speed of transmission data by separately providing a switching hub for an internal network and a switching hub for an external network. And to a method.

In recent years, as more companies use computers to perform business, an increasing number of companies sharing information by establishing an internal communication network, that is, a local area network, are increasing. In order to establish such a local area network, a LAN card is implemented in each computer in the company, and a cable is used to connect the LAN card and a hub. In this case, the cable uses a UTP cable having 8 lines. Typically, only 1,2,3,6 pins (RX +, RX-, TX +, TX-) are connected to each other.

Meanwhile, the hub performs a function of managing a network to which a plurality of internal computers are connected. In general, hubs have a media sharing type and a media only type. In the media sharing type, the number of computers used increases and the number of collisions increases rapidly as the amount of data increases, resulting in a sharp drop in network efficiency. Therefore, media only hubs are commonly used.

The medium-only hub is called a switching hub, and can perform a bridge function and a packet transfer function, thereby efficiently controlling traffic by dividing and managing connected computers into arbitrary groups.

In addition, the switching hub stores a MAC address therein, and converts a circuit into a circuit with low usage rate at high speed to transmit a frame entered to an arbitrary port to a desired port. Therefore, the collision of the frame can be reduced due to the above function.

Such a switching hub is connected to an external network by equipment such as ATM-LAN or router. The router allows only those with the specified network address to communicate with the specified counterpart, and enable interconnection between different networks.

1 is a schematic diagram showing a conventional network structure.

As shown in FIG. 1, a conventional network structure includes a plurality of user computers 100 and a switching hub 110 and a switching hub 110 that transmit and receive data to and from the user computer 100 through a predetermined cable. Router 120 for transmitting the output data to the external network.

When the user computer 100 intends to transmit predetermined data to a desired receiver, the user computer 100 prepares predetermined data, packetizes the data, and transmits the predetermined data to the switching hub 110 through a LAN card. In this case, a cable using two pairs of four lines of RX +, RX-, TX +, TX- is connected between the switching hub 110 and the user computer 100 to transmit and receive predetermined data.

In addition, the address of the computer to be transmitted is recorded in the packet, so that the router 120 can accurately transmit data to the recipient computer.

Meanwhile, data to be transmitted by the user computer 100 may be transmitted to a receiver registered in an internal network, or may be transmitted through an external network.

Accordingly, the switching hub 110 includes a MAC address table that stores information of addresses of all computers registered in the internal network, and checks the address of the receiver in the data received from the user computer 100, and the MAC address. Search for a table.

If the recipient address is detected in the MAC address table, the search results are transmitted to the recipient computer through the internal network.

On the other hand, if the receiver address is not detected in the MAC address table, the user computer 100 transmits data to be transmitted to the external network through the router 120 connected to the switching hub 110.

In addition, while performing the above process, a plurality of other user computers 100 transmit data as described above, and continuously perform the operation of receiving the data.

However, when the switching hub 110 transmits data to be transmitted by the user computer 100 using an internal network or an external network as described above, the switching hub 110 is connected to the plurality of user computers 100. In the case where a plurality of user computers 100 simultaneously transmit or receive predetermined data to an internal network or an external network, a problem occurs that the processing speed of the data is significantly reduced.

The present invention implements a recipient address database in which the addresses of all users registered in the internal network are stored in a LAN card of a user computer in order to effectively solve the above problems of the prior art, and a search unit checks the recipient address in the transmission data. When the receiver address is detected in the receiver address database, the transmission data is fetched through the first buffer, and when the receiver address is not detected, the transmission data is fetched through the second buffer, and the internal network is fetched. A second switching hub that processes the data to be transmitted transmits the data transmitted through the first buffer to a receiver address registered in the internal network, and the second switching hub that processes the data that is drawn out to the external network in connection with the router It is an object of the present invention to provide a networking apparatus and method having a dual switching hub for processing transmission data drawn out through a second buffer.

1 is a schematic diagram showing a conventional network structure.

2 is a schematic diagram illustrating a network structure having dual switching hubs according to an exemplary embodiment of the present invention.

Figure 3 is a schematic diagram showing a lan card structure according to an embodiment of the present invention.

4 is a flowchart illustrating a networking method using a networking device having dual switching hubs according to an exemplary embodiment of the present invention.

<Description of reference numerals appearing in the drawing>

200: user computer 212: first switching hub

214: second switching hub 220: router

300: search unit 310: recipient address database

320: switch unit 330: first buffer

340: second buffer 350: buffer monitor

A networking apparatus having a dual switching hub for achieving the above technical problem includes a LAN card for transmitting transmission data written by a user, a first port for transmitting the transmission data through an internal network, and external transmission of the transmission data. A user computer including a second port for transmitting over a network;

Receives recipient address information from the user computer, retrieves the recipient address from the MAC address table, transmits a response message according to whether the recipient address is detected, to the user computer, and transmits a message sent from the user computer to an internal network. A switching hub comprising a first switch unit for transmitting to the receiver computer by using a second transmission unit, a second switch unit for transmitting a transmission message from the user computer to the receiver computer through an external network;

It includes a router for routing the transmission data provided from the switching hub to draw to the external network.

Preferably, the user computer checks the recipient address database storing the address of the internal network user recorded in the MAC address table, the recipient address included in the transmission data, and checks the recipient address in the recipient address database. A retrieval unit for detecting, a first buffer for transmitting the transmission data through a first port when the comparison unit confirms that the recipient address is registered in an internal network, and the comparison unit receives a receiver in a recipient address database If the address is not detected, a second buffer for transmitting the transmission data through the second port, and a switch unit for providing the transmission data to the first buffer or the second buffer according to the detection result of the searching unit. It is special to include Gong.

The user computer may further include a buffer monitoring unit configured to temporarily store predetermined received data received through the first port or the second port, and to draw out the received data to the switch unit according to priority. .

A networking method having a dual switching hub for achieving the above technical problem comprises the steps of: (A) checking the recipient address in the transmission data to be transmitted, and searching the identified recipient address in the recipient address database;

(B) providing the transmission data to a first buffer if a recipient address is detected in the recipient address database, and providing the transmission data to a second buffer if the recipient address is not detected;

(C) transmitting the transmission data stored in the first buffer or the second buffer to a first switching hub or a second switching hub.

Advantageously, step (A) comprises: (A1) if said user computer does not detect a recipient address in a recipient address database included in said transmission data, transmitting said recipient address to said first switching hub;

(A2) the first switching hub retrieving the recipient address from a MAC address table;

(A3) if the recipient address is detected in the MAC address table, sending a recipient confirmation message to a user computer;

(A4) The user computer receiving the recipient confirmation message may further include storing the recipient address in a recipient address database.

In addition, (A5) if the recipient address is not detected in the MAC address table, characterized in that it further comprises the step of transmitting to the user computer unacknowledged message.

In addition, the (C) step (C1) further comprises the step of providing the transmission data stored in the first buffer to the first switching hub to be transmitted through the internal network through the first port. do.

In addition, the step (C) further comprises the step of (C2) providing the transmission data stored in the second buffer to the second switching hub to be transmitted to the external network through the second port. .

Hereinafter, a networking apparatus and method having a dual switching hub according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4.

First, referring to the characteristics of the present invention, the switching hub 210 transmits a predetermined message or data through the first switching hub 212 and the external network for transmitting the predetermined message or data to a receiver registered in the internal network. It consists of a second switching hub 214 to.

Accordingly, the user computer 200 may include a first port and a first port for connecting with the first switching hub 212 to separately transmit a message or data to each of the first switching hub 212 or the second switching hub 214. And a second port for connection with the second switching hub 214.

In this case, the first port and the second port divide one port that is conventionally used for each function and use the two ports. Thus, the first port and the second port are implemented without adding a new port.

Specifically, by using only 1,2,3,6 pins in a port having eight pins, the port was used inefficiently. However, in one embodiment of the present invention, by using all of the eight pins, 1,2,3,6 pins are used as ports for the internal network, that is, the first port, and 4,5,7,8 pins are external. It is used as a port for a network, ie, a second port, and uses a port more efficiently.

2 is a schematic diagram illustrating a network structure having a dual switching hub according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the networking device having a dual switching hub of the present invention transmits and receives transmission data, and the user computer 200 which draws the transmission data to the first port or the second port according to the location of the receiver address. And a first switching hub 212 for transmitting the transmission data provided from the user computer 200 to a receiver connected to the internal network, and a second switching hub 214 for drawing the transmission data to the external network. Switching hub 210 and the router 220 for transmitting the transmission data provided from the second switching hub 214 to the external network.

The router 220 is used for connection with an external network, and enables interconnection between different networks. In addition, the router 220 allows only a user having a designated network address to communicate with a desired receiver. Therefore, there is an advantage that traffic or authentication is easy.

The user computer 200 prepares the transmission data including the predetermined data and the recipient address and transmits the data to the receiver through the internal network or the external network. At this time, the transmission data is drawn out in packet units through the LAN card.

In this case, the LAN card checks the recipient address in the packet that is withdrawn, and checks through the recipient address database whether the recipient is registered in the internal network.

When the receiver is registered in the internal network, the transmission data is transmitted through the internal network.

On the other hand, when the receiver is not registered in the internal network, the transmission data is withdrawn to the external network through the router 220.

Figure 3 is a schematic diagram showing a LAN card structure according to an embodiment of the present invention.

As shown in Fig. 3, the LAN card structure of the present invention checks whether the address of the user registered in the internal network is stored in the recipient address database 300 and whether the user is registered in the internal network by checking the recipient address in the transmission data. The search unit 310 to determine, the switch unit 320 for selectively transmitting the transmission data to the internal network or an external network according to the determination of the search unit 310, and predetermined in the first switching hub 212 A second buffer 340 for transmitting and receiving predetermined data through the first buffer 330 and the second switching hub 214, and the first buffer 330 and the second buffer ( The buffer monitor unit 350 allows the data received through the 340 to be transmitted to the central processing unit (not shown) in any order.

When the user computer wants to transmit the transmission data to the receiver through the network, it is transmitted to the switching hub 210 through the LAN card provided in the user computer and transmitted to the receiver.

At this time, the LAN card checks the recipient address included in the transmission data, and checks whether the recipient address exists in the recipient address database 300. Here, when the recipient address is not confirmed, the recipient address is transmitted to the first switching hub 212 through the first port. The first switching hub 212 then retrieves the recipient address from the MAC address table 216. If a recipient address is detected, the recipient confirmation message is sent to the user computer 200. Then, the LAN card of the user computer 200 stores the recipient address in the recipient address database 300.

On the other hand, if the recipient address is not detected in the MAC address table 216, the receiver unacknowledged message is transmitted to the user computer 200.

The user computer 200 receiving the unacknowledged message allows the transmission data to be transmitted to the second buffer 340 in the switch unit 320 of the LAN card, so that the transmission data can be drawn out to an external network and transmitted to the receiver.

In addition, when predetermined data is simultaneously received through the internal network and the external network, the data is temporarily stored in the first buffer 330 and the second buffer 340, and the predetermined order determined by the buffer monitor 350. By sequentially transmitting to the central control unit (not shown) through the switch unit 320.

4 is a flowchart illustrating a networking method using a networking device having a dual switching hub according to an exemplary embodiment of the present invention.

As shown in Figure 4, the user provides to the LAN card so that the transmission data can be transmitted to the internal or external network (s400). In this case, the search unit 310 of the LAN card checks the recipient address included in the transmission data and searches whether the same recipient address exists in the recipient address database 300 (S410).

When the receiver address is detected in the receiver address database 300 in the search step s410, the transmission data is transmitted to the first buffer 330 (s420).

In operation S430, the transmission data stored in the first buffer 330 is provided to the first switching hub 212 through the first port. The first switching hub s430 allows the transmission data to be delivered to the receiver through the internal network (S440).

On the other hand, if the recipient address is not detected in the receiver address database 300 in the search step (s410), the transmission data is transmitted to the second buffer 340 (s450).

The second buffer 340 transmits the transmission data to the second switching hub 214 through the second port (S460).

Then, the second switching hub 214 allows the transmission data to be provided to the external network through the router 220 (s470).

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the networking apparatus and method having the dual switching hub of the present invention, a first switching hub for transmitting predetermined transmission data only to the internal network and a second switching hub for transmitting the transmission data only to the external network are separately provided. In addition, the data transmission speed is improved, and data can be processed more efficiently and reliably using the dual switching hub.

Claims (8)

A user computer including a LAN card for transmitting transmission data created by a user, a first port for transmitting the transmission data through an internal network, and a second port for transmitting the transmission data through an external network; Receives recipient address information from the user computer, retrieves the recipient address from the MAC address table, transmits a response message according to whether the recipient address is detected, to the user computer, and transmits a message sent from the user computer to an internal network A switching hub comprising a first switch unit for transmitting to the receiver computer by using a second transmission unit, a second switch unit for transmitting a transmission message from the user computer to the receiver computer through an external network; And a router configured to route transmission data provided from the switching hub and to draw it to an external network. The method of claim 1, wherein the user computer A receiver address database storing an address of an internal network user recorded in the MAC address table; A retrieval unit for checking a recipient address included in the transmission data and detecting the recipient address in the recipient address database; A first buffer for transmitting the transmission data through a first port when the comparison unit determines that the receiver address is registered in an internal network; A second buffer for transmitting the transmission data through a second port when the comparator fails to detect a recipient address in a recipient address database; And a switch unit configured to provide the transmission data to the first buffer or the second buffer according to the detection result of the search unit. 3. The system of claim 2, wherein the user computer And a buffer monitoring unit configured to temporarily store predetermined received data received through the first port or the second port, and to draw the received data to the switch unit according to priority. Device. (A) confirming the recipient address in the transmission data to be transmitted and retrieving the confirmed recipient address from the recipient address database; (B) providing the transmission data to a first buffer if a recipient address is detected in the recipient address database, and providing the transmission data to a second buffer if the recipient address is not detected; (C) transmitting the transmission data stored in the first buffer or the second buffer to a first switching hub or a second switching hub. The method of claim 4, wherein step (A) (A1) if the user computer does not detect a recipient address in the recipient address database included in the transmission data, transmitting the recipient address to the first switching hub; (A2) the first switching hub retrieving the recipient address from a MAC address table; (A3) if the recipient address is detected in the MAC address table, sending a recipient confirmation message to a user computer; (A4) The user computer receiving the recipient confirmation message further comprises storing the recipient address in a recipient address database. The method of claim 5, (A5) if the recipient address is not detected in the MAC address table, sending the unacknowledged message to the user computer, the networking method having a dual switching hub. The method of claim 4, wherein step (C) (C1) further comprising the step of providing the transmission data stored in the first buffer to a first switching hub for transmission over an internal network via a first port. . The method of claim 4, wherein step (C) (C2) further comprising providing the transmission data stored in the second buffer to a second switching hub for transmission to an external network through a second port.