KR200273820Y1 - Network System - Google Patents

Abstract

The present invention relates to a network system, which relates to a network system including a client and a server for transmitting and receiving necessary data through a network, wherein the client is connected between the server and maintains a connection with the client, and the server is connected to the client. It is configured to include a web acceleration means for compressing the data transmitted to the real time in real time, it is possible to more easily build a network system for compressing the data transmitted and received by the web acceleration and at the same time the data processed through the web acceleration means It simplifies the data structure and enables real-time data compression and transmission through the network, thereby improving client response and server performance while reducing bandwidth usage.

Description

Network System

The present invention relates to a network system and a method of controlling the same, and more particularly, to a network system and a method of controlling the same, which allows the client and server to transmit and receive data at a higher speed and at the same time in a network system consisting of a client and a server. .

A client / server represents a role relationship between two computer programs. Clients are programs that request services from other programs, and servers are programs that respond to those requests. The client / server concept can be applied within a single computer, but has a greater meaning in network environments.

The client / server model on the network provides a convenient means of connecting programs that are distributed across different regions. In particular, the client / server model is a key concept in network computing. In other words, most of the business programs that are being created today employ a client / server model, as are TCP / IP, the main program on the Internet. In the case of the Internet, for example, a web browser is a client program that requests a web server located somewhere on the Internet to transfer a web page or file.

Often, a network system refers to a client consisting of a plurality of PCs or the like that perform a role according to the client / server model, a server built on the web to provide information to the client, and the client and the server may transmit data. It refers to a system formed in a network including a connecting means for connecting the client and the server to transmit and receive.

1 shows the configuration of the network system described above. That is, when the plurality of clients A1 to An transmitting and receiving necessary information through the network I1 and the clients A1 to An request to access and provide information to the servers B1 to Bn, Router 1 for setting the path in the network of the information provided by the server, and the load balancer for preventing the load of the server by distributing the requests of the client (A1 ~ An) requested through the router (1) (Load Balancer) 2, transaction management means (4) for managing a transaction (Transaction) generated in the process of the client (A1 ~ An) to send and receive information with the server (B1 ~ Bn), and the client ( First and second switches 3a and 3b for selecting data paths or lines so that data is correctly transmitted and received between A1 to An and the servers B1 to Bn, and for the requests of the clients A1 to An. It stores the result so that if the same request is repeated It is composed of a cache server (5) for providing the cached data to the client.

Here, L2 / L3 / L4 / L7 switches may be used as the first and second switches 4a and 4b, and the servers B1 to Bn may handle the requests of many clients or improve the response time. The network infrastructure is constructed together with the cache server 5 using the / L7 switch, and the compressed data is transmitted to the clients A1 to An using the data compression method. However, there is a problem that the compressor method does not have a great effect in the case of a picture file.

Finally, the cache server 5 is configured in accordance with the purpose, but when installed on the client (A1 ~ An) side improves the unpredictable response time of the client and reduces the load on the server. That is, since the cached data is transmitted to the client, the servers B1 to Bn guarantee the Quality of Service (QoS) to the clients A1 to An and reduce the bandwidth when transmitting and receiving data. Server down due to excessive requests).

However, if the system is configured using a plurality of switches, transaction management means, and a cache server as described above, there is a problem in that the system configuration requires specialized knowledge and costs a lot. In addition, there is a problem that the wire speed is reduced as more devices pass through during data transmission and reception.

The present invention has been made to solve the above problems of the prior art, the purpose of which is to maintain a connection with the server between the client and the server transmitting and receiving data over the network network and the data transmitted by the server to the client A network system including a web acceleration means for real-time compression and a control method thereof are provided.

1 is a diagram showing the configuration of a conventional network system;

2 is a diagram showing the configuration of a network system according to the present invention;

3 is a view showing a web acceleration means of the network system according to the present invention,

4 is a view showing that data is processed in the web acceleration means of FIG.

5 is a diagram illustrating a structure of data processed in a network system according to the present invention;

6A and 6B are diagrams illustrating a data processing structure of an existing network system and a network system according to the present invention, respectively.

<Explanation of symbols on main parts of the drawings>

10: web acceleration means 20: first network connection means

30: second network connection means 40: data compression means

41: information classification means 42: image compression module

43: text compression module

According to a feature of the network system according to the present invention for solving the above problems, a plurality of clients connected to a network network and transmitting and receiving data as needed through the network network, when the client is connected through the network network A network system comprising a plurality of servers providing information requested by the client, the network system comprising: web acceleration means for maintaining a connection with the server and compressing data transmitted by the server to the client and caching the compressed data. It is configured by.

In addition, according to a feature of the network system control method according to the present invention, the first step of the client requesting the provision of information through a network for transmitting and receiving data, and connecting the client and the server capable of providing information to the client A second step of causing the web acceleration means to generate an interrupt according to the request for providing the information of the first step; a third step of registering an event according to the interrupt generated in the second step in a queue of the web acceleration means; A fourth step in which the web acceleration means is connected to the server as the event registered in step 3 is sequentially processed; and a second step in which information transmitted from the server connected in the fourth step to the web acceleration means is transmitted to the client. It consists of 5 steps.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

In the network system according to the present invention, as shown in FIG. 2, a plurality of clients C1 to Cn outputting an information request signal to receive information required through the network N, and the clients C1 to. According to the information request signal output from Cn), a plurality of servers S1 to Sn transmitting data to the clients C1 to Cn, and the clients C1 to Cn connect to the servers S1 to Sn and receive information. When the request for providing is connected between the router (1) and the plurality of clients (C1 ~ Cn) and the plurality of servers (S1 ~ Sn) for setting the path in the network of the request and the information provided by the server And a web acceleration means (10) which manages the connection between the (C1 ~ Cn) and the server (S1 ~ Sn) and performs a data compression function so that data can be transmitted in real time through the network (N). do.

In particular, the web acceleration means 10 is a network management means that incorporates transaction management means, data optimization, and caching functions, as shown in FIG. 3, and as shown in FIG. 4. By processing the data, a large amount of data can be efficiently processed in a short time.

Referring to FIG. 3 for a more detailed configuration of the web acceleration means 10, the first network connection means 20 is connected to the plurality of clients (C1 ~ Cn), and the plurality of servers (S1 ~ Sn) Data output from a server (S1) providing information according to the information request signal output from the client (C1) connected via the second network connection means 30 and the first network connection means 20 connected to the; It consists of a data compression means 40 for compressing.

Here, the data compression means 40 is classified through the information classification means 41 for classifying the format of the data by analyzing the header included in the data output from the server (S1), and through the information classification means 41 When the classified information is image-based information, the text compression module 42 compressing the image and text information compressing the text-based information when the information classified by the information classification means 41 is text-based information. Compression module 43 is configured to include. Here, the image compression module 42 compresses the data of the image format by performing an operation according to the image compression method, and the text compression module 43 also performs the operation according to the text compressor panel to perform the data of the text format. Compress it.

In addition, the web acceleration means 10 according to the present invention further comprises a cache 11 is stored in the data compressed through the data compression means 40, the client C1 again the same information If requested, data compressed and stored in the cache 11 of the web acceleration means 10 is transmitted to the client C1.

That is, as the information request signal input through the first network connection means 20 is transmitted to the cache 11, whether there is the same information as the information requested by the information request signal among the information stored in the cache 11. If the same information is compressed and stored in the cache 11, the information stored in the cache 11 is transmitted directly to the client through the first network connection means.

Also, as shown in FIG. 4, the first and second network connection means 20 and 30 are directly connected to a client and a server, and the LAN drivers 21 and 31 generate and output an interrupt when data is output from the client and the server. ), TCP / IP modules 22 and 32 for generating an event according to an interrupt output from the LAN drivers 21 and 31 and registering them in a queue, and the TCP / IP modules 22 and 32. It consists of arithmetic modules (23, 33) for sequentially processing the events of the queue registered through.

That is, if any client C1 outputs an information request signal for requesting information provision and the information request signal is input (①) to the LAN driver 21 of the first network connection means 20, the LAN driver 21 outputs an interrupt signal for this to the TCP / IP module 22 (2). The TCP / IP module 22 registers an event in a queue as the interrupt signal is input. The calculation module 23 analyzes the header of the event registered in the queue (④) to check which signal is input through the client C1, and sequentially performs the event by performing the operation according to the check. Process.

If the client C1 transmits a signal for requesting the provision of specific information, the calculation module 23 processes the transmitted signal to determine whether the requested information is stored in the cache 11. And, if not stored in the cache 11, the web acceleration means 10 is connected to the server (S1) for providing the requested information through the second network connection means (30).

That is, the information request signal is transmitted (⑤) to the TCP / IP module 32 of the second network connection means 30 through the calculation module 33 of the second network connection means 30, and the TCP / When the IP module 32 transmits (⑥) the information request signal to the LAN driver 31 of the second network connection means 30, the LAN driver 31 transmits it to the server S1 (⑦). The server S1 and the web acceleration means 10 are connected to each other.

Then, the information provided by the server (S1) data compression means 40 through the LAN driver 31, TCP / IP module 32, the calculation module 33 of the second network connection means 30 Transmitted through the data compression means 40 or the uncompressed data passed through the cache 11, the calculation module 23 of the first network connection means 20, TCP / IP. The module 22 is transmitted to the client C1 through the LAN driver 21.

5 illustrates an interrupt system corresponding to the LAN driver, the TCP / IP module, and the operation module of the network connection means. That is, the interrupt generated according to the operation of the LAN driver is an interrupt 31a generated in the hardware layer, and the TCP / IP module corresponds to the bottom half (32a) of the interrupt system, and the operation module Corresponds to the soft interrupt 33a.

As shown in FIG. 5, the data structure of the data according to the present invention is simplified as compared to the data data structure according to the conventional kernel level data processing by simplifying the interrupt scheme occurring at the kernel level.

Figure 6a shows a conventional kernel-level data processing step, Figure 6b shows a kernel-level data processing step of the network connection means of the web acceleration means according to the present invention.

As shown in the figure, in the conventional data processing step of FIG. 6A, a hardware interrupt is executed after the LAN driver executes a hardware interrupt and the processing operation of the LAN driver is terminated. When the TCP / IP module processes the bottom half interrupt and generates a signal, the scheduler wakes up the processor and switches context. Then, as a process signal is received, a system call to receive data is called, a soft interrupt is generated, and context switching occurs in kernel mode. Accordingly, after the system call is processed in the kernel, context switching is performed in the application mode, and the process data is received.

Therefore, in the session management data structure (D1) has a five-step data structure of the file descriptor (D2)-> I-node (D3)-> socket (D4)-> sock (D5), while shown in Figure 6b As described above, the data processing step according to the present invention has a data structure of two stages of sock (D12) in session management data casting (D11). In other words, the data structure is much simpler and the data can be processed in real time.

The network system and the control method of the present invention configured as described above are related to a network system including a client and a server for transmitting and receiving necessary data through a network, and are connected between the client and the server to maintain a connection with the client. And a web acceleration means for compressing the data transmitted from the server to the client in real time, thereby enabling a simpler construction of a network system that compresses data transmitted and received with web acceleration and at the same time. By simplifying the data structure of the data processed through the means and enabling the real-time data compression and transmission through the network, it improves the response speed of the client and the performance of the server and reduces the bandwidth usage.

Claims (6)

A plurality of clients connected to a network and transmitting and receiving data as needed through the network; In the network system comprising a plurality of servers for providing the information requested by the client when the client is connected through the network, And a web acceleration means located between the client and the server and maintaining a connection with the server while compressing data transmitted by the server to the client and caching the compressed data. system. The method of claim 1, The web acceleration means may include first network connection means connected to the client when the client requests to provide the information to the server; Second network connection means connected to a server providing information requested by the client; And data compression means for classifying a format of the information transmitted from the second network connection means, compressing compressible information, and outputting the compressed information to the first network connection means. The method of claim 2, The web acceleration means further comprises a cache for storing the information compressed by the data compression means, And when the information requested by the client connected to the first network connection means is stored in the cache, the information stored in the cache is transmitted to the client through the first network connection means. The method of claim 2, The data compression means may include: information classification means for classifying information provided by the server by analyzing a header included in the information input from the server through the second network connection means; And an image compression module for compressing the image when the information classified by the information classification means is image based information. The method of claim 4, wherein And the data compressing means further comprises a text compressing module for compressing the text-based information when the information classified through the information classifying means is text-based information. The method of claim 2, The network connection means is connected to the client or the server LAN driver for generating an interrupt when the signal input from the client or server; A TCP / IP module for registering an event according to the interrupt output from the LAN driver to a queue; And a calculation module for sequentially processing the events registered through the TCP / IP module.