Method for realizing acceleration between networks by using proxy

A technology of application proxy and network, which is applied in the network field, can solve the problems of unrealistic protocol modification and unusable existing application software, and achieve the effects of reducing network congestion, increasing file and data transmission speed, and reducing transmission consumption

Inactive Publication Date: 2007-02-28
SANGFOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is unrealistic to modify the protocol for optimization, which will directly cause a large number of existing application software to be unusable

Method used

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  • Method for realizing acceleration between networks by using proxy
  • Method for realizing acceleration between networks by using proxy
  • Method for realizing acceleration between networks by using proxy

Examples

Experimental program
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Embodiment Construction

[0027] The purpose of the present invention is to optimize the application protocol without changing the existing application software through the application protocol agent technology.

[0028] As shown in Figure 1, the device located in the local area network of client 2 and establishing a TCP connection with client 2 is called proxy server 4; the device located in the local area network of server 1 and establishing a TCP connection with the server is called proxy client 3. A network deployment can have multiple proxy servers 4 and proxy clients 3 . The communication between the proxy server 4 and the proxy client 3 is completed through the VPN gateway 5, and fast tunnels 11 and 12 are established in the wide area network 6. The agent can be deployed on the VPN gateway 5, or it can be an independent device behind the VPN gateway.

[0029] The data transmission between the proxy server 4 and the proxy client 3 can be completed through a fast transmission protocol (including ...

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PUM

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Abstract

The invention relates to a method for using proxy to accelerate the internet application. Wherein, it uses client (2), server (1), VPN gateway (5), protocol proxy server (4) and protocol client (3); the client and server via proxy server are connected to the proxy client; and the proxy server via quick tunnel (82) is connected to the proxy client. The invention comprises: building the quick tunnel connection between the proxy server and quick client; building the connection (81) between proxy server and client; building the connection (81) between proxy client and server; using the connections (81, 82) and the protocol conversation to transmit data. The invention uses quick tunnel to replace low tunnel in wide network, to reduce the handshake time when transmitting data, without modifying protocol.

Description

technical field [0001] The invention relates to network technology, in particular to a method for accelerating application data transmission between networks by performing protocol conversion through an application agent. Background technique [0002] At present, a large number of enterprises and institutions are connected to cross-regional LANs through virtual private networks (VPNs). Between inter-regional LAN networks, it is often necessary to transmit files and data through TCP-based application layer protocols such as HTTP, FTP, and My Network Places. As shown in Figure 2, client 2 directly connects to server 1, and connection channel 8 runs through their respective Gateway 5 is always unique. Due to the existence of a large number of network transmission delays and packet loss, only increasing the bandwidth cannot improve the transmission speed of traditional TCP. Especially in a network with a large delay or cross-operators, the application speed based on TCP is ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/06
Inventor 郑柏春
Owner SANGFOR TECH INC
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