TCP transport protocol proxy method

Abstract

The invention relates to a TCP transport protocol proxy method. According to the method, a proxy client is arranged at a client and a proxy server is arranged at a server side. The proxy client sendsa handshake message to the server on behalf of the client and receives a TCP packet sent by the server; the proxy server receives the handshake message from the client on behalf of the server and forwards the TCP packet of the server; the proxy client and the proxy server that represent the client and the server respectively establish and maintain TCP connection via an intermediate communication network; and when the proxy client and the proxy server carry out data forwarding by using different communication networks, the message needs to be processed properly to adapt to transmission protocols of different networks. Therefore, a communication breakpoint problem caused by the unsound construction of the inter-region communication network is solved; the data processing and transmission modes are enriched while the normal operation of the system is kept; and the transmission needs under various conditions are met.

Description

technical field [0001] The invention relates to the field of communication network and data transmission, in particular to a TCP transmission protocol agent method. Background technique [0002] Due to the inability to achieve full network coverage in remote areas such as mountainous grasslands, it has brought difficulties to information collection and data communication; or due to communication distance and other issues, the transmission delay is so long that under the existing TCP timeout management strategy Frequent overtime reconnection; or the need to process message content due to confidentiality, monitoring, etc. need to improve the original TCP transmission mode, and the TCP transmission protocol agent needs to be used when making improvements. [0003] TCP proxy is a common method for content-based network services. Its model is to add a proxy between the original intercommunicating TCP sender and destination, so that the two ends that originally interacted directly...

AI Technical Summary

Problems solved by technology

[0002] Due to the inability to achieve full network coverage in remote areas such as mountainous grasslands, it has brought difficulties to information collection and data communication; or due to communication distance and other issues, the transmission delay is so long that under the existing TCP timeout management strategy Frequent overtime reconnection; or the need to process message content due to confidentiality, monitoring, etc. need to improve the original TCP transmission mode, and the TCP transmission protocol agent needs to be used when making improvements

[0003] TCP proxy is a common method for content-based network services. Its model is to add a proxy between the original intercommunicating TCP sender and destination, so that the two ends that originally interacted directly interact with the proxy respectively. The existing TCP proxy Most of the research on the method is realized by using socket proxy, acting as two terminals, all data messages are transferred through the proxy program, and the content of the message can be processed, but the transmission mode is single, and it needs to be carried out under the same network, portability And the flexibility is poor, and it cannot solve the problem of timeout management in the communication environment with large communication delay

Images