Method and system to guarantee the quality of wireless link communication under thin AP mode

Abstract

The invention provides a method to achieve TCP agent under thin AP mode, which includes that a wired server sends TCP message to a wireless AP server to forward and process; the wireless AP server modifies the port number of the SYN message in the TCP message to the default port number of the TCP proxy unit; the wireless AP server extracts the SYN message and sends to the TCP proxy unit; the TCP proxy unit simulates the SYN message that the wireless client sends to the wired server to reply to the ACK message; the TCP proxy unit obtains the wireless server IP. The wireless server IP replaces the IP of the wireless IP; the wireless server MAC address is obtained, and then the wireless server MAC address replaces the MAC address of the wireless AP; in the wireless AP server, the TCP agent unit is sent to the wired server by the modified ACK packet containing the wireless client IP and the wireless client MAC address through AC server. The wireless AP quickly responds to the wired servicecan be achieved. And the reply message forwarded by the proxy can correctly encapsulate the tunnel and forward to the server.

Description

[0001] This case is a divisional application based on the patent application with the application number 201410379225.2, the application date is August 4, 2014, and the title is "A Method and System for Implementing TCP Proxy in Thin AP Mode". technical field [0002] The invention relates to the field of wireless networks, in particular to a method and system for realizing TCP proxy in thin AP mode. Background technique [0003] In the WLAN wireless network environment, due to the interference of the complex wireless environment, it is easy to cause the channel quality of the wireless link to decline, serious packet loss, and excessive packet retransmissions occur. In the TCP transmission protocol environment, due to the TCP The characteristics of the protocol's retransmission mechanism, slow start mechanism, and data transmission negotiation mechanism further highlight the above problems, which eventually lead to a serious decline in user experience in applications that are...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to solve the problem that the TCP agent cannot be used in the thin AP mode because the reply message from the AP end cannot be correctly encapsulated and tunneled to the server in the thin AP mode, and to provide a Method and system for realizing TCP proxy function

Images