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宇宙全栈

 2 years ago
source link: https://blog.csdn.net/mvplinchen888
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TCP连接概念及c++编程 (整理)

一.TCP建立连接的三次握手在TCP/IP协议中,TCP协议提供可靠的连接服务,采用三次握手建立一个连接。 第一次握手:建立连接时,客户端发送SYN包(SYN=j)到服务器,并进入SYN_SEND状态,等待服务器确认;【客户端->服务端:SYN(j)】第二次握手:服务器收到SYN包,必须确认客户的SYN(ACK=j+1),同时自己也发送一个SYN包(SYN=k),即SYN+ACK包,此

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