Consider a TCP connection establishment in which a client does an active open and a server does a passive open. Moreover, the acknowledgment from the client (the third TCP segment) is lost.

这个我清楚，但是三次握手过程中，客户端没有在要求服务器端发送一个确认包确认他已经收到了第三个包啊！

youdao

Consider a TCP connection establishment in which a client does an active open and a server does a passive open. Moreover, the acknowledgment from the client (the third TCP segment) is lost.

这个我清楚，但是三次握手过程中，客户端没有在要求服务器端发送一个确认包确认他已经收到了第三个包啊！

youdao