How it was detected if last ACK lost in TCP connection termination procedure?

Posted by sonali on Server Fault See other posts from Server Fault or by sonali
Published on 2012-09-21T13:54:32Z Indexed on 2012/09/21 15:41 UTC
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networking

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tcp

In TCP Connection Termination, when client enters in TIME_WAIT state means the client waits for a period of time equal to double the maximum segment life (MSL) time, to ensure the ACK it sent was received.

(I read above from a book computer networking by kurose and also given in following URL http://www.tcpipguide.com/free/t_TCPConnectionTermination-2.htm )

But how it was detected if last ACK(send by client as a response to server FIN) lost?

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