title: Will TCP Server retransmit SYN+ACK if Client is not reachable?
body: <p>Assume the scenario that TCP client(<strong>A</strong>) sent <strong>SYN</strong> to the TCP Sever(<strong>B</strong>) and then TCP Client disconnected from the network, here TCP Server will be in the state <strong>SYN-RCVD</strong> how that TCP Server will know that Client is not reachable??</p>
  
  <p>will TCP Server retransmit SYN+ACK ?? </p>
  
  <p>(Aif yes, How many times Server will retransmit <strong>SYN+ACK</strong>??</p>
  
  <p>if no, How much time Server will remain in <strong>SYN-RCVD</strong> state??
  <a href="https://i.stack.imgur.com/uytKJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uytKJ.png" alt="enter image description here"></a></p>