In this illustration, a desktop computer labeled "Client" and a server labeled "Server" are positioned side-by-side with a vertical line extending downward from each representing the passage of time. Their interaction begins at the topmost portion of the client's timeline, at a point labeled "Close." A blue arrow labeled "FIN" extends diagonally downward to the right and intersects with the server's timeline. From here, an arrow labeled "ACK" extends back to the client's timeline. Further down the server's timeline, at a point labeled "Close," an arrow labeled "FIN" extends diagonally downward to the left and intersects with the client's timeline. From there, an arrow labeled "ACK" extends from the client's timeline to the server's. Further down the client's timeline is a point labeled "Closed." The area between this point and the sent arrow labeled "ACK" is designated as "Timed wait."