// SUT is a client, i.e. it opens a socket and connects to the peer.
// Afterwards the peer closes the connection.

// Create a socket and set it to non-blocking.
0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3

// Establish connection
0.100 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
0.100 > S 0:0(0) <mss 1460, nop, wscale 6, nop, nop, sackOK>
0.200 < S. 0:0(0) ack 1 win 5792 <...>
0.200 > . 1:1(0) ack 1 <...>


// Server closes the connection
0.300 < F. 1:1(0) ack 1 win 260

// Respond with ACK
+0 > . 1:1(0) ack 2

// Client closes the connection
0.320 close(4) = 0
0.320 > F. 1:1(0) ack 2
+0 < . 2:2(0) ack 2