... provide the connection-oriented functions.As an illustration of this, in the example of the webclient-server interaction above, Ethernet and IP operatein a connectionless fashion. Therefore, ... when one of the TCP entities wantsto indicate the end of the session to the other TCPentity. The FIN bit is set to the value one or turned- on. The window size, sometimes just called the window, ... some cases,a connectionless protocol will implement one or two of the functions.One of the most important concepts in data communi-cations is how connection and connectionless protocolsare...