3.5 Technology Needed to Build Client- Server Systems Internet Protocol (P) Route messages from one computer to another Long messages are normally split up into small pieces Transmission ControlProtocol (TCP) Handles connections between two computers Computers can then exchange many IP messages over a connection Assures that the messages have been satisfactorily received a host has an ip address and a host name Several servers can run on the same host Each server is identified by a port number(0 to 65535) To initiate communication with a server. a client must know both the host name and the port number www.oseng.com O Lethbridge/Laganiere 2001 Chap 3: Basing Development on Reusable© Lethbridge/Laganière 2001 Chap. 3: Basing Development on Reusable Technology 22 3.5 Technology Needed to Build Client￾Server Systems Internet Protocol (IP) • Route messages from one computer to another • Long messages are normally split up into small pieces Transmission Control Protocol (TCP) • Handles connections between two computers • Computers can then exchange many IP messages over a connection • Assures that the messages have been satisfactorily received A host has an IP address and a host name • Several servers can run on the same host. • Each server is identified by a port number (0 to 65535). • To initiate communication with a server, a client must know both the host name and the port number