Port numbers client-server paradigm Process on the local host called client. needs services from a process on the remote host, called server Both processes(client and server) have the same name For communication. we need to define Local host Local process Remote host Remote process CSIE NTUT TANANCSIE, NTUT, TAIWAN 7 Port Numbers • client-server paradigm – Process on the local host, called client, needs services from a process on the remote host, called server – Both processes (client and server) have the same name • For communication, we need to define – Local host – Local process – Remote host – Remote process