<networking> (SAP) The OSI term for the component of a network address which identifies the individual application on a host which is sending or receiving a packet.
TCP/IP's equivalent term is "port".
Different SAPs distinguish between different services or applications on a host, e.g. electronic mail, FTP, HTTP.
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Nearby terms: server-side include « service « serviceability « Service Access Point » Service Advertising Protocol » Service Discovery Protocol » service-oriented architecture