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SAP GUI is the graphical user interface client in SAP ERP's 3-tier architecture of database, application server and client.It is software that runs on a Microsoft Windows, Apple Macintosh or Unix desktop, and allows a user to access SAP functionality in SAP applications such as SAP ERP and SAP Business Information Warehouse (BW).
Service access points are also used in IEEE 802.2 Logical Link Control in Ethernet and similar data link layer protocols. When using the OSI Network system (CONS or CLNS), the base for constructing an address for a network element is an NSAP address, similar in concept to an IP address.
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
A network service access point address (NSAP address), defined in ISO/IEC 8348, is an identifying label for a service access point (SAP) used in OSI networking. These are roughly comparable to IP addresses used in the Internet Protocol ; they can specify a piece of equipment connected to an Asynchronous Transfer Mode (ATM) network.
In distributed computing, a remote procedure call (RPC) is when a computer program causes a procedure (subroutine) to execute in a different address space (commonly on another computer on a shared computer network), which is written as if it were a normal (local) procedure call, without the programmer explicitly writing the details for the remote interaction.
In the seven-layer OSI model of computer networking, the presentation layer is layer 6 and serves as the data translator for the network. [ 2 ] [ 3 ] [ 4 ] It is sometimes called the syntax layer. [ 5 ]
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In the IEEE 802 reference model of computer networking, the logical link control (LLC) data communication protocol layer is the upper sublayer of the data link layer (layer 2) of the seven-layer OSI model. The LLC sublayer acts as an interface between the medium access control (MAC) sublayer and the network layer.