![]() Low-Rate wireless PAN (e.g., Zigbee, WirelessHART, MiWi, etc. Wireless LAN (WLAN) & Mesh ( Wi-Fi certification) A distinguishing feature of our semantics is that it is defined as part of a larger effort to define the semantics of several diagrams of SysML, a UML profile for systems engineering. Integrated Services LAN (ISLAN or isoEthernet) We propose a semantics for Sequence Diagrams based on the COMPASS Modelling Language (CML): a formal specification language to model systems of systems. The most widely used standards are for Ethernet, Bridging and Virtual Bridged LANs, Wireless LAN, Wireless PAN, Wireless MAN, Wireless Coexistence, Media Independent Handover Services, and Wireless RAN. IEEE 802 divides the OSI data link layer into two sub-layers: logical link control (LLC) and medium access control (MAC), as follows: The services and protocols specified in IEEE 802 map to the lower two layers (data link and physical) of the seven-layer Open Systems Interconnection (OSI) networking reference model. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards projects. Isochronous signal networks, in which data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. However, not all of these working groups are currently active. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. ![]() IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LAN), personal area network (PAN), and metropolitan area networks (MAN). IEEE standards for local and metropolitan area networks The standards committee of an IEEE Standards project is responsible for providing the IEEE SA Standards Board with a complete, technically accurate draft of the standard, and this manual serves as a reference for working groups during the IEEE standards development lifecycle, particularly when drafting the standard. ![]()
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