Английская Википедия:IEEE 802

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IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LANs), personal area networks (PANs), and metropolitan area networks (MANs). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. 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. However, not all of these working groups are currently active.

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. 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 number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards projects.

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. IEEE 802 divides the OSI data link layer into two sub-layers: logical link control (LLC) and medium access control (MAC), as follows:

• Data link layer
  • LLC sublayer
  • MAC sublayer
• Physical layer

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.

Working groups

Name	Description	Status
IEEE 802.1	Higher Layer LAN Protocols Working Group	Шаблон:Active
IEEE 802.2	LLC	Шаблон:Terminated
IEEE 802.3	Ethernet	Шаблон:Active
IEEE 802.4	Token bus	Шаблон:Terminated
IEEE 802.5	Token Ring MAC layer	Шаблон:Terminated
IEEE 802.6	MANs (DQDB)	Шаблон:Terminated
IEEE 802.7	Broadband LAN using Coaxial Cable	Шаблон:Terminated
IEEE 802.8	Fiber Optic TAG	Шаблон:Terminated
IEEE 802.9	Integrated Services LAN (ISLAN or isoEthernet)	Шаблон:Terminated
IEEE 802.10	Interoperable LAN Security	Шаблон:Terminated
IEEE 802.11	Wireless LAN (WLAN) & Mesh (Wi-Fi certification)	Шаблон:Active
IEEE 802.12	100BaseVG	Шаблон:Terminated
IEEE 802.13	Unused	Шаблон:N/a
IEEE 802.14	Cable modems	Шаблон:Terminated
IEEE 802.15	Wireless PAN	Шаблон:Active
IEEE 802.15.1	Bluetooth certification	Шаблон:Terminated
IEEE 802.15.2	IEEE 802.15 and IEEE 802.11 coexistence	Шаблон:N/a
IEEE 802.15.3	High-Rate wireless PAN (e.g., UWB, etc.)	Шаблон:Dunno
IEEE 802.15.4	Low-Rate wireless PAN (e.g., Zigbee, WirelessHART, MiWi, etc.)	Шаблон:Active
IEEE 802.15.5	Mesh networking for WPAN	Шаблон:Dunno
IEEE 802.15.6	Body area network	Шаблон:Active
IEEE 802.15.7	Visible light communications	Шаблон:Dunno
IEEE 802.16	Broadband Wireless Access (WiMAX certification)	Шаблон:N/a
IEEE 802.16.1	Local Multipoint Distribution Service	Шаблон:N/a
IEEE 802.16.2	Coexistence wireless access	Шаблон:N/a
IEEE 802.17	Resilient packet ring	Шаблон:Terminated
IEEE 802.18	Radio Regulatory TAG	Шаблон:Active
IEEE 802.19	Wireless Coexistence Working Group	Шаблон:Dunno
IEEE 802.20	Mobile Broadband Wireless Access	Шаблон:Terminated
IEEE 802.21	Media Independent Handoff	Шаблон:N/a
IEEE 802.22	Wireless Regional Area Network	Шаблон:N/a
IEEE 802.23	Emergency Services Working Group	Шаблон:Terminated
IEEE 802.24	Vertical Applications TAG	Шаблон:Dunno

References

• IEEE Std 802-1990: IEEE standards for Local and Metropolitan Networks: Overview and Architecture New York:1990

External links

• 802 Committee website
• IEEE 802 Standards available via IEEE Get Program
• Entrepreneurial Capitalism and Innovation: A History of Computer Communications 1968-1988 Шаблон:Webarchive