IEEE 802

'IEEE 802' refers to a family of IEEE standards dealing with local area networks and metropolitan area networks.
More specifically, the IEEE 802 standards are restricted to networks carrying variable-size packets. (By contrast, in cell-based networks data is transmitted in short, uniformly sized units called cells. Isochronous networks, where data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also out of the scope of this standard.) The number 802 was simply the next free number IEEE could assign, though "802" is sometimes associated with the date the first meeting was held - February 1980.
The services and protocols specified in IEEE 802 map to the lower two layers (Data Link and Physical) of the seven-layer OSI networking reference model. In fact, IEEE 802 splits the OSI Data Link Layer into two sub-layers named Logical Link Control (LLC) and Media Access Control, so that the layers can be listed like this:

Data link layer


LLC Sublayer


MAC Sublayer

Physical layer
The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC). The most widely used standards are for the Ethernet family, Token Ring, Wireless LAN, Bridging and Virtual Bridged LANs. An individual Working Group provides the focus for each area.
See its working groups:

IEEE 802.1 Higher layer LAN protocols

IEEE 802.2 Logical link control

IEEE 802.3 Ethernet

IEEE 802.4 Token bus (disbanded)

IEEE 802.5 Token Ring

IEEE 802.6 Metropolitan Area Networks (disbanded)

IEEE 802.7 Broadband LAN using Coaxial Cable (disbanded)

IEEE 802.8 Fiber Optic TAG (disbanded)

IEEE 802.9 Integrated Services LAN (disbanded)

IEEE 802.10 Interoperable LAN Security (disbanded)

IEEE 802.11 Wireless LAN (Wi-Fi certification)

IEEE 802.12 demand priority

★ IEEE 802.13 Cat.6 - 10Gb lan (new founded)

★ IEEE 802.14 Cable modems (disbanded)

IEEE 802.15 Wireless PAN


IEEE 802.15.1 (Bluetooth certification)


IEEE 802.15.4 (ZigBee certification)

IEEE 802.16 Broadband Wireless Access (WiMAX certification)


IEEE 802.16e (Mobile) Broadband Wireless Access

IEEE 802.17 Resilient packet ring

IEEE 802.18 Radio Regulatory TAG

IEEE 802.19 Coexistence TAG

IEEE 802.20 Mobile Broadband Wireless Access

IEEE 802.21 Media Independent Handoff

IEEE 802.22 Wireless Regional Area Network

Contents
See also
References
External links

See also



Computer network

References



★ IEEE Std 802-1990: IEEE Standards for Local and Metropolitan Networks: Overview and Architecture New York:1990

External links



802 Committee website

This article provided by Wikipedia. To edit the contents of this article, click here for original source.

psst.. try this: add to faves