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Encyclopedia > IEEE 802

IEEE 802 refers to a family of IEEE standards about 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 Institute of Electrical and Electronics Engineers or IEEE (pronounced as eye-triple-ee) is an international non-profit, professional organization incorporated in the State of New York, United States. ... A local area network (LAN) is a computer network covering a small local area, like a home, office, or small group of buildings such as a college. ... Metropolitan Area Networks or MANs are large computer networks usually spanning a campus or a city. ... In telecommunication, the term isochronous has the following meanings: Of a periodic signal, pertaining to transmission in which the time interval separating any two corresponding transitions is equal to the unit interval or to a multiple of the unit interval. ...


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: The Open Systems Interconnection Reference Model (OSI Model or OSI Reference Model for short) is a layered abstract description for communications and computer network protocol design, developed as part of the Open Systems Interconnect initiative. ... Logical Link Control (LLC) is the upper portion of the data link layer of a local area network, as defined in IEEE 802. ... media access control is where people try to access a control to the media. ...

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. The data link layer is layer two of the seven-layer OSI model. ... Logical Link Control (LLC) is the upper portion of the data link layer of a local area network, as defined in IEEE 802. ... media access control is where people try to access a control to the media. ... The physical layer is level one in the seven level OSI model of computer networking. ...


See its working groups:

IEEE 802. ... IEEE 802. ... Logical Link Control (LLC) is the upper portion of the data link layer of a local area network, as defined in IEEE 802. ... // Versions of Ethernet The original Ethernet is called Experimental Ethernet today. ... It has been suggested that IEEE 802. ... IEEE 802. ... Token bus is token ring over a virtual ring on a coaxial cable. ... Token ring - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ... Token-Ring local area network (LAN) technology was developed and promoted by IBM in the early 1980s and standardised as IEEE 802. ... IEEE 802. ... Metropolitan Area Networks or MANs are large computer networks usually spanning a campus or a city. ... IEEE 802. ... The Fibre optic technical advisory group was to create a LAN standard for fibre optic media used in token passing computer networks like FDDI. This is part of the IEEE 802 group of standards. ... IEEE 802. ... IEEE 802. ... The notebook is connected to the wireless access point using a PCMCIA wireless card. ... IEEE 802. ... A cable modem is a special type of modem that is designed to modulate a data signal over cable television infrastructure. ... IEEE 802. ... A wireless personal area network (WPAN) is a personal area network (PAN) that uses radio rather than wires. ... The IEEE 802. ... Three 45 Mbit/s wireless dishes on top of 307 W. 7th Street Fort Worth TX Broadband wireless access is a technology aimed at providing wireless access to data networks, with high data rates. ... RPR Overview Resilient Packet Ring, or RPR as it is commonly know, is the IEEE 802. ... IEEE 802, the LAN/MAN Standards Committee, currently has 6 projects on standards for radio-based systems . ... IEEE 802. ... // 802. ... IEEE 802. ...

See also

A computer network is a system for communication between computers. ...

External links


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Dr. Dobb's | IEEE 802.11 Standard's Evolution | October 31, 2006 (849 words)
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