IEEE 802
Encyclopedia
IEEE 802 refers to a family of IEEE standards dealing with local area network
Local area network
A local area network is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building...

s and metropolitan area network
Metropolitan area network
A metropolitan area network is a computer network that usually spans a city or a large campus. A MAN usually interconnects a number of local area networks using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks and the...

s.
More specifically, the IEEE 802 standards are restricted to networks carrying variable-size packets. (By contrast, in cell relay
Cell relay
In computer networking, cell relay refers to a method of statistically multiplexing small fixed-length packets, called "cells", to transport data between computers or kinds of network equipment. It is an unreliable, connection-oriented packet switched data communications protocol.Cell relay...

 networks data is transmitted in short, uniformly sized units called cells. Isochronous
Isochronous
Isochronous : From Greek iso, equal + chronos, time. It literally means regularly, or at equal time intervals. In general English language, it refers to something that occurs at a regular interval, of the same duration; as opposed to synchronous which refers to more than one thing happening at the...

 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
OSI model
The Open Systems Interconnection model is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a prescription of characterizing and standardizing the functions of a communications system in terms of abstraction layers. Similar...

 networking reference model. In fact, IEEE 802 splits the OSI Data Link Layer into two sub-layers named Logical Link Control
Logical Link Control
The logical link control data communication protocol layer is the upper sub-layer of the data link layer in the seven-layer OSI reference model...

 (LLC) and Media Access Control
Media Access Control
The media access control data communication protocol sub-layer, also known as the medium access control, is a sublayer of the data link layer specified in the seven-layer OSI model , and in the four-layer TCP/IP model...

 (MAC), so that the layers can be listed like this:
  • Data link layer
    Data link layer
    The data link layer is layer 2 of the seven-layer OSI model of computer networking. It corresponds to, or is part of the link layer of the TCP/IP reference model....

    • LLC Sublayer
      Logical Link Control
      The logical link control data communication protocol layer is the upper sub-layer of the data link layer in the seven-layer OSI reference model...

    • MAC Sublayer
      Media Access Control
      The media access control data communication protocol sub-layer, also known as the medium access control, is a sublayer of the data link layer specified in the seven-layer OSI model , and in the four-layer TCP/IP model...

  • Physical layer
    Physical layer
    The physical layer or layer 1 is the first and lowest layer in the seven-layer OSI model of computer networking. The implementation of this layer is often termed PHY....



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
Working group
A working group is an interdisciplinary collaboration of researchers working on new research activities that would be difficult to develop under traditional funding mechanisms . The lifespan of the WG can last anywhere between a few months and several years...

 provides the focus for each area.

Working groups

Name Description Note
IEEE 802.1
IEEE 802.1
IEEE 802.1 is a working group of the IEEE 802 project of the IEEE Standards Association.It is concerned with:* 802 LAN/MAN architecture* internetworking among 802 LANs, MANs and other wide area networks* 802 Link Security* 802 overall network management...

 
Bridging (networking) and Network Management
IEEE 802.2
IEEE 802.2
IEEE 802.2 is the IEEE 802 standard defining Logical Link Control , which is the upper portion of the data link layer of the OSI Model. The LLC sublayer presents a uniform interface to the user of the data link service, usually the network layer...

 
LLC
Logical Link Control
The logical link control data communication protocol layer is the upper sub-layer of the data link layer in the seven-layer OSI reference model...

inactive
IEEE 802.3
IEEE 802.3
IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group defining the physical layer and data link layer's media access control of wired Ethernet. This is generally a local area network technology with some wide area network applications...

 
Ethernet
Ethernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....

 
IEEE 802.4  Token bus
Token bus
Token bus is a network implementing the token ring protocol over a "virtual ring" on a coaxial cable. A token is passed around the network nodes and only the node possessing the token may transmit. If a node doesn't have anything to send, the token is passed on to the next node on the virtual ring...

 
disbanded
IEEE 802.5  Defines the MAC layer for a Token Ring  inactive
IEEE 802.6
IEEE 802.6
IEEE 802.6 is a standard governed by the ANSI for Metropolitan Area Networks . It is an improvement of an older standard which used the Fiber distributed data interface network structure. The FDDI-based standard failed due to its expensive implementation and lack of compatibility with current LAN...

 
MAN
Metropolitan area network
A metropolitan area network is a computer network that usually spans a city or a large campus. A MAN usually interconnects a number of local area networks using a high-capacity backbone technology, such as fiber-optical links, and provides up-link services to wide area networks and the...

s
disbanded
IEEE 802.7
IEEE 802.7
IEEE 802.7 is a sub-standard of the IEEE 802 which covers broadband local area networks. The working group did issue a recommendation in 1989, but is currently inactive and in hibernation....

 
Broadband LAN using Coaxial Cable disbanded
IEEE 802.8
IEEE 802.8
The Fiber Optic Technical Advisory Group was to create a LAN standard for fiber optic media used in token passing computer networks like FDDI. This was part of the IEEE 802 group of standards....

 
Fiber Optic TAG disbanded
IEEE 802.9  Integrated Services LAN disbanded
IEEE 802.10
IEEE 802.10
IEEE 802.10 is a former standard for security functions that could be used in both local area networks and metropolitan area networks based on IEEE 802 protocols....

Interoperable LAN Security disbanded
IEEE 802.11 a/b/g/n
IEEE 802.11
IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...

 
Wireless LAN
Wireless LAN
A wireless local area network links two or more devices using some wireless distribution method , and usually providing a connection through an access point to the wider internet. This gives users the mobility to move around within a local coverage area and still be connected to the network...

 (WLAN) & Mesh (Wi-Fi
Wi-Fi
Wi-Fi or Wifi, is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. An access point has a range of about 20...

 certification)
IEEE 802.12 100BaseVG
100BaseVG
100BaseVG is a 100 Mbit/s Ethernet standard specified to run over four pairs of category 3 UTP wires . It is also called 100VG-AnyLAN because it was defined to carry both Ethernet and token ring frame types....

 
disbanded
IEEE 802.13 unused
IEEE 802.14 Cable modem
Cable modem
A cable modem is a type of network bridge and modem that provides bi-directional data communication via radio frequency channels on a HFC and RFoG infrastructure. Cable modems are primarily used to deliver broadband Internet access in the form of cable Internet, taking advantage of the high...

s
disbanded
IEEE 802.15
IEEE 802.15
IEEE 802.15 is a working group of the Institute of Electrical and Electronics Engineers IEEE 802 standards committee which specifies wireless personal area network standards. It includes seven task groups.-Task group 1 :...

 
Wireless PAN 
IEEE 802.15.1  Bluetooth
Bluetooth
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security...

 certification
IEEE 802.15.2  IEEE 802.15
IEEE 802.15
IEEE 802.15 is a working group of the Institute of Electrical and Electronics Engineers IEEE 802 standards committee which specifies wireless personal area network standards. It includes seven task groups.-Task group 1 :...

 and IEEE 802.11
IEEE 802.11
IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...

 coexistence
IEEE 802.15.3  High-Rate wireless PAN 
IEEE 802.15.4
IEEE 802.15.4
IEEE 802.15.4 is a standard which specifies the physical layer and media access control for low-rate wireless personal area networks . It is maintained by the IEEE 802.15 working group....

 
Low-Rate wireless PAN (e.g., ZigBee
ZigBee
ZigBee is a specification for a suite of high level communication protocols using small, low-power digital radios based on an IEEE 802 standard for personal area networks. Applications include wireless light switches, electrical meters with in-home-displays, and other consumer and industrial...

, WirelessHART
WirelessHART
WirelessHART is a wireless sensor networking technology based on the Highway Addressable Remote Transducer Protocol .-Description:The protocol utilizes a time synchronized, self-organizing, and self-healing mesh architecture...

, MiWi
MiWi
MiWi and MiWi P2P are proprietary wireless protocols designed by Microchip Technology that uses small, low-power digital radios based on the IEEE 802.15.4 standard for wireless personal area networks...

, etc.)
IEEE 802.15.5  Mesh networking for WPAN
IEEE 802.16
IEEE 802.16
IEEE 802.16 is a series of Wireless Broadband standards authored by the Institute of Electrical and Electronics Engineers . The IEEE Standards Board in established a working group in 1999 to develop standards for broadband Wireless Metropolitan Area Networks...

 
Broadband Wireless Access
Broadband wireless access
Wireless Broadband refers to technology that provides high-speed wireless Internet access or computer networking access over a wide area.-The term broadband:...

 (WiMAX
WiMAX
WiMAX is a communication technology for wirelessly delivering high-speed Internet service to large geographical areas. The 2005 WiMAX revision provided bit rates up to 40 Mbit/s with the 2011 update up to 1 Gbit/s for fixed stations...

 certification)
IEEE 802.16.1 Local Multipoint Distribution Service
Local Multipoint Distribution Service
LMDS is a broadband wireless access technology originally designed for digital television transmission . It was conceived as a fixed wireless, point-to-multipoint technology for utilization in the last mile....

 
IEEE 802.17  Resilient packet ring
IEEE 802.18
IEEE 802.18
IEEE 802.18, the Radio Regulatory Technical Advisory Group , is a working group of IEEE 802, the LAN/MAN Standards Committee . The working group currently has 6 projects on standards for radio-based systems:...

 
Radio Regulatory TAG
IEEE 802.19
IEEE 802.19
IEEE 802.19 is the Wireless Coexistence Technical Advisory Group within the IEEE 802 LAN/MAN Standards Committee. The TAG deals with coexistence between unlicensed wireless networks. Many of the IEEE 802 wireless standards use unlicensed spectrum and hence need to address the issue of coexistence...

 
Coexistence TAG
IEEE 802.20
IEEE 802.20
IEEE 802.20 or Mobile Broadband Wireless Access was a specification by the standard association of the Institute of Electrical and Electronics Engineers for mobile wireless Internet access networks...

 
Mobile Broadband Wireless Access
IEEE 802.21
IEEE 802.21
802.21 is an IEEE standard published in 2008. The standard supports algorithms enabling seamless handover between networks of the same type as well as handover between different network types also called Media independent handover or vertical handover...

 
Media Independent Handoff
IEEE 802.22
IEEE 802.22
IEEE 802.22 is a standard for Wireless Regional Area Network using white spaces in the TV frequency spectrum. The development of the IEEE 802.22 WRAN standard is aimed at using cognitive radio techniques to allow sharing of geographically unused spectrum allocated to the Television Broadcast...

 
Wireless Regional Area Network
IEEE 802.23 Emergency Services Working Group New (March, 2010)

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK