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From Wikipedia, the free encyclopedia

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). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has twelve members, numbered 802.1 through 802.12, with a focus group of the LMSC devoted to each.

The IEEE 802 standards are restricted to 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.[1]

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:

The most widely used of these standards are for the Ethernet family, Token Ring, wireless network protocols (including Wi-Fi), and bridging protocols.[citation needed]

Working groups

Name Description Status
IEEE 802.1 Higher Layer LAN Protocols Working Group Active
IEEE 802.2 LLC Disbanded
IEEE 802.3 Ethernet Active
IEEE 802.4 Token bus Disbanded
IEEE 802.5 Token Ring MAC layer Disbanded
IEEE 802.6 MANs (DQDB) Disbanded
IEEE 802.7 Broadband LAN using Coaxial Cable Disbanded
IEEE 802.8 Fiber Optic TAG Disbanded
IEEE 802.9 Integrated Services LAN (ISLAN or isoEthernet) Disbanded
IEEE 802.10 Interoperable LAN Security Disbanded
IEEE 802.11 Wireless LAN (WLAN) & Mesh (Wi-Fi certification) Active
IEEE 802.12 100BaseVG Disbanded
IEEE 802.13 Unused[2] reserved for Fast Ethernet development[3]
IEEE 802.14 Cable modems Disbanded
IEEE 802.15 Wireless PAN Active
IEEE 802.15.1 Bluetooth certification Disbanded
IEEE 802.15.2 IEEE 802.15 and IEEE 802.11 coexistence Hibernating[4]
IEEE 802.15.3 High-Rate wireless PAN (e.g., UWB, etc.) ?
IEEE 802.15.4 Low-Rate wireless PAN (e.g., ZigBee, WirelessHART, MiWi, etc.) Active
IEEE 802.15.5 Mesh networking for WPAN ?
IEEE 802.15.6 Body area network Active
IEEE 802.15.7 Visible light communications ?
IEEE 802.16 Broadband Wireless Access (WiMAX certification) hibernating
IEEE 802.16.1 Local Multipoint Distribution Service hibernating
IEEE 802.16.2 Coexistence wireless access hibernating
IEEE 802.17 Resilient packet ring Disbanded
IEEE 802.18 Radio Regulatory TAG ?
IEEE 802.19 Wireless Coexistence Working Group ?
IEEE 802.20 Mobile Broadband Wireless Access Disbanded
IEEE 802.21 Media Independent Handoff hibernating
IEEE 802.22 Wireless Regional Area Network hibernating
IEEE 802.23 Emergency Services Working Group Disbanded
IEEE 802.24 Vertical Applications TAG ?

See also

References

  • IEEE Std 802-1990: IEEE standards for Local and Metropolitan Networks: Overview and Architecture New York:1990
  1. ^ Institute of Electrical and Electronics Engineers (September 2004). "Overview and Guide to the IEEE 802 LMSC" (PDF). Retrieved October 13, 2020.
  2. ^ "802.3". Data Communincation Standards and Protocols. EE Herald. Retrieved 2012-01-25.
  3. ^ "The fate of 100 Mbps Ethernet now definitely two-fold". FDDI News. Boston: Information Gatekeepers, Inc. 4 (7): 1–2. July 1993. ISSN 1051-1903. Retrieved 2013-11-21.
  4. ^ "IEEE 802.15 WPAN Task Group 2 (TG2)". official web site. IEEE Standards Association. May 12, 2004. Retrieved June 30, 2011.

External links

This page was last edited on 11 February 2021, at 04:23
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