IEEE 802.3

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IEEE 802.3 is a working group and a collection of standards defining the physical layer and data link layer's media access control (MAC) of wired Ethernet. The standards are produced by the working group of the Institute of Electrical and Electronics Engineers (IEEE). This set of standards generally applies to local area networks (LANs) and has some wide area network (WAN) applications. Physical connections are made between network nodes and, usually, various network infrastructure devices (hubs, switches, routers) by various types of copper cables or optical fiber.

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802.3 standards support the IEEE 802.1 network architecture.

802.3 also defines a LAN access method using carrier-sense multiple access with collision detection (CSMA/CD).

Communication standards

The IEEE 802 Local and Metropolitan Area Networks Committee was formed in 1980 to create a single standard for the lower layers of a local or metropolitan area network. At the time, there were three approaches to local area networking: IBM’s token ring, the DEC-Intel-Xerox Ethernet, and the token bus. Because the group could not agree on a single approach, three working groups were formed, 802.3 for Ethernet (called CSMA/CD), 802.4 for token bus, and 802.5 for token ring. An Ethernet network had already been implemented at Xerox Parc to connect Alto computers to a laser printer in 1973. In 1980, Digital, Intel, and Xerox published a “standard” called the DIX standard. [1] In 1982, they published a second version. [2] The first IEEE Standard for the CSMA/CD approach was based on the DIX standard. [3] The original IEEE standard for Ethernet was named "IEEE Standards for Local Area Networks: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications” and subsequent standards were named similarly, until 2012 when it became simply “Standard for Ethernet”. This was because of sensitivities around using a commercial product as the basis for a standard. [4]

    See also

    References

    1. ↑ Digital Equipment Corporation; Intel Corporation; Xerox Corporation (July 1981). "The ethernet: a local area network: data link layer and physical layer specifications" . ACM SIGCOMM Computer Communication Review. 11 (3): 20–66. doi:10.1145/1015591.1015594.
    2. ↑ Digital Equipment Corporation; Intel Corporation; Xerox Corporation (November 1982). The Ethernet, A Local Area Network. Data Link Layer and Physical Layer Specifications, Version 2.0 (PDF) (Report). Xerox Corporation. Archived (PDF) from the original on December 15, 2011. Retrieved December 10, 2011.
    3. ↑ "Milestones:Origin of the IEEE 802 Family of Networking Standards, 1980-1999". Engineering and Technology History Wiki. May 20, 2024. Retrieved Jan 19, 2026.
    4. ↑ Charles E. Spurgeon (2000). Ethernet: The Definitive Guide . O'Reilly. ISBN   978-1-56592-660-8.
    5. ↑ "IEEE P802.3bp 1000BASE-T1 PHY Task Force". 2016-07-29. Retrieved 2016-10-02.
    6. ↑ "Approval of IEEE Std 802.3by-2016, IEEE Std 802.3bq-2016, IEEE Std 802.3bp-2016 and IEEE Std 802.3br-2016". IEEE. 2016-06-30..
    7. ↑ "IEEE P802.3bw 100BASE-T1 Task Force". 2015-10-27. The work of the IEEE P802.3bw 100BASE-T1 Task Force completed with the approval of IEEE Std 802.3bw-2015 by the IEEE-SA Standards Board on 27 October 2015.
    8. ↑ "[STDS-802-3-25G] IEEE Std 802.3by-2016 Standard Approved!". 2016-06-30.
    9. ↑ P802.3by 25 Gbit/s Ethernet Task Force, IEEE.
    10. ↑ "[802.3_NGBASET] FW: Approval of IEEE Std 802.3bz 2.5GBASE-T and 5GBASE-T". IEEE P802.3bz Task Force. Retrieved 2016-09-24.
    11. 1 2 3 4 5 6 7 8 9 10 11 12 13 "IEEE 802.3 Ethernet Task Force, Study Group, and Ad Hoc Officers". IEEE. 30 April 2021. Retrieved 2021-05-26.
    12. ↑ "Physical Layer Specifications and Management Parameters for 25 Gb/s – Electrical Automotive Ethernet". IEEE. 2023-08-11. Archived from the original on 2023-09-01. Retrieved 2023-09-01.
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