IEEE 802.3

IEEE 802.3
Name	IEEE 802.3
Purpose	Ethernet
Developer	Institute of Electrical and Electronics Engineers
Introduced	1983
Based on	DIX Ethernet
Website	IEEE Standards Association

IEEE 802.3 is a set of standards for Ethernet local area networks (LANs) developed by the Institute of Electrical and Electronics Engineers (IEEE), in collaboration with Xerox, Digital Equipment Corporation, and Intel. The standard was first introduced in 1983, building upon the earlier DIX Ethernet specification developed by Bob Metcalfe, David Boggs, and Chuck Thacker at Xerox PARC. The development of IEEE 802.3 was influenced by the work of Vint Cerf and Bob Kahn on the Internet Protocol (IP) and the Transmission Control Protocol (TCP), as well as the Open Systems Interconnection (OSI) model developed by the International Organization for Standardization (ISO). The standard has undergone numerous revisions, with significant contributions from Cisco Systems, Juniper Networks, and Hewlett Packard Enterprise.

Introduction

The IEEE 802.3 standard defines the physical and data link layers of the OSI model for Ethernet networks, ensuring interoperability between devices from different manufacturers, such as Apple, Dell, and Lenovo. The standard is maintained by the IEEE 802.3 Working Group, which includes representatives from Google, Microsoft, and Facebook. The introduction of IEEE 802.3 has enabled the widespread adoption of Ethernet technology in various industries, including finance (e.g., New York Stock Exchange), healthcare (e.g., Mayo Clinic), and education (e.g., Massachusetts Institute of Technology), with notable implementations at Stanford University and California Institute of Technology. The standard has also been influenced by the work of Robert Taylor and Larry Roberts on the ARPANET project, as well as the development of the Internet by Jon Postel and IETF.

History

The development of IEEE 802.3 began in the late 1970s, with the formation of the IEEE 802 committee, which was tasked with developing standards for local area networks (LANs). The committee was chaired by Bob Metcalfe, who played a key role in the development of the standard, along with David Boggs and Chuck Thacker. The first draft of the standard was published in 1980, and it was later adopted as an official standard in 1983, with significant contributions from IBM, AT&T, and Bell Labs. The standard has undergone numerous revisions, with new versions being published in 1985, 1990, 1993, and 1998, incorporating feedback from Oracle, SAP, and Ericsson. The development of IEEE 802.3 has been influenced by the work of Donald Davies and Roger Scantlebury on the National Physical Laboratory (NPL) network, as well as the development of the Internet Protocol (IP) by Vint Cerf and Bob Kahn.

Standards

The IEEE 802.3 standard defines a range of Ethernet variants, including 10BASE-T, 100BASE-TX, and 1000BASE-T, which support data transfer rates of 10 Mbps, 100 Mbps, and 1 Gbps, respectively. The standard also defines the physical and data link layers of the OSI model, including the Media Access Control (MAC) and Physical Layer (PHY) protocols, which have been implemented by Intel, Broadcom, and Marvell Technology Group. The standard is compatible with a range of network topologies, including star topology, bus topology, and mesh topology, and has been adopted by NASA, European Space Agency, and CERN. The development of IEEE 802.3 has been influenced by the work of Paul Baran and Donald Davies on the development of packet switching networks, as well as the development of the Internet by Jon Postel and IETF.

Ethernet Variants

The IEEE 802.3 standard defines a range of Ethernet variants, including 10GBASE-T, 40GBASE-T, and 100GBASE-T, which support data transfer rates of 10 Gbps, 40 Gbps, and 100 Gbps, respectively. These variants are used in a range of applications, including data centers, high-performance computing, and telecommunications networks, with notable implementations at Amazon Web Services, Microsoft Azure, and Google Cloud Platform. The standard also defines a range of power over Ethernet (PoE) variants, including PoE+ and UPoE, which provide power to devices over the Ethernet cable, and have been adopted by Cisco Systems, Juniper Networks, and Hewlett Packard Enterprise. The development of these variants has been influenced by the work of Robert Metcalfe and David Boggs on the development of Ethernet technology, as well as the development of the Internet by Vint Cerf and Bob Kahn.

Technical Overview

The IEEE 802.3 standard defines the technical details of Ethernet networks, including the physical and data link layers of the OSI model. The standard specifies the use of twisted pair or fiber optic cables, and defines the Media Access Control (MAC) and Physical Layer (PHY) protocols, which have been implemented by Intel, Broadcom, and Marvell Technology Group. The standard also defines the use of CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol for medium access control, and has been influenced by the work of Norman Abramson and Frank Heart on the development of ALOHAnet and ARPANET. The development of IEEE 802.3 has also been influenced by the work of Larry Roberts and Vint Cerf on the development of the Internet Protocol (IP) and the Transmission Control Protocol (TCP).

Applications

The IEEE 802.3 standard has a wide range of applications, including local area networks (LANs), wide area networks (WANs), and metropolitan area networks (MANs). The standard is used in a range of industries, including finance (e.g., New York Stock Exchange), healthcare (e.g., Mayo Clinic), and education (e.g., Massachusetts Institute of Technology), with notable implementations at Stanford University and California Institute of Technology. The standard is also used in data centers, cloud computing, and Internet of Things (IoT) applications, with significant contributions from Google, Microsoft, and Facebook. The development of IEEE 802.3 has enabled the widespread adoption of Ethernet technology, and has had a significant impact on the development of modern computer networks, with influences from Bob Metcalfe, David Boggs, and Chuck Thacker.

Category:Computer networks