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802.3 also defines LAN access method using [[CSMA/CD]].
802.3 also defines LAN access method using [[CSMA/CD]].


==Predecessor technologies==
⚫
==Communication standards==
{| class="wikitable sortable"
{| class="wikitable"
!style="width:10em;"|Name
!Ethernet standard
!data-sort-type="number" | Date
!style="width:8em;"|Date
!Description
!Description
|-
|-
|"[[Aether (classical element)|Ether]] Network"
|Experimental<br />Ethernet
|1973
|1973<ref>{{cite web |url= http://americanhistory.si.edu/collections/search/object/nmah_687626 |title= Ethernet Prototype Circuit Board |publisher=Smithsonian National Museum of American History |accessdate= 2014-10-31}}</ref>
|An adaptation of (originally wireless) [[ALOHAnet]] for use at [[PARC (company)|Xerox PARC]]. "Ether Network" was subsequently abbreviated as "Ethernet".
|2.94&nbsp;[[Mbit/s]] (367&nbsp;[[kilobyte|kB]]/s) over [[coaxial cable]] (coax) [[bus network|bus]]
|-
|-
|Ethernet II<br />(DIX v2.0)
|{{nowrap|Ethernet (I)/DIX}}
|1980
|Developed at [[3com]] by former Xerox PARC employees, and promoted by Digital Equipment Corporation (DEC), Intel, and Xerox (hence "DIX") as an alternative to IBM's proprietary [[Token Ring]]/[[Token Bus]] system. The {{nowrap|10 Mbit/s}} specification prescribed a type of [[coax cable|coax cabling]] (initially called "Ethernet cable" and now named '[[10BASE5]]'), globally administered 48-bit destination and source addresses, and a globally administered 16-bit [[EtherType]]. Ethernet/DIX was initially used in conjunction with the [[Xerox Network Systems|XNS protocol]].
⚫
|-
|{{nowrap|Ethernet II/DIX 2}}
|1982
|1982
|Essentially the same as "Ethernet I", but adjusted for [[10BASE2]] ("CheaperNet") coax cable. DIX framing was ratified 15 years later as part of [[IEEE 802.3x|802.3x-1997]]. [[Internet Protocol|IP]] and [[Address Resolution Protocol|ARP]] were designed for DIX framing.
|10&nbsp;Mbit/s (1.25&nbsp;[[megabyte|MB]]/s) over thick coax. Frames have a Type field. This frame format is used on all forms of Ethernet by protocols in the [[Internet protocol suite]].
|}

⚫
==IEEE standards==
{| class="wikitable sortable"
!style="width:9em;"|IEEE documents
!style="width:7em;"|Date
!Description
|-
|-
|IEEE 802.3 standard
|'''802.3-1983'''
|1983
|1983
|[[10BASE5]] 10&nbsp;Mbit/s (1.25&nbsp;MB/s) over thick coax. Same as Ethernet&nbsp;II (above) except Type field is replaced by Length, and an [[IEEE 802.2|802.2]] LLC header follows the 802.3 header. Based on the [[Carrier sense multiple access with collision detection|CSMA/CD]] Process.
|First edition of the 802.3 standard. Based on {{nowrap|DIX Ethernet}} (above), but with different framing in which the EtherType field is replaced with a Length field and an [[IEEE 802.2|802.2]] LLC header (which includes a network layer type field). The original 802.3-1983 standard prescribed [[10BASE5]] (thick coax), and the use of [[carrier sense multiple access with collision detection]] (CSMA/CD).
|-
|-
|[[802.3a]]
|[[802.3a]]
|1985
|1985
|Defines Ethernet over {{nowrap|10 Mbit/s}} [[10BASE2]] thin coax ("cheapernet").
|[[10BASE2]] 10&nbsp;Mbit/s (1.25&nbsp;MB/s) over thin Coax (a.k.a. thinnet or cheapernet)
|-
|-
|[[802.3b]]
|[[802.3b]]
|1985
|1985
|Defines Ethernet over {{nowrap|10 Mbit/s}} [[10BROAD36]] inexpensive (TV-antenna-grade) coax cable.
|[[10BROAD36]]
|-
|-
|802.3c
|802.3b
|1985
|1985
|10&nbsp;Mbit/s (1.25&nbsp;MB/s) repeater specs
|Defines Ethernet repeater specification.
|-
|-
|802.3d
|802.3d
|1987
|1987
|[[Fiber-optic inter-repeater link]]
|Defines a [[Fiber-optic inter-repeater link]].
|-
|-
|[[802.3e]]
|[[802.3e]]
|1987
|1987
|[[1BASE5]] or [[StarLAN]]
|Defines Ethernet over {{nowrap|1 Mbit/s}} [[1BASE5]] ([[StarLAN]]) twisted-pair cable.
|-
|-
|[[802.3i]]
|[[802.3i]]
|1990
|1990
|[[10BASE-T]] 10&nbsp;Mbit/s (1.25&nbsp;MB/s) over twisted pair
|Defines Ethernet over {{nowrap|10 Mbit/s}} [[10BASE-T]] twisted-pair cable.
|-
|-
|802.3j
|802.3j
|1993
|1993
|Defines Ethernet over {{nowrap|10 Mbit/s}} [[10BASE-F]] fiber-optic cable.
|[[10BASE-F]] 10&nbsp;Mbit/s (1.25&nbsp;MB/s) over Fiber-Optic
|-
|-
|[[802.3u]]
|[[802.3u]]
|1995
|1995
|[[100BASE-TX]], [[100BASE-T4]], [[100BASE-FX]] Fast Ethernet at 100&nbsp;Mbit/s (12.5&nbsp;MB/s) with [[autonegotiation]]
|Defines Ethernet over {{nowrap|100 Mbit/s}} [[100BASE-TX]], [[100BASE-T4]], [[100BASE-FX]] with [[autonegotiation]].
|-
|-
|[[IEEE 802.3x|802.3x]]
|[[IEEE 802.3x|802.3x]]
|1997
|1997
|Full Duplex and [[Ethernet flow control|flow control]]; also incorporates DIX framing, so there's no longer a DIX/802.3 split
|Defines full duplex and [[Ethernet flow control|flow control]] characteristics. The amendment also accommodates DIX framing as an option, thereby resolving the incompatibilities between DIX and 802.3.
|-
|-
|802.3y
|802.3y
|1998
|1998
|Defines Ethernet over {{nowrap|100 Mbit/s}} [[100BASE-T2]] over inexpensive 2-wire voice-grade twisted-pair.
|[[100BASE-T2]] 100&nbsp;Mbit/s (12.5&nbsp;MB/s) over low quality twisted pair
|-
|-
|[[802.3z]]
|[[802.3z]]
|1998
|1998
|Defines Ethernet over {{nowrap|1000 Mbit/s}} [[1000BASE-X]] fiber-optic cable.
|[[1000BASE-X]] [[gigabit|Gbit]]/s Ethernet over Fiber-Optic at 1&nbsp;Gbit/s (125&nbsp;MB/s)
|-
|-
|802.3-1998
|'''802.3-1998'''
|1998
|1998
|A revision of base standard incorporating the above amendments and errata
|Second edition of the 802.3 standard. Consolidates/incorporates IEEE 802.3-1983, the 802.3a{{ndash}}802.3z amendments, and errata.
|-
|-
|[[802.3ab]]
|[[802.3ab]]
|1999
|1999
|[[1000BASE-T]] Gbit/s Ethernet over twisted pair at 1&nbsp;Gbit/s (125&nbsp;MB/s)
|Defines Ethernet over {{nowrap|1000 Mbit/s}} [[1000BASE-T]] twisted-pair
|-
|-
|[[802.3ac]]
|[[802.3ac]]
Line 82: Line 93:
|[[802.3ad]]
|[[802.3ad]]
|2000
|2000
|[[Link aggregation]] for parallel links, since moved to [[IEEE 802.1AX]]
|Defines [[link aggregation]] for parallel links, subsequently moved to [[IEEE 802.1AX]]
|-
|-
|802.3-2002
|'''802.3-2002'''
|2002
|2002
|A revision of base standard incorporating the three prior amendments and errata
|Third edition of the 802.3 standard. Consolidates/incorporates 802.3-1998, the 802.3ab/ac/ad amendments, and errata.
|-
|-
|[[802.3ae]]
|[[802.3ae]]
|2002
|2002
|[[10 Gigabit Ethernet]] over fiber; 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-SW, 10GBASE-LW, 10GBASE-EW
|Defines [[10 Gigabit Ethernet|{{nowrap|10 Gbit/s}} Ethernet]] over 10GBASE-SR/-SW short-range multimode fiber, 10GBASE-LR/-LW long-range single-mode fiber, and 10GBASE-ER/-EW extra-long-range single-mode fiber.
|-
|-
|[[802.3af]]
|[[802.3af]]
|2003
|2003
| [[Power over Ethernet]] (15.4 W)
|Defines [[Power over Ethernet]] (15.4 W) specification.
|-
|-
|[[802.3ah]]
|[[802.3ah]]
|2004
|2004
|Defines Ethernet for subscriber access networks ("[[Ethernet in the First Mile]]"). Includes specifications for 802.3 over {{nowrap|5.696 Mbit/s}} 2BASE-TL voice-grade twisted-pair, {{nowrap|100/1000 Mbit/s}} 100BASE-LX10/1000BASE-LX10 2-strand single-mode fiber, {{nowrap|100/1000 Mbit/s}} 100BASE-BX10/1000BASE-BX10 1-strand single-mode fiber, and {{nowrap|1000 Mbit/s}}-shared 1000BASE-PX10/-PX20 [[Passive optical network|PON]] fiber.
|[[Ethernet in the First Mile]]
|-
|-
|[[802.3ak]]
|[[802.3ak]]
|2004
|2004
|[[10GBASE-CX4]] 10&nbsp;Gbit/s (1,250&nbsp;MB/s) Ethernet over [[twinaxial cable]]s
|Defines Ethernet over {{nowrap|10 Gbit/s}} [[10GBASE-CX4]] [[twinaxial cable]].
|-
|-
|802.3-2005
|'''802.3-2005'''
|2005
|2005
|A revision of base standard incorporating the four prior amendments and errata.
|Fourth edition of the 802.3 standard. Consolidates/incorporates 802.3-2002, the 802.3ae/af/ah/ak amendments, and errata.
|-
|-
|[[802.3an]]
|[[802.3an]]
|2006
|2006
|Defines Ethernet over {{nowrap|10 Gbit/s}} [[10GBASE-T]] twisted-pair.
|[[10GBASE-T]] 10&nbsp;Gbit/s (1,250&nbsp;MB/s) Ethernet over unshielded twisted pair (UTP)
|-
|-
|802.3ap
|802.3ap
|2007
|2007
|[[Backplane]] Ethernet (1 and 10&nbsp;Gbit/s (125 and 1,250&nbsp;MB/s) over [[printed circuit board]]s)
|Defines Ethernet over {{nowrap|1 Gbit/s}} and {{nowrap|10 Gbit/s}} [[backplane]] (1 meter) circuits/interconnects.
|-
|-
|[[802.3aq]]
|[[802.3aq]]
|2006
|2006
|[[10GBASE-LRM]] 10&nbsp;Gbit/s (1,250&nbsp;MB/s) Ethernet over multimode fiber
|Defines Ethernet over {{nowrap|10 Gbit/s}} [[10GBASE-LRM]] multimode fiber.
|-
|-
|Withdrawn
|P802.3ar
|Cancelled
|Cancelled
|Cancelled working group P802.3ar to define Ethernet congestion management.
|Congestion management (withdrawn)
|-
|-
|802.3as
|802.3as
|2006
|2006
|Frame expansion
|Defines 802.3 frame size expansion
|-
|-
|[[802.3at]]
|[[802.3at]]
|2009
|2009
| [[Power over Ethernet]] enhancements (25.5&nbsp;W)
|Defines {{nowrap|25.5 W}} [[Power over Ethernet]] enhancements.
|-
|-
|802.3au
|802.3-2005/Cor 1
|2006
|2006
|Isolation requirements for Power over Ethernet (802.3-2005/Cor 1)
|Defines isolation requirements for Power over Ethernet (Working group P802.3au)
|-
|-
|[[802.3av]]
|[[802.3av]]
|2009
|2009
|10 Gbit/s [[Ethernet passive optical network|EPON]]
|Defines 10 Gbit/s [[Ethernet passive optical network]] (EPON)
|-
|-
|802.3aw
|802.3-2005/Cor 2
|2007
|2007
|Fixed an equation in the publication of 10GBASE-T (released as 802.3-2005/Cor 2)
|Fixes an equation in the publication of 10GBASE-T (Working group P802.3aw)
|-
|-
|802.3-2008
|'''802.3-2008'''
|2008
|2008
|A revision of base standard incorporating the 802.3an/ap/aq/as amendments, two corrigenda and errata. Link aggregation was moved to [[802.1AX]].
|Sixth edition of the 802.3 standard. Consolidates/incorporates 802.3-2005, the 802.3an/ap/aq/as amendments, two corrigenda and errata. Link aggregation was moved to [[802.1AX]].
|-
|-
|[[802.3az]]
|[[802.3az]]
|2010
|2010
|Energy-efficient Ethernet
|Defines energy-efficient Ethernet.
|-
|-
|[[802.3ba]]
|[[802.3ba]]
|2010
|2010
|40&nbsp;Gbit/s and 100&nbsp;Gbit/s Ethernet. 40&nbsp;Gbit/s over 1&nbsp;m backplane, 10&nbsp;m Cu cable assembly (4×25&nbsp;Gbit or 10×10&nbsp;Gbit lanes) and 100&nbsp;m of [[Multi-mode optical fiber|MMF]] and 100&nbsp;Gbit/s up to 10&nbsp;m of Cu cable assembly, 100&nbsp;m of [[Multi-mode optical fiber|MMF]] or 40&nbsp;km of [[Single-mode optical fiber|SMF]] respectively
|Defines {{nowrap|40 Gbit/s}} over {{nowrap|1 meter}} backplane interconnects, {{nowrap|10 meter}} copper cable assembly ({{nowrap|4×25 Gbit}} or {{nowrap|10×10 Gbit}} lanes), and {{nowrap|100 meter}} multi-mode fiber.<p>Also defines {{nowrap|100 Gbit/s}} over 10 meters of copper cable assembly, {{nowrap|100 meter}} multimode fiber, and {{nowrap|40 km}} of single-mode fiber.</p>
|-
|-
|802.3-2008/Cor 1
|802.3-2008/Cor 1
|2009
|2009
|Increase Pause Reaction Delay timings which are insufficient for 10&nbsp;Gbit/s (workgroup name was 802.3bb)
|Increases pause reaction delay timings that were insufficient for {{nowrap|10 Gbit/s}} (Working group 802.3bb).
|-
|-
|802.3bc
|802.3bc
|2009
|2009
|Move and update Ethernet related TLVs (type, length, values), previously specified in Annex F of [[IEEE 802.1AB]] (LLDP) to 802.3.
|Moves and update Ethernet related TLVs (type, length, values), previously specified in Annex F of [[IEEE 802.1AB]] (LLDP) to 802.3.
|-
|-
|802.3bd
|802.3bd
|2010
|2010
|Priority-based Flow Control. An amendment by the [[IEEE 802.1]] [[Data Center Bridging]] Task Group (802.1Qbb) to develop an amendment to IEEE Std 802.3 to add a MAC Control Frame to support IEEE 802.1Qbb Priority-based Flow Control.
|Defines priority-based flow control for Ethernet. An amendment by the [[IEEE 802.1]] [[Data Center Bridging]] Task Group (802.1Qbb) to develop an amendment to IEEE Std 802.3 to add a MAC Control Frame to support IEEE 802.1Qbb Priority-based Flow Control.
|-
|-
|802.3.1
|'''802.3.1'''
|2011
|2011
|MIB definitions for Ethernet. It consolidates the Ethernet related [[Management Information Base|MIBs]] present in Annex 30A&B, various [[IETF]] [[Request for Comments|RFC]]s, and 802.1AB annex F into one master document with a machine readable extract. (workgroup name was P802.3be)
|Defines MIB definitions for Ethernet. It consolidates the Ethernet related [[Management Information Base|MIBs]] present in Annex 30A&B, various [[IETF]] [[Request for Comments|RFC]]s, and 802.1AB annex F into one master document with a machine readable extract. (workgroup name was P802.3be)
|-
|-
|802.3bf
|802.3bf
Line 178: Line 189:
|802.3bg
|802.3bg
|2011
|2011
|Provide a 40&nbsp;Gbit/s [[Physical Medium Dependent|PMD]] which is optically compatible with existing carrier [[Single-mode optical fiber|SMF]] 40&nbsp;Gbit/s client interfaces ([[OTU3]]/[[STM-256]]/[[OC-768]]/[[Packet over SONET|40G POS]]).
|Defines a {{nowrap|40 Gbit/s}} [[Physical Medium Dependent|physical medium dependent]] that is optically compatible with existing carrier single-mode optical fiber {{nowrap|40 Gbit/s}} client interfaces ([[OTU3]]/[[STM-256]]/[[OC-768]]/[[Packet over SONET|40G POS]]).
|-
|-
|802.3-2012
|'''802.3-2012'''
|2012
|2012
|A revision of base standard incorporating the 802.3at/av/az/ba/bc/bd/bf/bg amendments, a corrigenda and errata.
|Seventh consolidated revision of the 802.3 standard. Incorporates 802.3-2008, amendments 802.3at/av/az/ba/bc/bd/bf/bg, one corrigenda, and errata.
|-
|-
|802.3bj
|802.3bj
|2014 (June)
|2014<!--(June)-->
|Define a 4-lane 100&nbsp;Gbit/s backplane PHY for operation over links consistent with copper traces on "improved FR-4" (as defined by IEEE P802.3ap or better materials to be defined by the Task Force) with lengths up to at least 1&nbsp;m and a 4-lane 100&nbsp;Gbit/s PHY for operation over links consistent with copper [[twinaxial cable]]s with lengths up to at least 5&nbsp;m.
|Defines a 4-lane {{nowrap|100 Gbit/s}} backplane PHY for operation over links consistent with copper traces on "improved FR-4" (as defined by IEEE P802.3ap or better materials to be defined by the Task Force) with lengths up to at least {{nowrap|1 meter}} and a 4-lane {{nowrap|100 Gbit/s}} PHY for operation over links consistent with copper [[twinaxial cable]]s with lengths up to at least {{nowrap|5 meters}}.
|-
|-
|802.3bk
|802.3bk
|2013
|2013
|This amendment to IEEE Std 802.3 defines the physical layer specifications and management parameters for EPON operation on point-to-multipoint passive optical networks supporting extended power budget classes of PX30, PX40, PRX40, and PR40 PMDs.
|Defines a physical layer specifications and management parameters for EPON operation on point-to-multipoint passive optical networks supporting extended power budget classes of PX30, PX40, PRX40, and PR40 PMDs.
|-
|-
|802.3bm
|802.3bm
|2015
|2015
|[[100 Gigabit Ethernet|100G/40G Ethernet]] for optical fiber
|Defines Ethernet over {{nowrap|100 Gbit/s}} and {{nowrap|40 Gbit/s}} for optical fiber{{explain|date=October 2017}}
|-
⚫
| '''802.3-2015'''
| 2015
|Eighth revision of the 802.3 standard. Consolidates/Incorporates 802.3-2012, and the 802.3bk/bj/bm amendments.
|-
|-
|802.3bp
|802.3bp
|2016<!--(June)-->
|2016 (June)<ref>{{cite web|url=http://www.ieee802.org/3/bp/ |title=IEEE P802.3bp 1000BASE-T1 PHY Task Force |date=2016-07-29 |accessdate=2016-10-02}}</ref>
|1000BASE-T1 – Gigabit Ethernet over a single twisted pair, automotive & industrial environments
|Defines Ethernet over {{nowrap|1000 Mbit/s}} 1000BASE-T1 single twisted-pair for automotive & industrial environments.<ref>{{cite web|url=http://www.ieee802.org/3/bp/ |title=IEEE P802.3bp 1000BASE-T1 PHY Task Force |date=2016-07-29 |accessdate=2016-10-02}}</ref>
|-
|-
|802.3bq
|802.3bq
|2016<!--(June)-->
|2016 (June)<ref>{{Cite web|url=http://www.ieee802.org/3/NGBASET/email/msg00972.html | publisher = IEEE | title = Approval of IEEE Std 802.3by-2016, IEEE Std 802.3bq-2016, IEEE Std 802.3bp-2016 and IEEE Std 802.3br-2016 |date=2016-06-30}}.</ref>
|25G/[[40GBASE-T]] for 4-pair balanced twisted-pair cabling with 2 connectors over 30&nbsp;m distances
|Defines Ethernet over 25GBASE-T/40GBASE-T for 4-pair balanced twisted-pair cabling with {{nowrap|2 connectors}} over {{nowrap|30 m}} distances.<ref>{{Cite web|url=http://www.ieee802.org/3/NGBASET/email/msg00972.html | publisher = IEEE | title = Approval of IEEE Std 802.3by-2016, IEEE Std 802.3bq-2016, IEEE Std 802.3bp-2016 and IEEE Std 802.3br-2016 |date=2016-06-30}}.</ref>
|-
|-
|802.3bs
|802.3bs
|2017 (Dec.) (TBD)
|{{nowrap|2017 (tentative)}}
|[[200GbE]] (200 Gbit/s) over single-mode fiber and [[400GbE]] (400 Gbit/s) over optical physical media
|200 Gbit/s Ethernet over single-mode fiber and 400 Gbit/s Ethernet over optical physical media{{explain|date=October 2017}}
|-
|-
|802.3bt
|802.3bt
|2017 (TBD)
|{{nowrap|2017 (tentative)}}
|[[Power over Ethernet]] enhancements up to 100&nbsp;W using all 4 pairs balanced twisted-pair cabling, lower standby power and specific enhancements to support IoT applications (e.g. lighting, sensors, building automation).
|Defines [[Power over Ethernet]] enhancements up to {{nowrap|100 W}} using all 4 pairs balanced twisted-pair cabling, lower standby power and specific enhancements to support IoT applications (e.g. lighting, sensors, building automation).
|-
|-
|802.3bw
|802.3bw
⚫
| 2015<ref>{{Cite web|url=http://www.ieee802.org/3/bw/ |title=IEEE P802.3bw 100BASE-T1 Task Force|date=2015-10-27|quote=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.}}</ref>
|100BASE-T1 – 100&nbsp;Mbit/s Ethernet over a single twisted pair for automotive applications
⚫
|-
⚫
| 802.3-2015
| 2015
| 2015
⚫
|Defines Ethernet over 100BASE-T1 single twisted pair for automotive applications.<ref>{{Cite web|url=http://www.ieee802.org/3/bw/ |title=IEEE P802.3bw 100BASE-T1 Task Force|date=2015-10-27|quote=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.}}</ref>
| 802.3bx – a new consolidated revision of the 802.3 standard including amendments 802.3bk/bj/bm
|-
|-
|[[802.3by]]
|[[802.3by]]
|2016<!-- (June)-->
|2016 (June)<ref>{{Cite web|url=http://www.ieee802.org/3/25GSG/email/msg00556.html |title=[STDS-802-3-25G] IEEE Std 802.3by-2016 Standard Approved!|date=2016-06-30}}</ref>
| [[Optical fiber]], twinax and backplane [[25 Gigabit Ethernet]]<ref>{{Citation | url = http://www.ieee802.org/3/by/ | publisher = IEEE | title = P802.3by 25 Gbit/s Ethernet Task Force}}.</ref>
|Defines [[25 Gigabit Ethernet]] over fiber, twinax and backplane interconnects.<ref>{{Cite web|url=http://www.ieee802.org/3/25GSG/email/msg00556.html |title=[STDS-802-3-25G] IEEE Std 802.3by-2016 Standard Approved!|date=2016-06-30}}</ref>
|-
|-
|802.3bz
|[[IEEE 802.3bz|802.3bz]]
|2016<!-- (Sep.)-->
|2016 (Sep.)<ref>{{Cite web|title=[802.3_NGBASET] FW: Approval of IEEE Std 802.3bz 2.5GBASE-T and 5GBASE-T |publisher=IEEE P802.3bz Task Force |url=http://www.ieee802.org/3/NGBASET/email/msg00996.html |accessdate=2016-09-24}}</ref>
| [[2.5GBASE-T and 5GBASE-T]] – 2.5&nbsp;Gigabit and 5&nbsp;Gigabit Ethernet over [[Category 5 cable|Cat-5]]/[[Category 6 cable|Cat-6]] twisted pair
|Defines Ethernet over {{nowrap|2.5 Gbit/s}} [[2.5GBASE-T]] and {{nowrap|5 Gbit/s}} [[5GBASE-T]] over [[Category 5 cable|Cat-5]]/[[Category 6 cable|Cat-6]] twisted pair.<ref>{{Cite web|title=[802.3_NGBASET] FW: Approval of IEEE Std 802.3bz 2.5GBASE-T and 5GBASE-T |publisher=IEEE P802.3bz Task Force |url=http://www.ieee802.org/3/NGBASET/email/msg00996.html |accessdate=2016-09-24}}</ref>
|-
|-
|802.3ca
|802.3ca
|2019 (TBD)
|{{nowrap|2019 (tentative)}}
|100G-EPON – 25 Gbit/s, 50 Gbit/s, and 100 Gbit/s over [[Ethernet]] [[Passive Optical Network]]s
|Defines Ethernet over {{nowrap|25 Gbit/s}}, {{nowrap|50 Gbit/s}}, and {{nowrap|100 Gbit/s}} over [[Passive Optical Network]]s (PONs).
|-
|-
|802.3cc
|802.3cc
|2017 (TBD)
|{{nowrap|2017 (tentative)}}
|25 Gbit/s over Single Mode Fiber
|Ethernet over 25 Gbit/s over Single Mode Fiber{{explain|date=October 2017}}
|-
|-
|802.3&nbsp;cd
|802.3cd
|2018 (TBD)
|{{nowrap|2018 (tentative)}}
|Media Access Control Parameters for 50 Gbit/s and Physical Layers and Management Parameters for 50 Gbit/s, 100 Gbit/s, and 200 Gbit/s Operation
|Defines media access control parameters for {{nowrap|50 Gbit/s}} and physical layers and management parameters for {{nowrap|50 Gbit/s}}, {{nowrap|100 Gbit/s}}, and {{nowrap|200 Gbit/s}} operation.
|}
|}


Revision as of 13:55, 18 October 2017

This article is about the standards working group. For Ethernet frame data format, see Ethernet frame.

IEEE 802.3 is a working group and a collection of Institute of Electrical and Electronics Engineers (IEEE) standards produced by the working group defining the physical layer and data link layer's media access control (MAC) of wired Ethernet. This is generally a local area network (LAN) technology with some wide area network (WAN) applications. Physical connections are made between nodes and/or infrastructure devices (hubs, switches, routers) by various types of copper or fiber cable.

802.3 is a technology that supports the IEEE 802.1 network architecture.

802.3 also defines LAN access method using CSMA/CD.

Predecessor technologies

Name Date Description
"Ether Network" 1973 An adaptation of (originally wireless) ALOHAnet for use at Xerox PARC. "Ether Network" was subsequently abbreviated as "Ethernet".
Ethernet (I)/DIX 1980 Developed at 3com by former Xerox PARC employees, and promoted by Digital Equipment Corporation (DEC), Intel, and Xerox (hence "DIX") as an alternative to IBM's proprietary Token Ring/Token Bus system. The 10 Mbit/s specification prescribed a type of coax cabling (initially called "Ethernet cable" and now named '10BASE5'), globally administered 48-bit destination and source addresses, and a globally administered 16-bit EtherType. Ethernet/DIX was initially used in conjunction with the XNS protocol.
Ethernet II/DIX 2 1982 Essentially the same as "Ethernet I", but adjusted for 10BASE2 ("CheaperNet") coax cable. DIX framing was ratified 15 years later as part of 802.3x-1997. IP and ARP were designed for DIX framing.

IEEE standards

IEEE documents Date Description
802.3-1983 1983 First edition of the 802.3 standard. Based on DIX Ethernet (above), but with different framing in which the EtherType field is replaced with a Length field and an 802.2 LLC header (which includes a network layer type field). The original 802.3-1983 standard prescribed 10BASE5 (thick coax), and the use of carrier sense multiple access with collision detection (CSMA/CD).
802.3a 1985 Defines Ethernet over 10 Mbit/s 10BASE2 thin coax ("cheapernet").
802.3b 1985 Defines Ethernet over 10 Mbit/s 10BROAD36 inexpensive (TV-antenna-grade) coax cable.
802.3b 1985 Defines Ethernet repeater specification.
802.3d 1987 Defines a Fiber-optic inter-repeater link.
802.3e 1987 Defines Ethernet over 1 Mbit/s 1BASE5 (StarLAN) twisted-pair cable.
802.3i 1990 Defines Ethernet over 10 Mbit/s 10BASE-T twisted-pair cable.
802.3j 1993 Defines Ethernet over 10 Mbit/s 10BASE-F fiber-optic cable.
802.3u 1995 Defines Ethernet over 100 Mbit/s 100BASE-TX, 100BASE-T4, 100BASE-FX with autonegotiation.
802.3x 1997 Defines full duplex and flow control characteristics. The amendment also accommodates DIX framing as an option, thereby resolving the incompatibilities between DIX and 802.3.
802.3y 1998 Defines Ethernet over 100 Mbit/s 100BASE-T2 over inexpensive 2-wire voice-grade twisted-pair.
802.3z 1998 Defines Ethernet over 1000 Mbit/s 1000BASE-X fiber-optic cable.
802.3-1998 1998 Second edition of the 802.3 standard. Consolidates/incorporates IEEE 802.3-1983, the 802.3a–802.3z amendments, and errata.
802.3ab 1999 Defines Ethernet over 1000 Mbit/s 1000BASE-T twisted-pair
802.3ac 1998 Max frame size extended to 1522 bytes (to allow "Q-tag") The Q-tag includes 802.1Q VLAN information and 802.1p priority information.
802.3ad 2000 Defines link aggregation for parallel links, subsequently moved to IEEE 802.1AX
802.3-2002 2002 Third edition of the 802.3 standard. Consolidates/incorporates 802.3-1998, the 802.3ab/ac/ad amendments, and errata.
802.3ae 2002 Defines 10 Gbit/s Ethernet over 10GBASE-SR/-SW short-range multimode fiber, 10GBASE-LR/-LW long-range single-mode fiber, and 10GBASE-ER/-EW extra-long-range single-mode fiber.
802.3af 2003 Defines Power over Ethernet (15.4 W) specification.
802.3ah 2004 Defines Ethernet for subscriber access networks ("Ethernet in the First Mile"). Includes specifications for 802.3 over 5.696 Mbit/s 2BASE-TL voice-grade twisted-pair, 100/1000 Mbit/s 100BASE-LX10/1000BASE-LX10 2-strand single-mode fiber, 100/1000 Mbit/s 100BASE-BX10/1000BASE-BX10 1-strand single-mode fiber, and 1000 Mbit/s-shared 1000BASE-PX10/-PX20 PON fiber.
802.3ak 2004 Defines Ethernet over 10 Gbit/s 10GBASE-CX4 twinaxial cable.
802.3-2005 2005 Fourth edition of the 802.3 standard. Consolidates/incorporates 802.3-2002, the 802.3ae/af/ah/ak amendments, and errata.
802.3an 2006 Defines Ethernet over 10 Gbit/s 10GBASE-T twisted-pair.
802.3ap 2007 Defines Ethernet over 1 Gbit/s and 10 Gbit/s backplane (1 meter) circuits/interconnects.
802.3aq 2006 Defines Ethernet over 10 Gbit/s 10GBASE-LRM multimode fiber.
Withdrawn Cancelled Cancelled working group P802.3ar to define Ethernet congestion management.
802.3as 2006 Defines 802.3 frame size expansion
802.3at 2009 Defines 25.5 W Power over Ethernet enhancements.
802.3-2005/Cor 1 2006 Defines isolation requirements for Power over Ethernet (Working group P802.3au)
802.3av 2009 Defines 10 Gbit/s Ethernet passive optical network (EPON)
802.3-2005/Cor 2 2007 Fixes an equation in the publication of 10GBASE-T (Working group P802.3aw)
802.3-2008 2008 Sixth edition of the 802.3 standard. Consolidates/incorporates 802.3-2005, the 802.3an/ap/aq/as amendments, two corrigenda and errata. Link aggregation was moved to 802.1AX.
802.3az 2010 Defines energy-efficient Ethernet.
802.3ba 2010 Defines 40 Gbit/s over 1 meter backplane interconnects, 10 meter copper cable assembly (4×25 Gbit or 10×10 Gbit lanes), and 100 meter multi-mode fiber.

Also defines 100 Gbit/s over 10 meters of copper cable assembly, 100 meter multimode fiber, and 40 km of single-mode fiber.

802.3-2008/Cor 1 2009 Increases pause reaction delay timings that were insufficient for 10 Gbit/s (Working group 802.3bb).
802.3bc 2009 Moves and update Ethernet related TLVs (type, length, values), previously specified in Annex F of IEEE 802.1AB (LLDP) to 802.3.
802.3bd 2010 Defines priority-based flow control for Ethernet. An amendment by the IEEE 802.1 Data Center Bridging Task Group (802.1Qbb) to develop an amendment to IEEE Std 802.3 to add a MAC Control Frame to support IEEE 802.1Qbb Priority-based Flow Control.
802.3.1 2011 Defines MIB definitions for Ethernet. It consolidates the Ethernet related MIBs present in Annex 30A&B, various IETF RFCs, and 802.1AB annex F into one master document with a machine readable extract. (workgroup name was P802.3be)
802.3bf 2011 Provide an accurate indication of the transmission and reception initiation times of certain packets as required to support IEEE P802.1AS.
802.3bg 2011 Defines a 40 Gbit/s physical medium dependent that is optically compatible with existing carrier single-mode optical fiber 40 Gbit/s client interfaces (OTU3/STM-256/OC-768/40G POS).
802.3-2012 2012 Seventh consolidated revision of the 802.3 standard. Incorporates 802.3-2008, amendments 802.3at/av/az/ba/bc/bd/bf/bg, one corrigenda, and errata.
802.3bj 2014 Defines a 4-lane 100 Gbit/s backplane PHY for operation over links consistent with copper traces on "improved FR-4" (as defined by IEEE P802.3ap or better materials to be defined by the Task Force) with lengths up to at least 1 meter and a 4-lane 100 Gbit/s PHY for operation over links consistent with copper twinaxial cables with lengths up to at least 5 meters.
802.3bk 2013 Defines a physical layer specifications and management parameters for EPON operation on point-to-multipoint passive optical networks supporting extended power budget classes of PX30, PX40, PRX40, and PR40 PMDs.
802.3bm 2015 Defines Ethernet over 100 Gbit/s and 40 Gbit/s for optical fiber[further explanation needed]
802.3-2015 2015 Eighth revision of the 802.3 standard. Consolidates/Incorporates 802.3-2012, and the 802.3bk/bj/bm amendments.
802.3bp 2016 Defines Ethernet over 1000 Mbit/s 1000BASE-T1 single twisted-pair for automotive & industrial environments.[1]
802.3bq 2016 Defines Ethernet over 25GBASE-T/40GBASE-T for 4-pair balanced twisted-pair cabling with 2 connectors over 30 m distances.[2]
802.3bs 2017 (tentative) 200 Gbit/s Ethernet over single-mode fiber and 400 Gbit/s Ethernet over optical physical media[further explanation needed]
802.3bt 2017 (tentative) Defines Power over Ethernet enhancements up to 100 W using all 4 pairs balanced twisted-pair cabling, lower standby power and specific enhancements to support IoT applications (e.g. lighting, sensors, building automation).
802.3bw 2015 Defines Ethernet over 100BASE-T1 single twisted pair for automotive applications.[3]
802.3by 2016 Defines 25 Gigabit Ethernet over fiber, twinax and backplane interconnects.[4]
802.3bz 2016 Defines Ethernet over 2.5 Gbit/s 2.5GBASE-T and 5 Gbit/s 5GBASE-T over Cat-5/Cat-6 twisted pair.[5]
802.3ca 2019 (tentative) Defines Ethernet over 25 Gbit/s, 50 Gbit/s, and 100 Gbit/s over Passive Optical Networks (PONs).
802.3cc 2017 (tentative) Ethernet over 25 Gbit/s over Single Mode Fiber[further explanation needed]
802.3cd 2018 (tentative) Defines media access control parameters for 50 Gbit/s and physical layers and management parameters for 50 Gbit/s, 100 Gbit/s, and 200 Gbit/s operation.

See also

References

  1. ^ "IEEE P802.3bp 1000BASE-T1 PHY Task Force". 2016-07-29. Retrieved 2016-10-02.
  2. ^ "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..
  3. ^ "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.
  4. ^ "[STDS-802-3-25G] IEEE Std 802.3by-2016 Standard Approved!". 2016-06-30.
  5. ^ "[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.

External links

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