IEEE 802.3

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

IEEE 802.3 is a

media access control (MAC) of wired Ethernet. The standards are produced by the working group of Institute of Electrical and Electronics Engineers (IEEE). 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 a LAN access method using CSMA/CD.

Communication standards

Ethernet standard IEEE approval date Description
Experimental
Ethernet 		1973[a][1] 2.94 
Mbit/s (367 kB/s) over coaxial cable (coax) bus
. Single-octet node address unique only to individual network.
Ethernet I
(DIX v1.0) 		1980-09[b] 10 Mbit/s (1.25 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. Six-octet MAC address.
Ethernet II
(DIX v2.0) 		1982-11[b]
802.3-1985 1983-06
CSMA/CD
media access method.
802.3a
 1985-11 10BASE2 10 Mbit/s (1.25 MB/s) over thin Coax (a.k.a. thinnet or cheapernet)
802.3b
 1985-09 10BROAD36
802.3c 1985-12 10 Mbit/s (1.25 MB/s) repeater specs
802.3d
 1987-12
Fiber-optic inter-repeater link
802.3e
 1987-06
1BASE5 or StarLAN, first use of (voice-grade) twisted pair
cabling, 1 Mbit/s, maximum reach of 250 to 500 m
802.3h 1990-09 10 Mbit/s layer management, DTEs
802.3i
 1990-09
10BASE-T
10 Mbit/s (1.25 MB/s) over twisted pair
802.3j
 1992-09
10BASE-F 10 Mbit/s (1.25 MB/s) over optical fiber
802.3k 1992-09 10 Mbit/s layer management, repeaters
802.3m 1995-09 Maintenance
802.3n 1995-09 Maintenance
802.3q 1993-06
GDMO (ISO/IEC 10165-4
) format for Layer Managed Objects
802.3r 1996-07 10BASE5 Medium Attachment Unit PICS
802.3s 1995-09 Maintenance
802.3t 1995-06 120 Ω informative annex for 10BASE-T
802.3u
 1995-06
100BASE-FX Fast Ethernet at 100 Mbit/s (12.5 MB/s) with autonegotiation
802.v 1995-12 150 Ω informative annex for 10BASE-T
802.3x
 1997-03 Full Duplex and flow control; also incorporates DIX framing, so there's no longer a DIX/802.3 split
802.3y
 1997-03
100BASE-T2
100 Mbit/s (12.5 MB/s) over voice-grade twisted pair
802.3z
 1998-06
Gbit
/s Ethernet over optical fiber at 1 Gbit/s (125 MB/s)
802.3-1998 1998-06 (802.3aa) A revision of base standard incorporating the above amendments and errata
802.3ab
 1999-06
1000BASE-T
Gbit/s Ethernet over twisted pair at 1 Gbit/s (125 MB/s)
802.3ac
 1998-09 Max frame size extended to 1522 bytes (to allow "Q-tag") The Q-tag includes
802.1p
priority information.
802.3ad
 2000-03
IEEE 802.1AX
802.3-2002 2002-01 (802.3ag) A revision of base standard incorporating the three prior amendments and errata
802.3ae
 2002-06 10 Gigabit Ethernet over fiber; 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-SW, 10GBASE-LW, 10GBASE-EW
802.3af
 2003-06 Power over Ethernet (15.4 W)
802.3ah
 2004-06
Ethernet in the First Mile
802.3ak
 2004-02
twinaxial cables
802.3-2005 2005-06 (802.3am) A revision of base standard incorporating the four prior amendments and errata.
802.3an
 2006-06
10GBASE-T
10 Gbit/s (1,250 MB/s) Ethernet over unshielded twisted pair (UTP)
802.3ap 2007-03 Backplane Ethernet (1 and 10 Gbit/s (125 and 1,250 MB/s) over printed circuit boards)
802.3aq
 2006-09
10GBASE-LRM
10 Gbit/s (1,250 MB/s) Ethernet over multimode fiber
P802.3ar Cancelled Congestion management (withdrawn)
802.3as 2006-09 Frame expansion
802.3at
 2009-09 Power over Ethernet enhancements (25.5 W)
802.3au
 2006-06 Isolation requirements for Power over Ethernet (802.3-2005/Cor 1)
802.3av
 2009-09 10 Gbit/s
EPON
802.3aw 2007-06 Fixed an equation in the publication of 10GBASE-T (released as 802.3-2005/Cor 2)
802.3ax 2008-11 Link aggregation – moved to and approved as
802.1AX
802.3-2008 2008-12 (802.3ay) A revision of base standard incorporating the 802.3an/ap/aq/as amendments, two corrigenda and errata.
802.3az
 2010-09 Energy-Efficient Ethernet
802.3ba
 2010-06 40 Gbit/s and 100 Gbit/s Ethernet. 40 Gbit/s over 1 m backplane, 10 m Cu cable assembly (4×25 Gbit or 10×10 Gbit lanes) and 100 m of MMF and 100 Gbit/s up to 10 m of Cu cable assembly, 100 m of MMF or 40 km of SMF respectively
802.3-2008/Cor 1 2009-12 (802.3bb) Increase Pause Reaction Delay timings which are insufficient for 10 Gbit/s (workgroup name was 802.3bb)
802.3bc 2009-09 Move and update Ethernet related TLVs (type, length, values), previously specified in Annex F of
IEEE 802.1AB
(LLDP) to 802.3.
802.3bd 2011-06 Priority-based Flow Control. An amendment by the
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 2011-05 (802.3be) MIB definitions for Ethernet. It consolidates the Ethernet related
IETF RFCs
, and 802.1AB annex F into one master document with a machine readable extract. (workgroup name was P802.3be)
802.3bf 2011-05 Provide an accurate indication of the transmission and reception initiation times of certain packets as required to support IEEE P802.1AS.
802.3bg 2011-03 Provide a 40 Gbit/s
40G POS
).
802.3-2012 2012-08 (802.3bh) A revision of base standard incorporating the 802.3at/av/az/ba/bc/bd/bf/bg amendments, a corrigenda and errata.
802.3bj 2014-06 Define 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 m and a 4-lane 100 Gbit/s PHY for operation over links consistent with copper
twinaxial cables
with lengths up to at least 5 m.
802.3bk 2013-08 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.
802.3bm 2015-02 100G/40G Ethernet for optical fiber
802.3bn 2016-09 10G-
EPON
and 10GPASS-XR, passive optical networks over coax
802.3bp 2016-06[2]
1000BASE-T1
– Gigabit Ethernet over a single twisted pair, automotive & industrial environments
802.3bq 2016-06[3]
40GBASE-T
Ethernet for 4-pair balanced twisted pair cabling with 2 connectors over 30 m distances
802.3br 2016-06 Specification and Management Parameters for Interspersing Express Traffic
802.3bs 2017-12
400GbE
(400 Gbit/s) over optical physical media
802.3bt
 2018-09 Third generation Power over Ethernet with up to 100 W using all 4 pairs balanced twisted pair cabling (4PPoE), including 10GBASE-T, lower standby power and specific enhancements to support IoT applications (e.g. lighting, sensors, building automation).
802.3bu
 2016-12
Power over Data Lines (PoDL) for single twisted pair Ethernet (100BASE-T1
)
802.3bv 2017-02 Gigabit Ethernet over plastic optical fiber (POF)
802.3bw 2015-10[4]
100BASE-T1
– 100 Mbit/s Ethernet over a single twisted pair for automotive applications
802.3-2015 2015-09 802.3bx – a new consolidated revision of the 802.3 standard including amendments 802.3bk/bj/bm
802.3by
 2016-06[5] Optical fiber, twinax and backplane 25 Gigabit Ethernet[6]
802.3bz 2016-09[7]
Cat-5e/Cat-6
twisted pair
802.3ca 2020-06 25G-EPON and 50G-EPON – Downstream/Upstream rates of 25/10, 25/25, 50/10, 50/25, 50/50 Gbit/s over
Passive Optical Networks
802.3cb 2018-09 2.5 Gbit/s and 5 Gbit/s Operation over Backplane
802.3cc 2017-12 25 Gbit/s over Single Mode Fiber
802.3cd 2018-12 Media Access Control Parameters for 50 Gbit/s and Physical Layers and Management Parameters for 50, 100, and 200 Gbit/s Operation
802.3ce 2017-03 Multilane Timestamping
802.3.2-2019 2019-03 802.3cf, YANG Data Model Definitions
802.3cg
 2019-11
10BASE-T1S
– 10 Mbit/s Single twisted pair Ethernet
802.3ch
 2020-06 MultiGigBASE-T1 Automotive Ethernet (2.5, 5, 10 Gbit/s) over 15 m with optional PoDL
802.3-2018 2018-08 802.3cj – 802.3-2015 maintenance, merge recent amendments bn/bp/bq/br/bs/bu/bv/bw/by/bz/cc/ce
802.3ck 2022-09 100, 200, and 400 Gbit/s Ethernet using 100 Gbit/s lanes, chaired by Beth Kochuparambil[8]
802.3cm 2020-01 400 Gbit/s over multimode fiber (four and eight pairs, 100 m)
802.3cn 2019-11 50 Gbit/s (40 km), 100 Gbit/s (80 km), 200 Gbit/s (four λ, 40 km), and 400 Gbit/s (eight λ, 40 km and single λ, 80 km over
DWDM
) over Single-Mode Fiber and DWDM
802.3cp 2021-06 10/25/50 Gbit/s single-strand optical access with at least 10/20/40 km reach, chaired by Frank Effenberger[8]
802.3cq
 2020-01 Power over Ethernet over 2 pairs (maintenance)
802.3cr 2021-02 Isolation (maintenance)
802.3cs 2022-09 "Super-PON" – increased-reach, 10 Gbit/s optical access with at least 50 km reach and 1:64 split ratio per wavelength pair, 16 wavelength pairs, chaired by Claudio DeSanti[8]
802.3ct 2021-06 100 Gbit/s over DWDM systems (80 km reach using coherent modulation), chaired by John D'Ambrosia[8]
802.3cu 2021-02 100 Gbit/s and 400 Gbit/s over SMF using 100 Gbit/s lanes
802.3cv
 2021-05 Power over Ethernet maintenance, chaired by Chad Jones[8]
802.3cw (TBD) 400 Gbit/s over DWDM Systems – scheduled for fall 2024, chaired by John D'Ambrosia[8]
802.3cx 2023-03 Improved PTP timestamping accuracy, chaired by Steve Gorshe[8]
802.3cy 2023-06 MultiGigBASE-T1 25 Gbit/s electrical automotive Ethernet,[9] chaired by Steve Carlson[8]
802.3cz 2023-03 Multi-gigabit optical automotive Ethernet, chaired by Bob Grow[8]
802.3da (TBD)
10BASE-T1S 10 Mb/s operation over single balanced pair multidrop segments, extended length up to 50 m – scheduled for mid 2025, chaired by Chad Jones[8]
802.3db 2022-09 100 Gbit/s, 200 Gbit/s, and 400 Gbit/s operation over optical fiber using 100 Gbit/s Signaling, chaired by Robert Lingle[8]
802.3-2022 2022-07 802.3dc – 802.3-2018 maintenance, merge recent amendments bt/ca/cb/cd/cg/ch/cm/cn/cp/cq/cr/ct/cu/cv, chaired by Adam Healey[8]
802.3dd
 2022-06 Power over Data Lines of single-pair Ethernet maintenance, chaired by George Zimmerman[8]
802.3de 2022-09 Time synchronization for point-to-point single-pair Ethernet, chaired by George Zimmerman
802.3df 2024-02 200 Gb/s, 400 Gb/s and 800 Gb/s using 100 Gbit/s lanes, chaired by John D’Ambrosia
802.3dg (TBD)
1000BASE-T1
extended length to 500 m – scheduled for mid 2025, chaired by George Zimmerman
802.3dh canceled Multi-gigabit automotive Ethernet over plastic optical fiber, chaired by Yuji Watanabe
802.3dj (TBD) 200 Gb/s, 400 Gb/s, 800 Gb/s and 1.6 Tbit/s using 200 Gbit/s lanes – scheduled for spring 2026, chaired by John D'Ambrosia
802.3dk (TBD) Greater than 50 Gbit/s bidirectional optical access, chaired by Yuanqiu Luo
  1. Xerox PARC
  2. ^ a b published by DEC, Intel, Xerox PARC

See also

References

  1. ^ "Ethernet Prototype Circuit Board". Smithsonian National Museum of American History. Retrieved 2014-10-31.
  2. ^ "IEEE P802.3bp 1000BASE-T1 PHY Task Force". 2016-07-29. Retrieved 2016-10-02.
  3. ^ "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..
  4. ^ "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.
  5. ^ "[STDS-802-3-25G] IEEE Std 802.3by-2016 Standard Approved!". 2016-06-30.
  6. ^ P802.3by 25 Gbit/s Ethernet Task Force, IEEE.
  7. ^ "[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.
  8. ^ a b c d e f g h i j k l m "IEEE 802.3 Ethernet Task Force, Study Group, and Ad Hoc Officers". IEEE. 30 April 2021. Retrieved 2021-05-26.
  9. ^ "Physical Layer Specifications and Management Parameters for 25 Gb/s - Electrical Automotive Ethernet". IEEE. 2023-08-11.

External links

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