IEEE 802.3

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IEEE 802.3 is a working group and a collection of 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 technology with some wide area network 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

Communication Standards[edit]

Ethernet StandardDateDescription
Experimental
Ethernet
1973[1]2.94 Mbit/s (367 kB/s) over coaxial cable (coax) bus
Ethernet II
(DIX v2.0)
198210 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.
IEEE 802.3198310BASE5 10 Mbit/s (1.25 MB/s) over thick coax. Same as Ethernet II (above) except Type field is replaced by Length, and an 802.2 LLC header follows the 802.3 header. Based on the CSMA/CD Process.
802.3a198510BASE2 10 Mbit/s (1.25 MB/s) over thin Coax (a.k.a. thinnet or cheapernet)
802.3b198510BROAD36
802.3c198510 Mbit/s (1.25 MB/s) repeater specs
802.3d1987Fiber-optic inter-repeater link
802.3e19871BASE5 or StarLAN
802.3i199010BASE-T 10 Mbit/s (1.25 MB/s) over twisted pair
802.3j199310BASE-F 10 Mbit/s (1.25 MB/s) over Fiber-Optic
802.3u1995100BASE-TX, 100BASE-T4, 100BASE-FX Fast Ethernet at 100 Mbit/s (12.5 MB/s) w/autonegotiation
802.3x1997Full Duplex and flow control; also incorporates DIX framing, so there's no longer a DIX/802.3 split
802.3y1998100BASE-T2 100 Mbit/s (12.5 MB/s) over low quality twisted pair
802.3z19981000BASE-X Gbit/s Ethernet over Fiber-Optic at 1 Gbit/s (125 MB/s)
802.3-19981998A revision of base standard incorporating the above amendments and errata
802.3ab19991000BASE-T Gbit/s Ethernet over twisted pair at 1 Gbit/s (125 MB/s)
802.3ac1998Max frame size extended to 1522 bytes (to allow "Q-tag") The Q-tag includes 802.1Q VLAN information and 802.1p priority information.
802.3ad2000Link aggregation for parallel links, since moved to IEEE 802.1AX
802.3-20022002A revision of base standard incorporating the three prior amendments and errata
802.3ae200310 Gbit/s (1,250 MB/s) Ethernet over fiber; 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-SW, 10GBASE-LW, 10GBASE-EW
802.3af2003Power over Ethernet (12.95 W)
802.3ah2004Ethernet in the First Mile
802.3ak200410GBASE-CX4 10 Gbit/s (1,250 MB/s) Ethernet over twin-axial cable
802.3-20052005A revision of base standard incorporating the four prior amendments and errata.
802.3an200610GBASE-T 10 Gbit/s (1,250 MB/s) Ethernet over unshielded twisted pair (UTP)
802.3ap2007Backplane Ethernet (1 and 10 Gbit/s (125 and 1,250 MB/s) over printed circuit boards)
802.3aq200610GBASE-LRM 10 Gbit/s (1,250 MB/s) Ethernet over multimode fiber
P802.3arCancelledCongestion management (withdrawn)
802.3as2006Frame expansion
802.3at2009Power over Ethernet enhancements (25.5 W)
802.3au2006Isolation requirements for Power over Ethernet (802.3-2005/Cor 1)
802.3av200910 Gbit/s EPON
802.3aw2007Fixed an equation in the publication of 10GBASE-T (released as 802.3-2005/Cor 2)
802.3-20082008A revision of base standard incorporating the 802.3an/ap/aq/as amendments, two corrigenda and errata. Link aggregation was moved to 802.1AX.
802.3az2010Energy Efficient Ethernet
802.3ba201040 Gbit/s and 100 Gbit/s Ethernet. 40 Gbit/s over 1m backplane, 10 m Cu cable assembly (4x25 Gbit or 10x10 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 12009Increase Pause Reaction Delay timings which are insufficient for 10 Gbit/s (workgroup name was 802.3bb)
802.3bc2009Move and update Ethernet related TLVs (type, length, values), previously specified in Annex F of IEEE 802.1AB (LLDP) to 802.3.
802.3bd2010Priority-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.
802.3.12011MIB 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)
802.3bf2011Provide an accurate indication of the transmission and reception initiation times of certain packets as required to support IEEE P802.1AS.
802.3bg2011Provide a 40 Gbit/s PMD which is optically compatible with existing carrier SMF 40 Gbit/s client interfaces (OTU3/STM-256/OC-768/40G POS).
802.3-20122012A revision of base standard incorporating the 802.3at/av/az/ba/bc/bd/bf/bg amendments, a corrigenda and errata.
802.3bj~Mar 2014Define 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 1m and a 4-lane 100 Gbit/s PHY for operation over links consistent with copper twin-axial cables with lengths up to at least 5m.
802.3bk2013This 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.
802.3bp~May 2014Gigabit Ethernet over a single twisted pair, automotive & industrial environments
802.3bq~Feb 201640GBASE-T, 40 Gbit/s Ethernet for 4-pair balanced twisted-pair cabling with 2 connectors over 30 m distances

See also[edit]

References[edit]

  1. ^ "Ethernet Prototype Circuit Board". Smithsonian National Museum of American History. Retrieved 2007-09-02. 

External links[edit]