IEEE 802.3
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 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
| Ethernet Standard | Date | Description |
|---|---|---|
| Experimental Ethernet |
1973[1] | 2.94 Mbit/s (367 kB/s) over coaxial cable (coax) bus |
| Ethernet II (DIX v2.0) |
1982 | 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. |
| IEEE 802.3 standard | 1983 | 10BASE5 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. |
| 802.3a | 1985 | 10BASE2 10 Mbit/s (1.25 MB/s) over thin Coax (a.k.a. thinnet or cheapernet) |
| 802.3b | 1985 | 10BROAD36 |
| 802.3c | 1985 | 10 Mbit/s (1.25 MB/s) repeater specs |
| 802.3d | 1987 | Fiber-optic inter-repeater link |
| 802.3e | 1987 | 1BASE5 or StarLAN |
| 802.3i | 1990 | 10BASE-T 10 Mbit/s (1.25 MB/s) over twisted pair |
| 802.3j | 1993 | 10BASE-F 10 Mbit/s (1.25 MB/s) over Fiber-Optic |
| 802.3u | 1995 | 100BASE-TX, 100BASE-T4, 100BASE-FX Fast Ethernet at 100 Mbit/s (12.5 MB/s) w/autonegotiation |
| 802.3x | 1997 | Full Duplex and flow control; also incorporates DIX framing, so there's no longer a DIX/802.3 split |
| 802.3y | 1998 | 100BASE-T2 100 Mbit/s (12.5 MB/s) over low quality twisted pair |
| 802.3z | 1998 | 1000BASE-X Gbit/s Ethernet over Fiber-Optic at 1 Gbit/s (125 MB/s) |
| 802.3-1998 | 1998 | A revision of base standard incorporating the above amendments and errata |
| 802.3ab | 1999 | 1000BASE-T Gbit/s Ethernet over twisted pair at 1 Gbit/s (125 MB/s) |
| 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 | Link aggregation for parallel links, since moved to IEEE 802.1AX |
| 802.3-2002 | 2002 | A revision of base standard incorporating the three prior amendments and errata |
| 802.3ae | 2002 | 10 Gigabit Ethernet over fiber; 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-SW, 10GBASE-LW, 10GBASE-EW |
| 802.3af | 2003 | Power over Ethernet (15.4 W) |
| 802.3ah | 2004 | Ethernet in the First Mile |
| 802.3ak | 2004 | 10GBASE-CX4 10 Gbit/s (1,250 MB/s) Ethernet over twinaxial cables |
| 802.3-2005 | 2005 | A revision of base standard incorporating the four prior amendments and errata. |
| 802.3an | 2006 | 10GBASE-T 10 Gbit/s (1,250 MB/s) Ethernet over unshielded twisted pair (UTP) |
| 802.3ap | 2007 | Backplane Ethernet (1 and 10 Gbit/s (125 and 1,250 MB/s) over printed circuit boards) |
| 802.3aq | 2006 | 10GBASE-LRM 10 Gbit/s (1,250 MB/s) Ethernet over multimode fiber |
| P802.3ar | Cancelled | Congestion management (withdrawn) |
| 802.3as | 2006 | Frame expansion |
| 802.3at | 2009 | Power over Ethernet enhancements (25.5 W) |
| 802.3au | 2006 | Isolation requirements for Power over Ethernet (802.3-2005/Cor 1) |
| 802.3av | 2009 | 10 Gbit/s EPON |
| 802.3aw | 2007 | Fixed an equation in the publication of 10GBASE-T (released as 802.3-2005/Cor 2) |
| 802.3-2008 | 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. |
| 802.3az | 2010 | Energy Efficient Ethernet |
| 802.3ba | 2010 | 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 | Increase Pause Reaction Delay timings which are insufficient for 10 Gbit/s (workgroup name was 802.3bb) |
| 802.3bc | 2009 | Move and update Ethernet related TLVs (type, length, values), previously specified in Annex F of IEEE 802.1AB (LLDP) to 802.3. |
| 802.3bd | 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. |
| 802.3.1 | 2011 | 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 | Provide 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). |
| 802.3-2012 | 2012 | A revision of base standard incorporating the 802.3at/av/az/ba/bc/bd/bf/bg amendments, a corrigenda and errata. |
| 802.3bj | June 2014 | 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 | 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 | 100G/40G Ethernet for optical fiber |
| 802.3bp | 2014 | 1000BASE-T1 – Gigabit Ethernet over a single twisted pair, automotive & industrial environments |
| 802.3bq | ~Sep 2016[2] | 25G/40GBASE-T for 4-pair balanced twisted-pair cabling with 2 connectors over 30 m distances |
| 802.3bs | ~ 2017 | 400 Gbit/s Ethernet over optical fiber using multiple 25G/50G lanes |
| 802.3bt | ~ 2017 | 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 | 100BASE-T1 – 100 Mbit/s Ethernet over a single twisted pair for automotive applications | |
| 802.3-2015 | 2015 | 802.3bx – a new consolidated revision of the 802.3 standard including amendments 802.2bk/bj/bm |
| 802.3by | ~Sep 2016 | 25 Gbit/s Ethernet[3] |
| 802.3bz | ~Aug 2017[4] | 2.5 Gigabit and 5 Gigabit Ethernet over Cat-5/Cat-6 twisted pair – 2.5GBASE-T and 5GBASE-T |
See also
- IEEE 802
- IEEE 802.11, a set of wireless networking standards
- IEEE 802.16, a set of WiMAX standards
- IEEE Standards Association
References
- ↑ "Ethernet Prototype Circuit Board". Smithsonian National Museum of American History. Retrieved 2014-10-31.
- ↑ IEEE P802.3bq 25G/40GBASE-T Trending Timeline (PDF), IEEE, p. 14.
- ↑ P802.3by 25 Gb/s Ethernet Task Force, IEEE.
- ↑ P802.3bz 2.5G/5GBASE-T Task Force PAR (PDF), IEEE.
External links
- The IEEE 802.3 Working Group
- Get IEEE 802.3 LAN/MAN CSMA/CD Access Method—Download 802.3 specifications.
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