Editing IEEE 802.3 (section)

{{Short description|Collection of standards for wired Ethernet}}
{{about|the standards working group|Ethernet frame data format|Ethernet frame}}

'''IEEE 802.3''' is a [[working group]] and a collection of standards defining the [[physical layer]] and [[data link layer]]'s [[media access control]] (MAC) of wired [[Ethernet]]. The standards are produced by the working group of the [[Institute of Electrical and Electronics Engineers]] (IEEE). This set of standards generally applies to [[local area network]]s (LANs) and has some [[wide area network]] (WAN) applications. Physical connections are made between network nodes and, usually, various network infrastructure devices ([[Ethernet hub|hub]]s, [[Network switch|switches]], [[router (computing)|router]]s) by various types of copper cables or [[optical fiber]].

802.3 standards support the [[IEEE 802.1]] network architecture.

802.3 also defines a LAN access method using [[carrier-sense multiple access with collision detection]] (CSMA/CD).