IEEE Standard for Ethernet
Sponsored by the
LAN/MAN Standards Committee
IEEE
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IEEE Computer Society
IEEE Std 802.3™-2015
(Revision of
IEEE Std 802.3-2012)
IEEE Std 802.3™-2015
(Revision of
IEEE Std 802.3-2012)
IEEE Standard for Ethernet
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 3 September 2015
IEEE-SA Standards Board
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2016 by The Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 4 March 2016. Printed in the United States of America.
IEEE and 802 are registered trademarks in the U.S. Patent & Trademark Office, owned by The Institute of Electrical and
Electronics Engineers, Incorporated.
PDF: ISBN 978-1-5044-0078-7 STD20500
Print: ISBN 978-1-5044-0079-4 STDPD20500
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Abstract: Ethernet local area network operation is specified for selected speeds of operation from
1 Mb/s to 100 Gb/s using a common media access control (MAC) specification and management
information base (MIB). The Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
MAC protocol specifies shared medium (half duplex) operation, as well as full duplex operation.
Speed specific Media Independent Interfaces (MIIs) allow use of selected Physical Layer devices
(PHY) for operation over coaxial, twisted pair or fiber optic cables, or electrical backplanes.
System considerations for multisegment shared access networks describe the use of Repeaters
which are defined for operational speeds up to 1000 Mb/s. Local Area Network (LAN) operation is
supported at all speeds. Other specified capabilities include: various PHY types for access
networks, PHYs suitable for metropolitan area network applications, and the provision of power
over selected twisted pair PHY types.
Keywords: 10BASE; 100BASE; 1000BASE; 10GBASE; 40GBASE; 100GBASE; Fast Ethernet;
10 Gigabit Ethernet; 40 Gigabit Ethernet; 100 Gigabit Ethernet; attachment unit interface; AUI;
Auto Negotiation; Backplane Ethernet; data processing; DTE Power via the MDI; EPON; Ethernet;
Ethernet in the First Mile; Ethernet passive optical network; Fast Ethernet; Gigabit Ethernet; GMII;
IEEE 802.3™; information exchange; local area network; management; medium dependent
interface; media independent interface; MDI; MIB; MII; XGMII; PHY; physical coding sublayer;
Physical Layer; physical medium attachment; PMA; Power over Ethernet; repeater; type field;
VLAN TAG
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