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Abstract: Ethernet local area network operation is specified for selected speeds of operation from
1 Mb/s to 400 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
(PHYs) 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
that 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: 2.5 Gigabit Ethernet, 5 Gigabit Ethernet, 10 Gigabit Ethernet, 25 Gigabit Ethernet,
40 Gigabit Ethernet, 50 Gigabit Ethernet, 100 Gigabit Ethernet, 200 Gigabit Ethernet, 400 Gigabit
Ethernet, AN, attachment unit interface, AUI, Auto-Negotiation, Backplane Ethernet, balanced
cable, data processing, DTE Power via the MDI, EEE, Energy-Efficient Ethernet, EPoC, EPON,
EPON protocol over coax, Ethernet, Ethernet in the first mile, Ethernet Passive Optical Network,
express traffic, Fast Ethernet, FEC, forward error correction, Gigabit Ethernet, IEEE 802.3™,
information exchange, isolation, LAN, local area network, management, MCRS, MDI, media
independent interface, medium dependent interface, MIB, MII, MMF, MPCP, Multi-Channel
Reconciliation Sublayer, multimode fiber, multipoint control protocol, P2MP, PCS, PD, PHY,
physical coding sublayer, Physical Layer, Physical Layer Collision Avoidance, Physical Layer
device, physical medium attachment, physical medium dependent, PLCA, PMA, PMD, PoDL,
PoE, point to multipoint, Power over Data Lines, Power over Ethernet, Power Sourcing Equipment,
Powered Device, PSE, reconciliation sublayer, repeater, RS, single-mode fiber, SMF, type field
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