IEEE 802.3ah-2004.pdf

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IEEE Std 802.3ah-2004
IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks—
Specific requirements—
Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications
Amendment: Media Access Control Parameters, Physical Layers, and Management Parameters for Subscriber Access Networks


Approved 24 June 2004

Abstract: This amendment to IEEE Std 802.3-2002 as amended by IEEE Std 802.3ae-2002, IEEE Std 802.3af-2003, IEEE Std 802.3aj-2003, and IEEE Std 802.3ak-2004 combines a minimal set of extensions to the IEEE 802.3 Media Access Control (MAC) and MAC Control sublayers with a family of Physical (PHY) Layers. These Physical Layers include optical fiber and voice grade copper cable Physical Medium Dependent sublayers (PMDs) for point-to-point connections in subscriber access networks. This amendment also introduces the concept of Ethernet Passive Optical Networks (EPONs), in which a point to multi-point (P2MP) network topology is implemented with passive optical splitters, along with optical fiber PMDs that support this topology. In addition, a mechanism for network Operations, Administration and Maintenance (OAM) is included to facilitate network operation and troubleshooting. To support these innovations, options for unidirectional transmission of frames are provided for 100BASE-X, 1000BASE-X, 10GBASE-R, 10GBASE-W, and 10GBASE-X.

Keywords: Ethernet in the First Mile, EFM, Ethernet Passive Optical Network, EPON, Ethernet over DSL, Multi-point MAC Control, MPMC, Operations, Administration, Maintenance, OAM, full duplex MAC, P2MP, P2P, 100BASE-LX10, 100BASE-BX10, 1000BASE-LX10, 1000BASE-BX10,1000BASE-PX10, 1000BASE-PX20, 10PASS-TS, 2BASE-TL, last mile