BASE-TX, 100BASE-T4, and 100BASE-FX Fast Ethernet at 100Mbps (with autonegotiation). 802.3x Full-duplex and flow control; also incorporates DIX framing, SO there's no longer a DIX/802.3 split. 802.3y 100BASE-T2 100Mbps over low-quality twisted-pair. 802.3z 1000BASE-X Gigabit Ethernet over fiber at 1 Gbps. 802.3-1998 A revision of the base standard that incorporates the preceding amendments and errata. 802.3ab 1000BASE-T Gigabit Ethernet over twisted-pair at 1Gbps. 802.3ac Maximum frame size extended to 1522 bytes (to allow Q-tag). The Q-tag includes 802.1Q virtual LAN (VLAN) information and 802.1p priority information. continued Chapter 6 Local Area Networking Table 6.2 802.3 Ethernet Standards (continued) Ethernet Standard Date Completed Description 802.3ad Link aggregation for parallel links. 802.3-2002 A revision of the base standard that incorporates the three prior amendments and errata. 802.3ae 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-SW, 10GBASE-LW, and 10GBASE-EW 10Gbps Ethernet over fiber. 802.3af Power over Ethernet. 802.3ah Ethernet in the first mile. 802.3ak 10GBASE-CX4 10Gbps Ethernet over twin-axial (twinax) cable. 802.3-2005 A revision of the base standard that incorporates the four prior amendments and errata. 802.3an In progress 10GBASE-T 10Gbps Ethernet over unshielded twisted-pair (UTP). 802.3ap In progress Backplane Ethernet (1Gbps and 10Gbps over printed circuit boards). 802.3aq In progress 10GBASE-LRM 10Gbps Ethernet over multimode fiber. 802.3ar In progress Congestion management. 802.3as In progress Frame expansion. LANs. Long-haul Ethernet is now being applied to metropolitan area networks (MANs) and wide area network (WANs), as well. (MAN and WAN applications of Ethernet are discussed further in Chapter 11, "Optical Networking.") The 802.3 standards are not complete yet; the 100Gbps Ethernet prototypes are in the early stages, and they promise all the benefits of a ubiquitous and inex- pensive technology for use in metro and wide area service provider networks. Due to the pervasive use