Essay on 10 Gigabit Ethernet Standard

859 Words May 6th, 2012 4 Pages
10 Gigabit Ethernet Standard
Christopher Burch
PROF. K. Jones
CIS 175 – Intro to Networking
March 4, 2011


10 Gigabit Ethernet Standard
From its inception more than 25 years ago, Ethernet has adapted to meet the increasing loads of packet-based networks. Because of its proven low implementation cost, reliability, and relative simplicity of installation and maintenance, Ethernet’s usage has grown to the point that nearly all voice, video, and data traffic on the Internet begins or ends with an Ethernet connection. Further, as the need for ever-faster network speeds has increased, Ethernet has been adapted to handle these higher speeds, as well as the surges in volume demand that are apart of them. The IEEE
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Since 10 Gigabit Ethernet is a full-duplex only technology, it does not need carrier-sensing multiple-access with collision detection (CSMA/CD) protocol used in other Ethernet technologies. In every other respect, 10 Gigabit Ethernet matches the original Ethernet model. At the physical layer, an Ethernet physical layer device connects the optical or copper media to the MAC layer through network interface cards. Ethernet architecture further divides the physical layer into three sublayers: Physical Medium Dependent , Physical Medium Attachment ,and Physical Coding Sublayer . PMDs provide the physical connection and signaling to the medium; optical transceivers, for example, are PMDs. The PCS consists of coding (e.g., 64B/66B) and a serializer or multiplexor. The IEEE 802.3ae standard defines two PHY types: the LAN PHY and the WAN PHY. They provide the same functionality, except the WAN PHY has an extended feature set in the PCS that enables connectivity with SONET STS-192c/SHD VC-4-64c networks.
In today’s marketplace Ethernet technology is now the most widely used technology for high-performance LAN environments. Businesses around the world have invested cabling, equipment, processes, and training in Ethernet. In addition,

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