Ethernet
In early 1970’s, Xerox Corporation introduced a different networking concept called Ethernet. The thick coaxial media system was the first media system specified in the original Ethernet standard of 1980. Today most sites use twisted-pair media for connections to the desktop. Ethernet is designed to run on a single transmission line to which all stations are connected. As with token ring, Ethernet is peer-to-peer; however no monitoring device is requires. Unlike token ring, Ethernet does not require that stations wait for a token to be passed before transmitting. Stations are able to connect directly to one another and pass data any time there is no activity on the network. The 10-Mbps Ethernet media varieties include the original thick coaxial system, as well as thin coaxial, twisted-pair, and fiber optic systems. The most recent Ethernet standard defines the new 100-Mbps Fast Ethernet systems that operate over twisted-pair and fiber optic media.There are several LAN technologies in use today, but Ethernet is by far the most popular. Industry estimates indicate that as of 1994 over 40 million Ethernet nodes had been installed worldwide. The widespread popularity of Ethernet en
The 100BASE-TX and 100BASE-FX media standards used in Fast Ethernet are both adopted from physical media standards first developed by ANSI, the American National Standards Institute. The ANSI physical media standards were originally developed for the Fiber Distributed Data Interface (FDDI) LAN standard (ANSI standard X3T9.5), and are widely used in FDDI LANs. The third part of the identifier provides an indication of the segment type. The "T4" segment type is a twisted-pair segment that uses four pairs of telephone-grade twisted-pair wire. The "TX" segment type is a twisted-pair segment that uses two pairs of wires and is based on the data grade twisted-pair physical medium standard developed by ANSI. The "FX" segment type is a fiber optic link segment based on the fiber optic sures that there is a large market for Ethernet equipment, which also helps keep the technology competitively priced.
Some topics in this essay:
CSMA/CD Thick,
Ethernet LAN,
Fast Ethernet,
Xerox Corporation,
ANSI FX,
TX FX,
FDDI LAN,
fiber optic,
Institute ANSI,
thick coaxial,
FDDI LANs,
media system,
media varieties,
segment type,
ethernet standard,
fast ethernet,
ethernet signals,
ethernet media varieties,
10-mbps ethernet,
twisted-pair fiber,
twisted-pair fiber optic,
,
thick coaxial media,
physical media standards,
signals signals carried,
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Approximate Word count = 1388
Approximate Pages = 6 (250 words per page double spaced)
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