networking - Networking 101 CSEE W4840 Prof Stephen A...

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Networking 101 CSEE W4840 Prof. Stephen A. Edwards Columbia University Spring 2009 Networking 101 – p.
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Ethernet Started in about 1976 at Xerox PARC IEEE Standard 802.3 Carrier-sense multiple access/carrier detect protocol: 1. Listen to the cable 2. If nobody’s there, start talking 3. If someone interrupts, stop, and retry after a random time Networking 101 – p.
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10Base-5 “Thicknet” Shared coax bus with “vampire tap” tranceivers Yellow color suggested by the 802.3 standard From http://www.turkcenet.org/yerel_htm/10base5.htm Networking 101 – p.
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10Base-2 “Thinnet” 50-Ohm coax segments with BNC “T” connectors Coax invariably black From http://www.answers.com/topic/10base2 Networking 101 – p.
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10Base-T and 100Base-T Put the shared medium in a hub: a star topology. Everybody uses it now. Star topology Choice of colors From http://www.asante.com/downloads/legacy/fh200bugra.pdf and http://www.connectworld.net/cables_u/patch-cable-manufacturer.html Networking 101 – p.
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networking - Networking 101 CSEE W4840 Prof Stephen A...

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