the beginning never ends...
key pin outs...
straight through 1-1, 2-2 and 3-3, 6-6
xover 1-3, 2-6 and 3-1, 6-2
straight is easy, crossed; odd to odd, even to even... with auto- mdix it doesn't matter (automatic medium dependent interface crossover senses tx & rx)
switches detect duplex settings through auto-negotiation using flp (fast link pulses) without auto-negotiation, cisco switches will default to half duplex on 10/100 links, or full for 1000. hard setting the port disables auto-negotiation
for csma/cd here:
http://insearchofthecert.blogspot.com/search/label/csma%2Fcd
icnd2 notes for review, here:
http://insearchofthecert.blogspot.com/search/label/icnd2
forward/filter here:
http://insearchofthecert.blogspot.com/2011/10/forwardfilter-conundrum.html
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