LAN
Introduction: History of Ethernet
Ethernet
Ø 1973 : Xerox invents Ethernet (3 Mbps)
Ø 1982: Ethernet Standards b/w vendors (10Mbps)
Ø 1995: Fast Ethernet emerges (100 Mbps)
Ø 2000: Gigabit Ethernet emerges (1000 Mbps)
Ø 2002: 10 Gigabit Ethernet emerges (10000 Mbps)
Ø 2005: 100 Gigabit Ethernet emerges (100000 Mbps)
Ethernet
Distance and Speed: -
CSMA/CD
CSMA/CD is a set of rules governing how you talk on an
Ethernet network
Ø Carrier: - The Network Signal
Ø Sense: - The ability to
detect. (Somebody send/receive the data)
Ø Multiple Access: - All device
has equal access
Ø Collision: - What happens if two
devices send at once.
Ø Detection: - How the computer handle
collision when they happen.
Methods: -
Ø Unicast: - one to one
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPrjhcD5Zfor2qLhpOBehyphenhyphenStBL-1ohtmloeoIvGNXSujemILUBo6J91IOtfP49PHtZLcovZcSwNsk-dWyCCM0jthtjklcU2ykkEgJFnY1rCwh6kLZdk3MPr_U2oGrGDl-AsHL1_RdrKe4I/s640/6.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqFDvLR1WwtyT5PaLObR77YETCxqpVbfoPeocmt-G148-s4m8r-khtYhYouRk2_AC_mM3tIh_Ne3_PyEhGx2AvNu9S9o-noylQG5Six8d8IJeJjesdHkUBAFwpuht4hyphenhyphenLZrNaFuWTNWi5l/s640/vlcsnap-00001.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfoY2IMtLvCjSdhMkJJE-uXI2gWWvG0XDOS0M0PvKxRyGZs5a36z1ge3XpwZqd-kZM6Q5NMvZcFFUJg7MX59KUNGQvgAJrh8J1hlW_3b4r1WXkP0DjNQT-45ZXGIunEGLu8nF3SvdEsvPf/s640/vlcsnap-00002.jpg)
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