Thursday, October 7, 2010

Gigabit Ethernet


  • Although the functional principles of Gigabit Ethernet are the same as Ethernet and Fast Ethernet i.e. CSMA/CD and the Framing format, the physical outworking is very different. One difference is the slot time. The standard Ethernet slot time required in CSMA/CD half-duplex mode is not long enough for running over 100m of copper, so Carrier Extension is used to guarantee a 512-bit slot time.

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