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Saturday, August 26, 2017

Clock Rate or Clocking

Clock rate/Clocking is actual line speed and is configured on serial links in DCE side of network. When you set the clock rate for a serial interface, you are setting the speed of the interface, in other words, actual rate of data transfer. It has to do with the physical speed of the circuit (typically based on TDM architectures) where your clock cycle is 'x' times per second (deriving bandwidth of 'x' bits per second).  You can't send at speeds greater than your clock rate as this is a physical limiting!

The clock rate is used to match the clocks on the receiver and transmitter on remote and local router. The two routers need to sync up their clock perimeters in order to decode the packets coming on their interfaces.


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