10BaseT clock rate for max throughput

[babis]

not sure if anyone might know this, (thou i noticed some network gurus out there)

anyone familiar what should the clock rate (in MHZ) of 10BaseT ethernet be to have max throughput of 10MBps ?

and if possible.. how u came up with the result, I can't seem to relate both of them together..

Thanks in advance....

[Krome]

You attempting to over-clock your NIC card? :) hehehe

[HoagieKat]

...but 10 million bits per second, isn't the clock rate 10MHz?

Hoagz

[Tim Dorr Veteran]

Clock rate of your card/cable is independant of your actual throughput. In fact, you'll be lucky to get exactly 10Mbps or 100Mbps on a lan becuase of degredation of signal (Cat5e is your friend :D ), so, while the actual bandwidth is quite high, it's a limit of physics :p

[babis]

Thanks for the replies

I think i figured it out:

The clock speed for Manchester encoding always matches the data speed. Thus, for 10Mbps Ethernet the clock rate is 10MHz.

Funny fact, if we used a 100BaseT to ensure 100Mbps, it turns out that fast ethernet uses a different scheme code

coding scheme called 4B5B, 4 bits every 5 clock periods.

Thus, (5 cycles/4 bits) *(100million bits) = 125Million cycles = 125Mhz