> On Sep 16, 2016, at 5:47 PM, Antonio Carlini <a.carl...@ntlworld.com> wrote:
>> ...
> I've never encountered anyone claiming that a 10Mb/s network means anything 
> other than ten million bits per second.

I once worked for a company that said Ethernet switch ports were 20 Mb/s 
because they are 10 Mb/s each way.

But with that oddball exception, your statement is accurate for networks.  In 
other domains, not so much.  Fibre Channel is marketed as x Gb/s (x = 1, 2, 4, 
8, 16...) but in fact x is GBaud (rounded slightly; the original rate is 1.0625 
GBaud).  So the real speed is 800, 1600, ... Mb/s.

By Fibre Channel standards, the original Ethernet would have been called 20 
Mb/s (since it's 20 MBaud, being Manchester encoded), and Fast Ethernet would 
be 125 Mb/s (since it's 125 MBaud, with 4b/5b coding) and so on.  But 
networking people aren't so confused (or whatever).


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