Ugh...

I used to have this conversation on a monthly basis with co-workers. Many people seem to incorrectly believe that network speeds are measured in base-2 (binary) where in fact they are measured in base-10, just like a hard drive. And, just like misunderstanding of hard drive capcity, network bandwidth is misunderstood to be greater than it actualyl is.... because people percieve bandwidth in the same base as the thing they send through the wire... a thing usually measured in 8-bit bytes, which are NOT 10-bit bytes. The correction of 2-bits per unit byte quickly magnifies to be a pretty significant error. That error is something like 1GbE being actually capable of handling 119 MiB persecond, rather than 125 MiB persecond.