lost the "crunch"

[James Knott]

Steve Harvey wrote:
> http://www.ertyu.org/steven_nikkel/ethernetcables.html
>   
I got a chuckle from  a couple of lines

"+Note: The cross over cable layout is suitable for 1000Base-T
operation, all 4 pairs are crossed."

Last I heard, gigabit doesn't care about cross over or not, as all 4
pairs are bi-directional.

"Cut the cable to length - make sure it is more than long enough for
your needs. Remember, an end to end connection should not extend more
than 100m (~328ft). Try to keep cables short, the longer the cable
becomes the more it may affect performance, usually noticable as a
gradual decrease in speed and increase in latency."

It's take a very long cable to make much of a difference in latency. 
The speed of light in a vacuum is 300M / uS.  The velocity factor of
cable is in the vicinity of 0.70 so that would work out to over 200M /uS
in cable or 0.5 uS for 100M.  You'd be hard pressed to find a networking
situation, where a latency on the order of 1 uS would be significant.


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