The Daring Dufas wrote in
:


It has to do with the varying twist of the pairs. When I run a
certification test on network cables, the separate pairs check
out at different lengths then I get an average length from the
test equipment. If you run a Cat6 Gigabit connection, all four
pairs are used for the data as opposed to only two pair when a
10/100 connection is used. Good wiring practice demands that no
cable ties are cinched real tight on any network cables or bundles
of network cables. Sharp bends in Cat5/6 can also alter the signal
capabilities of the network cables. I can test a length of network
cable with my certifier, get a good reading then make a sharp 90°
bend in the cable and it will fail the test.



I've seen many large-company installations with cable ties reefed as tight
as they'll go, and with sharp bends around corners. I've often wondered if
their employees have network problems.


--
Tegger