"PrecisionMachinisT" wrote in message
...

"NoOne N Particular" wrote in message
. ..
The spec for CAT5 is 100 meters which is around 330ft. Someone
mentioned
seeing greater distances, and I have too, but I have also seen shorter
runs
that were noting but trouble. It's all in the installation.

For the longer runs, the user didn't know any better, but the analyzer
that
we put on showed an unusually high number of retransmits. One in
particular
was "only" 380 ft and the retransmit rate was about 1 frame in 10. Most
of
the runs that were over 300ft also had high retransmits, but this one
was
the worst. A couple of years later we removed all of that cabling and
had
an entire new CAT5 cable plant installed (CAT5e and CAT6 were not
available
at that time).

For the shorter runs, I remember one run of only about 240 ft was so
bad
that it was unuseable. This was in the brand new cable plant mentioned
about. When the cable installer ran a new cable he found that he had
been
running next to some other cabling that had power among other things
(for
about 30ft). I seem to remember him saying that there was 110v, 220v,
and
408v power line all together but I could be wring on that. He also
found
that the original cable had two kinks in it. No broken wires or
anything,
but kinks are bad. Both of the kinks were in an area that was very
difficult to get wire into (and out of). Fortunately, we had a good
installer and this was corrected before being brought into service. He
actually re-routed the entire cable bundle (about 50 cables).


Ping here shows 0 % packet loss and less than one ms average round trip
time
for four 32 byte packets.

All zeros across the board.

He must of had some real hacks making up those cables and splices.


Oops, all less than ten ms.

--

SVL