Just for clarity here, both switches were never moved. And since I
installed a new switch and fiber module the connections were reseated on
both units. Now where the switch sits in the NOC it could have gotten
"nudged" as the NOC boys were in  and around the other day looking for
unused network ports on the walls in my area so they were most likely
rummaging around the switch rack and could have done something none of
them want to own up to but first I have to prove there is light at the
end of that cable.

As for old equipment. The switch that was "dead" (which I believe is
still good) was purchased at least 6 to 7 years ago. I replaced it with
a refurbished unit but I trust my supplier. As for dust I never gave
that a thought so I will try that route tomorrow when I do the paper
test.

Thanks again for the insight.

John J. Boris, Sr.
JEN-A-SyS Administrator
Archdiocese of Philadelphia
222 North 17th Street
Philadelphia, Pa. 19103
Tel: 215-965-1714
Fax: 215-587-3525
"Remember! That light at the end of the tunnel
Just might be the headlight of an oncoming train!"

>>> Luke S Crawford <[email protected]> 11/29/2010 4:29 PM >>>
"John  BORIS" <[email protected]> writes:

> So my question is this. IS there any benefit
> (other than an upgrade path) to stay with the fiber between the
switches
> or stay with the copper. The distance between switches is about 150
feet
> as you walk the hall in a straight line, not sure how much cable is
used
> in the wall.

So some of the other people have gone over some of the reasons why
fiber is superior in theory.

However, it sounds like you are using old gear, like I did when I was
using
fiber, and personally, I found fiber, for short runs with old
equipment
to be significantly less reliable than copper.   The reason, for me,
was
twofold.  

1. I was using old hardware that was poorly maintained by the previous

owner, so there was dust, I believe, on the mating surface.
There's only so much compressed air can do.

2. multi-mode fiber pulls out when jostled /much/ more readily than 
cat5/6, and this was in a rack where the clearance between the back 
of the rack and the chain-link was less than the girth of my largest
sysadmin.  

Now, for the reasons other people on the list have stated, I do prefer
fiber for long runs, or through electrically uncertain areas, but my
personal experience?  copper usually wins in terms of reliability, for
the two above reasons.   Of course, if you do fiber /right/ those two
things aren't problems.  But, in the case of me five years ago,
well, I wasn't doing it right, but when I switched to copper, my
problems
in that department largely went away. 

-- 
Luke S. Crawford
http://prgmr.com/xen/         -   Hosting for the technically adept
http://nostarch.com/xen.htm   -   We don't assume you are stupid.  
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