We are beginning a project to cover our entire campus (including every
nook and cranny plus all green space) with wireless. We have selected a
vendor, management tools, etc. However, I am having some problems with
power choices. I am hoping that some of you can be of help to me.
I am not really
I've got quite a bit of experience with PoewrDsine. The 3001 individual
units (6 months ago) had severe qa problems. I had to literally replace
over 400 of them. The individual ones do hook together nicely but make
a hell of a mess when it comes to powering / racking them.
Their mid-span
We have used PowerDsine for close to 6 years: 1, 6 and 12 port unit. Yet
one unit to be replaced! We had APs and switches die from lightning but
not power injectors. Yes, they are simple devices, but still! At the time
these were not managed units, but new solution is more expensive, and
hopefully
One more thing.. PoE is negotiated. If the device doesn't need power,
the mid-span wont send it. So your point below about patch panels wont
apply.
-Emerson
-Original Message-
From: John Watters [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 04, 2006 12:28 PM
To:
John,
Over the summer of '05 we rolled wireless out to cover every hill and
dale and had the same power issues. In our most populated areas, we
used Cisco POE Switches or POE Blades, depending on the existing
infrastructure. In the less dense area we evaluated PowerDsine, Panduit
and Systimax
John,
We've looked at several solutions and in the end decided to
go with a 24port PoE switch. The main issue came
down to being able to power cycle the AP by enabling and
disabling the switch port. It has saved numerous on site visits.
We have a VoIP pilot going on and using the switch kept
Title: Spectrum Analyzer for interference detection
Greetings listers,
We have a suspected interference problem in a particular classroom that causes all the wireless connections to drop at the same time. There are two APs in the classroom, and only one other AP in the building (that can
Title: Spectrum Analyzer for interference detection
Ron,
I would look for a micro wave oven or a
2.4 gig cordless phone near your classroom.
Dwight
Dwight L. Hazen
Indiana University, UITS
Bloomington, In. 47408-7378
812-855-5367
-Original Message-
From:
Or maybe a DOS attack. Not only can an attacker unauthenticate a user
but some Wireless management applications have defense mechanisms
built in to protect their networks.
An attacker can disrupt service from the protocol level. Remember that
we talked about establishing associations to use
Technically, this is correct, but in the environment I would suspect
either a 2.4GHz frequency hopping cordless phone (look for the
Panasonic's - they work well as cordless phones, are cheap, and will
reliably knock off 802.11b/g connection). The microwave oven is another
good source of
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