High density doesn't surprise me very much. We try to track general student
wireless device, and this last year and this we had a decent amount (I forget
the percentage, but it was non-trivial) that had three wireless devices per
person - a laptop, table, and smart phone each. Throw in a wireless game
console or media device, and you can easily have far more devices than people.
The fact that many of them are always-on, low power, and low speed is just
an added bonus.
As for rogue devices, banning all wireless printers would be a good start...
Frank Sweetser fs at wpi.edu | For every problem, there is a solution that
Manager of Network Operations | is simple, elegant, and wrong.
Worcester Polytechnic Institute | - HL Mencken
On 2/24/2013 1:27 PM, Ian McDonald wrote:
I'm quite surprised that people are experiencing too many devices per ap,
as that implies either incredibly dense student packing, or a relatively
small number of access points in an area.
We've seen some remarkably attenuating walls and floors, but given
contruction details (or best guess given age), that can be overcome. We
don't expect through-floor propagation in any modern structure, due to the
wrinkly-tin floors, but we also discovered that one of our buildings was
once an X-Ray clinic ;)
I'm personally not keen on putting equipment into student rooms, as getting
back in when it goes wrong tends to be a challenge, as it's ever more
onerous getting access.
So, what can we do about rogue devices? Suggestions on the back of an
estwing fire-ax please.
-- ian -----Original Message----- From: Julian Y Koh Sent: 24/02/2013,
17:32 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN]
Residence Hall Wireless survey
On Feb 22, 2013, at 14:00 , Julian Y Koh <kohs...@northwestern.edu> wrote:
OK, there's no need for everyone to respond - as I wrote before, we're
going to be sending the total/aggregate results to the entire list. :)
And here we are! Total of 56 responses. Here are the highlights. Please
post any additional questions here and I'll see if any of the data will
help. Thanks again to everyone!!
1.) Primary equipment vendor: Cisco 55.4% Aruba 26.8% Meru 7.1%
Juniper 5.4%
2.) Initial AP placements: Hallways/Common Areas 94.6% Individual
Resident Rooms 5.4%
3.) Experiencing issues? Yes 85.7% No 14.3%
4.) Kinds of problems? Too many client devices per AP 64.6% Rogue wireless
devices 58.3% High signal attenuation 45.8% Low signal
attenuation 14.6%
5.) Options considered to address issues? Adding APs 84.6%
Relocation APs 73.1% Changing Vendors 17.3%
6.) New AP placements: Individual Resident Rooms 68.0%
Hallways/Common Areas 46.0%
7.) Mount types: Ceilings 89.1% Walls
34.5% Embedded Wall Boxes 10.9%
8.) Success at remediation? Very Successful 45.2% Moderately
Successful 31.0% Not Successful 2.4%
-- Julian Y. Koh Manager, Network Transport, Telecommunications and Network
Services Northwestern University Information Technology (NUIT) 2001
Sheridan Road #G-166 Evanston, IL 60208 847-467-5780 NUIT Web Site:
<http://www.it.northwestern.edu/> PGP Public
Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html>
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