We do use single channel everywhere, except in high density areas in
which we will add another layer/stack of APs on a different channel.
Diana Cortes, CISSP, CWNA
University of Miami
IT - Telecommunications
On Aug 19, 2009, at 6:03 PM, Chris Drever wrote:
Diana,
Does stacking/layering mean that you are not using the single
channel single
SSID configuration that Meru is known for?
Chris Drever - PSU Networking
-----Original Message-----
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Cortes, Diana
Sent: Wednesday, August 19, 2009 5:40 PM
To: [email protected]
Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room
We have 3 Meru APs covering 2 classrooms (capacity 100 each) where
students
use the WiFi to take exams online. We have had up to 90 users at a
time
using channel stacking/layering without a problem.
Diana Cortes, CISSP, CWNA
University of Miami
IT - Telecommunications
-----Original Message-----
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[email protected]] On Behalf Of Rick Brown
Sent: Wednesday, August 19, 2009 9:03 AM
To: [email protected]
Subject: Re: [WIRELESS-LAN] Large numbers of clients in one room
We actually solve the issue by using 802.11a for high density
environments. We still provide G coverage but our policy has been
that
if you want guaranteed throughput and coverage in a classroom
environment then an 11A AP should be installed for every 20-25
students. When we first implemented the policy there were a few
issues
because so many laptops came 11b/g only. But we're seeing more and
more
bring in tri-mode
laptops so it's been less of an issue. I agree with the statement
below. If necessary use only 3 11G AP's to get the folks that only
have
11G cards but make sure you have enough 11A AP's to handle everyone.
Rick
Ken LeCompte wrote:
First, I don't think 50 users in a room is much to worry about for
any
pair of modern access points. Unless the users are all going to be
high throughput users. For large open lecture halls being setup with
the highest throughput in mind my recommendation regardless of
equipment would be:
1. 3 channel(1,6,11) layout only with 2.4Ghz radios NO 4
channel(1,4,8,11) layout in open spaces
2. Ceiling mount antennas and use directional patch antennas NOT
omni-directional antennas
3. Turn power down and don't be too worried about RF absorption,
since
it will actually help focus your client radios onto the best access
point.
--
Richard E. (Rick) Brown
Network Systems Engineer
Communication Technologies
Office of Information Technology
N.C. State University
(919) 515-5489 office
(919) 515-1641 fax
(919) 601-1651 cell
[email protected]
http://www.ahecta.org/
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