In the past, we have always setup wireless access points to use channels 3, 6,
and 11, since these channels are the non-overlapping channels. We have tried
to be careful in spacing out APs and picking one of these three channels where
it seems appropriate to prevent interference from one
We let our Cisco WiSM controllers pick the channels. Works as well as could
be expected with the number of rogues we have, particularly in the dorms.
If using the AMP management platform, you can let it optimize your channels.
And, it is not 3, 6, 11 that are non-overlapping, but 1, 6, 11.
Michael-
You do mean 1, 6, and 11- yes?
-Lee
Lee H. Badman
Wireless/Network Engineer
Information Technology and Services
Syracuse University
315 443-3003
-Original Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:[EMAIL PROTECTED] On Behalf Of Martin Jr.,
We also let our Cisco WiSM select to best channels but we do limit it to
channels 1,6,11.
-Doug
Douglas R. Bentley
University Information Technology
Systems Engineering Group
727 Elmwood Avenue, Suite 132
Rochester, NY 14620
Office: (585) 275-6550
Fax:(585) 273-1013
In Meru you pick the channel but it uses a single channel across the
entire SSID when in virtual cell mode, not per AP.
(this is part of the special sauce that they got beat up for a while
ago by other vendors implying they were breaking the standard)
So we don't have to worry about overlapping
We use Trapeze and let it auto tune both channel and power. Works extremely
well especially if you lose an access point. The surrounding ones fill in the
gap.
Jim
James Pardonek CISSP
Senior Network Admistrator
Purdue University Calumet
- Original Message -
From: The EDUCAUSE
I don't know how big your installation is, but once you get over a dozen
or so AP's, it really is worth getting a wireless LAN controller of some
sort. We have a Cisco 4402 (comments about Cisco/Microsoft and herd
mentality deleted). Managing the AP's manually gets to be a real pain
at that
We used dynamic channel and power settings of Cisco WLC's for a while
until one day for some unknown reason all the channel decided to use 1(may
be an extreme case of wide are interference!). Ever since I manually set
up both Power and Channels. We also have a distributed Antenna system so
it
We have both Meru and Cisco AP's.
For Meru we put each controller on either channel 1 or 11, because it seems
most SOHO routers choose channel 6. In high density locations (auditoriums) we
will put AP's on different channels to increase density.
For the Cisco AP's we enable Radio Resource
Even with controllers (we currently have 9 WiSMs, each of which contains two
controllers), the AMP product is very useful for coordinating the
controllers. We tried the Cisco WCS product (and still have it), but found
the AMP much easier to drive. It will manage both controllers and APs. The
APs
I appreciate all the input about using controller based models and various
software products but given the fact that is not what we have in place I was
really look for more advice on which path to take on what we have.
In our environment there is no centralized budget for wireless, or any other
Prior to having a controller based environment, we used the 1 6 11 method you
describe. We did however stress to the administration the need for a policy
that gave the IT department exclusive access to the wireless airspace. This
gave us the authority to find and remove rogues. It was also the
Michael-
We jumped to lightweight APs at about the 450 AP count. Prior to that,
we did about 50 APs completely manually, with no central management. At
about 50, we did get Cisco's WLSE- which at the time cost us under $10K
in appliance form. We still use this to manage our point to point
Michael,
To answer your question, when we had autonomous APs a couple of years
ago we configured most of them with the least congested channel option
and it worked fine. If anything, it will help to avoid co-channel
interference in the presence of a rogue AP.
Hector Rios
Louisiana State
Martin Jr., D. Michael [EMAIL PROTECTED] 10/16/2008 8:52 AM
In the past, we have always setup wireless access points to use channels
3, 6, and 11, since these channels are the non-overlapping channels.
We have tried to be careful in spacing out APs and picking one of these
three
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