[c-nsp] Question about Cisco AIR-AP 1200 series access point?

[Church, Chuck]

That is correct, but on most recent Cisco APs, you can set the allowed speeds to only allow 'G' devices to connect.  'Speed' command does it.  Removing the 1, 2, 5.5, and 11 mbit speeds will keep all 'B' devices out.


Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch at netcogov.com
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-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Voll, Scott
Sent: Friday, February 11, 2005 10:45 AM
To: jordi
Cc: cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Question about Cisco AIR-AP 1200 series access point?

AND my understanding with the G is that if someone has a B card, everyone goes down to B standard on that access point.



-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Kristofer Sigurdsson
Sent: Friday, February 11, 2005 4:21 AM
To: jordi
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Question about Cisco AIR-AP 1200 series access point?

Hi,

jordi, Fri, Feb 11, 2005 at 07:42:50PM +0800 :
> Hi All,
> 
> I am not sure How many users can be supported concurrently? I am working on a project with more than 100 people in one floor. How many APs should be needed?

This all depends on the quality of service you wish to provide.  If
you have the b version, you have 11 Mbit/s, which means actual throughput
of max 6 Mbit/s.  If you have, say, 10 users, each one gets 600 Kbit/s.  If
you have 30 users, each one gets 200 Kbit/s...
The 802.11x wireless standards work in timeslots, so even if a user is idle,
he still gets his timeslot, which is why you have to divide the bandwidth
like this.
If you have the 54 Mbit/s version (g), you have about 22 Mbit/s of actual
throughput, which, with 30 users means about 700 Kbit/s.

I usually try not to have more than 30 users per access point.

-- 
Kristófer Sigurðsson         | Tel: +354 525 4103 / MSN: ks at rhi.hi.is
Netsérfr./Network specialist | Reiknistofnun HÍ/University of Iceland
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