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

Kristofer Sigurdsson ks at rhi.hi.is
Fri Feb 11 07:21:23 EST 2005


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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