[Server-devel] Technical questions

Eustace Amah eamah at slb.com
Thu Jan 21 10:18:24 EST 2010

One of the problem that am experiencing now is that I configured the 15 APs with same ESSID, different channels(1,6,11) shared among them and located all around the school. Remember that the APs are configured with different subnet from the lease of DHCP server but when more than 3 XO tries to connect it knocks everyone out immediately. The APs are PoE enabled. The models are Cisco Small Business Model WAP4410N. I have increased the power to the APs.

Any solution to this?

-----Original Message-----
From: Martin Langhoff [mailto:martin.langhoff at gmail.com] 
Sent: Thursday, January 21, 2010 1:09 PM
To: James Cameron; akleider at sonic.net; Reuben K. Caron; taiwo.alabi; Eustace Amah; server-devel at lists.laptop.org; Emeka Lewis Nwankwo; kene.ijezie
Subject: Re: [Server-devel] Technical questions

On Thu, Jan 21, 2010 at 12:28 PM, Martin Langhoff
<martin.langhoff at gmail.com> wrote:
> 3 - Define how many users you can connect to an AP -- some APs have
> "configured" hard limits in the software they ship. If you have to
> guess, assume ~40 as the upper limit.

Let's reword that as: assume 30, which is where most APs start having
problems. If you are using OpenWRT, you can probably support 40. If
you have tested your AP, then you'll know for real.

In general, it is very hard to go over 40 active nodes per channel;
this is mainly due to limitations of "sharing the commons" of the
radio spectrum.

High end APs may be able to operate different antennas in different
channels -- so one AP acts as if it were 3, working on 1, 6 and 11.


 martin.langhoff at gmail.com
 martin at laptop.org -- School Server Architect
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 - don't get distracted with shiny stuff  - working code first
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