John Navas <firstname.lastname@example.org> hath wroth:
>On Fri, 09 Mar 2007 09:41:58 -0800, Jeff Liebermann
><email@example.com> wrote in
>>With 20 access points, a
>>spare radio would be a good idea.
>I'd say radio overlap/redundancy would be an even better idea.
I beg to differ. A few months ago, I posted a rant about a hotel
customer of mine. His solution, prior to my arrival, to coverage
problems was to just add access point after access point until
coverage improved. Instead, he added access point after access point
as his locally generated self-interference increased. At one point,
my guess is about that he had perhaps 30 or more access points
scattered all over the building, pool area, conference rooms, and
lobby. There were several key locations (i.e. lobby) where I could
see about 7 or 8 access points, many of which were on the same
channel. I spent considerable effort removing redundant access points
and replacing omni antennas with directional panels. He's down to
about 10 access points and working quite well.
Overlap and redudancy is a good suggestion, but doing so in an
uncontrolled manner will cause problems. In this case, I have we have
no idea how these 20 access points are arranged or whether adding
redundancy and overlap will constitute an improvement or an added
source of interference. I prefer not to speculate.
In this case, we have one access point that has apparently failed. I
prefer troubleshooting by replacement. If the replacement works, the
problem has been both identified and solved. There are a few used
Cisco 350 AP's on eBay for $35 to $100/ea. Cheap.
Incidentally, the hotel just sent me email asking for a quote on what
it would take to get coverage in the public bathrooms (pool, lobby,
conference rooms, etc). I suspect they really mean cell phone
coverage, but I'm at a loss as to why they would need Wi-Fi coverage
Jeff Liebermann firstname.lastname@example.org
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558