Re: SSID for multiple access points

From: Helio Diamant - MS/MVP, Mobile Devices (helio_at_nospam.pocketpcfreak.com)
Date: 07/07/04

  • Next message: Helio Diamant - MS/MVP, Mobile Devices: "Re: SSID for multiple access points" 
    Date: Wed, 7 Jul 2004 11:18:58 +0200

    Actually, for proper roaming, the APs MUST have the same SSID. The channels
    will be different and distant by at least 2 to avoid interference. The
    biggest the difference between channel numbers, better. 

    -- 
Helio Diamant - MS/MVP Mobile Devices
http://www.pocketpcfreak.com
"Pete Mainwaring" <peter.mainwaring@virgin.net> wrote in message
news:64d77c87.0407062347.10d96592@posting.google.com...
> "Sooner Al" <SoonerAl@somewhere.net.invalid> wrote in message
news:<ujMAtP6YEHA.3988@tk2msftngp13.phx.gbl>...
> > The AP SSIDs, I believe, should all be the same but the individual APs
should be set to different
> > channels...
> >
> > -- 
> >     Al Jarvi (MS-MVP Windows Networking)
> >
> > Please post *ALL* questions and replies to the news group for the mutual
benefit of all of us...
> > The MS-MVP Program - http://mvp.support.microsoft.com
> > This posting is provided "AS IS" with no warranties, and confers no
rights...
> >
> > "Indy Tech" <IndyTech@att.UNSPAM.net> wrote in message
> > news:t5FGc.1730$aj.384@newssvr16.news.prodigy.com...
> > > howdy all,
> > >
> > > Let me start off by saying I have searched online for answers to this
> > > question, but apparently haven't been able to discover the right
syntax to
> > > turn up my answers.  With that said, feel free to post abusive or
stupid
> > > responses and I will suffer them with good graces.  :)
> > >
> > > I am deploying a WLAN to cover 3 warehouses.  We will be using this
network
> > > to keep Compaq iPaq's in contact with an inventory application.  I did
the
> > > initial setup, and gave each of the APs distinct SSID names.  The
iPaqs
> > > cannot roam between them
> > >
> > > As this client is 120 miles away, I wanted to establish before I drove
back
> > > down there:  Can I give all 3 APs the same SSID name, or do they need
to be
> > > unique?
> > >
> > > Thanks in advance for all information!
> > >
> > > ------------------------------------------------------------
> > > Jim Peterson, A+, Net+, MCSE
> > > Indy Tech
> > >
> > > To e-mail me, remove everything between
> > > "att" and ".net" in my e-mail address.
> > >
> > >
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>
> Al is correct. All the AP's can have the same SSID, but any AP that is
> near another AP should be on a different channel. This part is
> probably the most challenging as you can only use 3 channels to be
> sure that there is no overlap.
>
> I implemented a wireless solution in a corporate HQ using about 70
> AP's. Every AP used the same SSID but AP's nearest each other on the
> same floor used different channels as far as possible. There were
> generally 4 AP's per floor, so two AP's that were diagonally opposite
> had to use the same channel. The AP transmit power was set to 1mw, and
> we didn't suffer from any problems. We were able to roam around the
> whole building with a laptop connected to the WLAN and maintain our
> network connection (constantly running a ping -t to a target address,
> plus other more demanding tests as well).
>
> The transmit power settings in a warehouse may need to be set
> differently though, depending on whether there is high racking or not,
> what type of materials are stored, etc.
>
> Pete
  • Next message: Helio Diamant - MS/MVP, Mobile Devices: "Re: SSID for multiple access points"

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