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TrevorWhiteFlag for United Kingdom of Great Britain and Northern Ireland

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Is roaming around a multi channel WLAN seamless ??

Hi Folks,
I'm designing a WLAN for an old building with stone walls etc. I'm anticipating that a single Wireless access point is not going to do the job. I understand that a single Wireless Router with ADSL modem could be extended with one or more WAPs (Wireless Access Points). Each of the WAPs (and indeed the router) needs to operate on non overlapping channels which are 5 channels apart, say, 1,6,11.

My question is, given that the above is deployed, if a laptop user roams around the whole wireless network is the switch from channel to channel seamless or would some interaction with the user be required. I'm thinking the DHCP might complain or when one channel drops out of cover the user has to rescan.

I have an existing WLAN but have not ventured into this multiple AP area, I hope you guys can help.

Regards
Trevor
Avatar of Chris Staunton
Chris Staunton
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Trevor,

If cost is NOT an option, check out Cisco for some really cool management of APs, they have a box that will manage all your APs from one location, it is supposed to also tune the APs so that they don't overlap signal etc.

http://www.cisco.com/en/US/netsol/ns621/netbr0900aecd8035a015.html

Cheers,

Chris
Avatar of TrevorWhite

ASKER

Price may be an issue, do you have any knowledge of the multi channel instalations such as that set out in my question?
I am studying the cisco material now.

Regards
Trevor
Avatar of carl_legere
carl_legere

i've designed them this way for a while, wired access points, positioned stratgically.  Use the same encryption key, use ssid brodcast and use the same ssid.  It is advised to use 1,6 &11 like you are doing.

Roaming will be seamless
So it is as I thought. Thanks for that confirmation. I have noticed that 802.11g is distinct from 802.11a with respect to Carrier frequency and number of channels available. I have used 802.11g todate is there any reason to use a/b or even the new un ratified n ??? I apologise for asking a secondary here but thought I'd chance it ;-))

Points will be on their way soon.
use what ever meets your needs, and has cheap hardware.

Couple of doctors' homes I've done I used linksys or buffalo (both on G)
Speeds and throughoput will always be disappointing on wirelss for running a network, but overkill and acceptable for shared internet.
Thanks Carl, points allocated 100% to your self. Have good weekend.

Trevor
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carl_legere

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