[THIN] Re: Citrix and WLAN
- From: "Greg Reese" <GReese@xxxxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Tue, 24 Jun 2003 16:09:36 -0400
stuff is any device that emits a frequency in the 2.4ghz range. Many =
new cordless telephones are in the 2.4ghz spectrum. Microwave ovens =
emit in that range. Wireless video cameras (x2) run in that range. =
Lots of stuff does, its a crowded spectrum.
Put an 802.11b or g access point on the backside of a room with a =
microwave and good luck getting a signal out of it when someone turns on =
the microwave. 802.11a, no problem. It runs at 5ghz and will not get =
interference from it. We had a problem with our nurses because they =
bought a new 2.4ghz cordless phone for the nurses station. Every time =
they made a call, the wireless connections around the station got =
dropped. Of course they didn't make the association that it was the new =
phone. They just kept calling us that it was down. Imagine how much =
fun it was troubleshooting while they were talking to me on the very =
device causing the problem.
You can get an old proxim rangelan II card from ebay and its tools will =
show you what frequencies are being used. Just plug it in a laptop and =
walk around. If there is anything running in that range, you will see =
the graph spike. It makes a pretty good sniffer for identifying =
interference.
I have the power points on this at home and will email them to you.
Greg
-----Original Message-----
From: Eduard L. Frerking [mailto:elfelf@xxxxxxxxxxx]
Sent: Tuesday, June 24, 2003 3:57 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Citrix and WLAN
Greg,
Please talk to me about the "stuff".
ed
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
> Behalf Of Greg Reese
> Sent: Tuesday, June 24, 2003 6:45 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Citrix and WLAN
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> I normally don't disagree with John but I would go with 802.11a.
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> It runs in the 5ghz spectrum and b and g run in the 2.4ghz spectrum. =
=3D
> Microwaves and a lot of other things run in the 2.4 ghz range and can =
=3D
> account for a lot of interference.=3D20
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> I have got a ton of documentation on this from some classes I went =3D
> through with Proxim. Email me off the list and I will be more than =
=3D
> happy to send them to you.
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> The number of access points you need will vary on all kinds of things. =
=3D
> You will have to test like hell to figure that out.
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> Greg
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> -----Original Message-----
> From: Rowlandson, John [mailto:John.Rowlandson@xxxxxxxxxxxxx]
> Sent: Tuesday, June 24, 2003 2:07 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Citrix and WLAN
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> Mallesons Stephen Jaques
> www.mallesons.com
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> Confidential communication
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> go directly to .g
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> -----Original Message-----
> From: Eduard L. Frerking [mailto:elfelf@xxxxxxxxxxx]
> Sent: Tuesday, 24 June 2003 4:00 PM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Citrix and WLAN
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> I have a major roll out project that has been pass on to me to =3D3D
> implement. I
> work for a school. Every student and every staff member will be =3D3D
> receiving a
> Laptop (already ordered). I will have to roll out approximately 800 =
=3D3D
> Laptops.
> These laptops are expected to connect to our Citrix XP farm. The farm =
is
> balanced and can handle the load. The problem is I need to setup the
> Wireless part. Questions are as follows.
> 1.. Should I go with 802.11g or 802.11a?
> 2.. How many access points do I need without too much sacrificing =
=3D3D
> speed?
> We have classrooms varying from about 20'x30' to 30'x40'. The rooms =
can =3D
> =3D3D
> have
> up to 36 laptops in them running simultaneously. The neighboring room =
as
> well. Rooms are gather in straight lines ranging from 3 to 7 room in a
> specific "wing". Wing are at least 50' from each other. The problem =
=3D3D
> arises,
> in the access point load. Should I put more than one access point in =
=3D3D
> each
> room, if so, how to locate it so that there is not conflicts between =
=3D3D
> rooms?
> >From the reading which I have done and previous experience is not to =
put
> more than about 8 or so computers on any one access point. We =
published =3D
> =3D3D
> the
> desktop. Short animated video clips (up to 30 seconds) are currently =
=3D3D
> used.
> Our wired based in each classroom up to 8 computers and we have no =
=3D3D
> problems
> to speak of. We have 36 classrooms. The final piece of the pie is that =
I
> have just over $1 million this year to get the job done.
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> So far I was thinking of getting a bunch of one of the following? Any =
=3D
> =3D3D
> ideas?
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> Cisco Aironet 1210 Access Point
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> Linksys WAP55AG
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> NetGear Model WG602
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> Of course I will need to purchase matching Ethernet cards for the =
=3D3D
> laptops.
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> Any ideas or suggestions would be greatly appreciated.
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> Eduard L. Frerking
> Network/System Admin
> Capt. Jason M. Dahl Elementary School-FMSD
> San Jos=3D3DE9, CA 95111
> elfelf@xxxxxxxxxxx
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>=20
> ********************************************************
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> Complaints about applications response time - DO SOMETHING ABOUT IT!
> TScale 2.0 improves applications response time and increases terminal
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> Complaints about applications response time - DO SOMETHING ABOUT IT!
> TScale 2.0 improves applications response time and increases terminal
> server capacity. Really get MORE from your existing servers! Free =
eval:
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> For Archives, to Unsubscribe, Subscribe or=20
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This weeks sponsor - RTOSoft TScale=20
Complaints about applications response time - DO SOMETHING ABOUT IT!
TScale 2.0 improves applications response time and increases terminal
server capacity. Really get MORE from your existing servers! Free eval:
http://www.rtosoft.com/enter.asp?id=3D130
**********************************************************
Useful Thin Client Computing Links are available at:
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For Archives, to Unsubscribe, Subscribe or=20
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********************************************************
This weeks sponsor - RTOSoft TScale
Complaints about applications response time - DO SOMETHING ABOUT IT!
TScale 2.0 improves applications response time and increases terminal
server capacity. Really get MORE from your existing servers! Free eval:
http://www.rtosoft.com/enter.asp?id=130
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