[THIN] Re: Ramifications of UDP in MFXP farm
- From: Rob Slayden <rslayden@xxxxxxxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Wed, 24 Mar 2004 18:47:33 -0800
Steve,
We have our Winterms auto-start and launch a published application, complete
with a scripted login. Users are then presented with the web-based
application (our pub app is currently Netscape 4.78 but is being "updated"
to support IE 6.01SP1), which prompts them for a login.
This works great in MF 1.8 using the MB and 2 BB IP addresses and TCP. My
concern is with the upgrade of the entire farm to MFXP. I have been testing
in the lab for 2 weeks and all seems okay to support the current terminal
configuration, although it requires the UDP Browse Listeners to function
correctly once the Interop mode is unchecked.
I was hoping someone was running an MFXP farm in the same manner and are
satisfied with the performance of session initiation and noting that the ZDC
in this mode (UDP Browse Listener) was able to adequately resolve all
requests for pub app routing. I am about to roll this out to the 4000-user
production environment and I am a concerned about the effects of potentially
hundreds of users smackin' the ZDC in a short time period.
I'll post results as I deploy and hopefully it will be another Citrix MFXP
success story!
BTW, do you know Mike Rice, SE for Wyse out of Chandler? He is our SE and a
great resource!
Thanks!
Rob
24 Hour Fitness, Inc.
-----Original Message-----
From: Steve Greenberg [mailto:steveg@xxxxxxxxxxxxxx]
Sent: Wednesday, March 24, 2004 5:24 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Good point, I should have added that you need to "Respond to ICA client
broadcast". I don't know of any reason why this would not work perfectly
well in production....
BTW, are you launching individual published apps from the WYSE =
terminals,
or, a desktop session?
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
Behalf
Of Shonk, Joe - Perot
Sent: Wednesday, March 24, 2004 2:14 PM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
You also have to set the Farm/Server to respond to ICA Client broadcast
messages. If you are running MF 1.8 on the same broadcast domain, the =
Farm
setting will be disabled this settings and you wil have to resort to
Interoperability mode.
In addition you will want to enable the UPD Listener (assuming your =
running
TCP/IP and not IPX, Netbios)
Joe
-----Original Message-----
From: Rob Slayden [mailto:rslayden@xxxxxxxxxxxxx]
Sent: Wednesday, March 24, 2004 12:12 PM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Steve,
We do have Wyse Management software, both Remote Administrator 3000 and
Rapport, but you cannot push configurations to terminals with Rapport =
unless
they are on firmware version 369.20 or above and you cannot manage =
multiple
subnets simultaneously with RA3K. At least half or more of our 4000
terminals are 289.14 so they would have to have firmware upgrades to be
Rapport-manageable.
The terminals are currently configured for TCP and 3 IP addresses (MB =
and 2
BBs), but unless the ZDC or the MF servers being "hit" by the terminal =
has
UDP Browser Listener enabled, the MF server does not respond to directed =
TCP
access by the terminals. At least, that is the behaviour I am observing =
in
the lab in testing Interoperability mode and then converting to "native"
MFXP mode. If I access the ZDC from the termial in TCP mode and it does =
NOT
have UDP Browser Listener enabled, it does not seem to respond. If you =
are
saying it is supposed to respond to that, then maybe there is some other
configuration parameter that is not correctly configured. I have
Interoperability Off, UDP Browse Listener enabled ONLY on the ZDCs, MFXP
servers only (MF 1.8 servers are powered off). I tested from multiple
versions of firmware (i.e., mutiple client versions) and even in ICA =
7.1, it
did not find the pub apps in TCP mode without UDP enabled.
Am I doing something wrong here?
Thanks!
rob
-----Original Message-----
From: Steve Greenberg [mailto:steveg@xxxxxxxxxxxxxx]=20
Sent: Wednesday, March 24, 2004 10:50 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Ramifications of UDP in MFXP farm
Do you have WYSE management software? Can you add an IP address or =3D =
Server
name for polling the farm (i.e. in ICA syntax TCPBrowser=3D3DZDC)? I =
think =3D
this will work without needing UDP available since it won't try to
broadcast, rather, it will ask the ZDC directly for it's list of =
published
apps....
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=3D20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
=3D
Behalf Of Rob Slayden
Sent: Wednesday, March 24, 2004 11:13 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Ramifications of UDP in MFXP farm
I am upgrading a 27-server NT 4.0-TSE/MF 1.8 farm to W2K3/MFXPe and I =
=3D have
been testing the migration in the lab. It appears that I will still =3D
require the ZDCs (farm will have 2 zones) to maintain UDP (Server-->MF =
XP =3D
Settings
-->ICA Browser - Create browser listener on UDP network). In =
testing,=3D20
-->when
in "native" mode (interoperability off), if this setting is unchecked, =
=3D my
terminals doing directed TCP access for published applications fail to =
=3D
find the master browser (ZDC). As long as the box is checked on the =
ZDCs,
the terminals can not only get the list of pub apps, but they can also =
be
routed to MF servers that are not configured as UDP browser listeners.
As I do not want to change the configuration on 4000 Wyse terminals to
update the Server Location and Protocol from TCP to TCP+HTTP, =3D =
particularly
since it would require firmware upgrades to half of them, what are the
ramifications to running my farm with the UDP browser listeners =3D =
configured
on the ZDCs? How will this affect performance and session initiation
response time? I do not know how many users are connecting/disconnecting =
=3D
at any given moment, but I know a typical user load ranges anywhere from =
=3D
2100 to 2800 users, though the potential user base is closer to 4000.
Any thoughts or suggestions for ensuring optimal performance in my
environment would be greatly appreciated.
Thanks,
Rob
24 Hour Fitness
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Emergent OnLine is the leading server-based computing consulting =
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firm in the nation. Emergent OnLine delivers expert=20
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