[THIN] Re: Limits of Latency
- From: "Jan Broucinek" <tinybeetle@xxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Thu, 25 Sep 2003 17:00:32 -0400
It depends on the app. In our experience, If the user is typing, the max would
be about 150-200ms. If it is a click and select check-boxes type app, then
perhaps as high as 400-600ms would be acceptable. Satellite will NEVER be any
better than 600ms due to the distance involved and the speed of light.
Disconnects are generally caused by lost packets, you need to see how many
retries and packets you lose on the average connection.
----- Original Message -----
From: Christopher_Wilson@xxxxxxxxxxxxxx
To: thin@xxxxxxxxxxxxx
Sent: Thursday, September 25, 2003 4:39 PM
Subject: [THIN] Limits of Latency
Hi, list.
Is there any documentation from Citrix or another source that sets a bound on
how much latency an ICA session will tolerate?
I have a few new locations that have recently been set up our WAN/Satellite
guy to use a DirectWay satellite connection to the internet then on into Nfuse
and my MF 1.8 farm. The problem is that these locations experience frequent
disconnects from ICA sessions to the point of rendering Citrix unusable. (No
problems surfing mind you.) A ping from them to us returns with a latency of
850-1000ms. The best I remember hearing from this list and elsewhere, latency
beyond 300-400ms degrades performance and can cause disconnects. Is this
accurate? What is the max latency tolerance by your experience?
Also, I have already tweaked the recommended ICA time-out and TCP
retransmission settings with no results for this problem. Is there any other
tweaking that might help?
Thanks in advance,
Christopher Wilson
Citrix Administrator
BJ Services Network Support
713.895.5681
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