Citrix Systems 10 Benutzerhandbuch

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Client for Macintosh Administrator’s Guide
Reconnecting to Servers after a Disconnection
You can be disconnected from ICA sessions because of unreliable networks, 
highly variable network latency, or range limitations of wireless devices. With the 
automatic client reconnection feature, the client can detect unintended 
disconnections and automatically reconnect users to the affected sessions. 
When this feature is enabled on a machine running Presentation Server, you do 
not have to reconnect manually. Instead, a message box appears indicating that 
automatic reconnection is under way, and the client tries to reconnect until it is 
successful or the user cancels the reconnection attempts. If you require users to be 
authenticated again, a dialog box requesting credentials appears during automatic 
reconnection. Automatic reconnection does not occur if you exit applications 
without logging off.
Please refer to the Presentation Server documentation for information on how to 
implement automatic client reconnection.
Session Reliability
With the session reliability feature, users continue to see a published application’s 
window if the connection to the application experiences an interruption, and no 
message box explaining that the client is trying to reconnect appears for three 
minutes (at which stage the user can cancel the reconnection attempt). For 
example, wireless users entering a tunnel may lose their connection when they 
enter the tunnel and regain it when they come out on the other side. During such 
interruptions, the session reliability feature enables the session window to remain 
displayed while the connection is being restored.
To reduce the likelihood that users continue to click links or type text while the 
connection is being restored, mouse pointers become hourglass icons while the 
application is unresponsive.
To turn session reliability on for a specific connection
1.
In the ICA Client Editor, open the connection file.
2.
From the Connection Properties tab, under Session Reliability, choose 
Enable and enter the port number to which you want to connect. If the 
session reliability feature is enabled, the default port used for session 
communication with the server changes from 1494 to 2598. Please refer to 
the Presentation Server documentation for information on how to change 
the port used for session reliability.
3.
Click Save.