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ICA Client Access Test
A Citrix environment is a shared environment in which multiple users connect to a Citrix XenApp server from remote terminals using the ICA protocol. One of the key factors influencing user experience in such an environment is the latency seen by the users when connecting to the server. High network latencies or packet losses during transmission can cause significant slow-downs in request processing by the server. Hence, monitoring latencies between the server and individual client terminals is important.
The IcaClient test is executed by the eG agent on a Citrix XenApp server. This test auto-discovers the users who are currently logged on to the server and the IP address from which they are connecting to the Citrix server. For each user, the test monitors the quality of the link between the client and the Citrix server.
Using this test, an administrator can identify user sessions that are being impacted by high latencies or by excessive packet drops. In some cases, a Citrix server may regard a user session as active, even though the network link connecting the user terminal to the Citrix server has failed. The IcaClientTest alerts administrators to such situations.
This test is disabled by default. To enable the test, go to the enable / disable tests page using the menu sequence : Agents -> Tests -> Enable/Disable, pick the desired Component type, set Performance as the Test type, choose the test from the disabled tests list, and click on the < button to move the test to the ENABLED TESTS list. Finally, click the Update button.
Target of the test : A Citrix XenApp server
Agent deploying the test : An internal agent
Outputs of the test : One set of outputs for every user currently connected to the Citrix server
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Measurement | Description | Measurement Unit | Interpretation |
---|---|---|---|
Number of user sessions: |
Indicates the current number of sessions for a particular user |
Number |
The value 0 indicates that the user is not currently connected to the Citrix server. |
Avg network latency: |
Indicates the average delay between transmission of a request by the agent on a Citrix server and receipt of the response back from the user terminal. |
Secs |
Comparing the value of this measure across users will enable administrators to quickly and accurately identify users who are experiencing higher latency when connecting to a Citrix server. |
Min network latency: |
Indicates the minimum delay between transmission of a request by the agent on a Citrix server and receipt of the response back from the user terminal. |
Secs |
A significant increase in the minimum round-trip time is often a sure sign of a poor link between the server and a user's terminal. |
Packet loss: |
Indicates the percentage of packets lost during data exchange between the Citrix server and the user terminal. |
Percent |
Comparing the value of this measure across users will enable administrators to quickly and accurately identify users who are experiencing slowdowns because of poor performance on the network links between their terminals and the Citrix server. |
Note:
Issue the following command at the prompt:
regsvr32 c:\windows\system32\icaperf.dll