ICA/RDP Listeners Test

The listener component runs on the Virtual Apps/Terminal server and is responsible for listening for and accepting new ICA/RDP client connections, thereby allowing users to establish new sessions on the Virtual Apps/Terminal server. If this listener component is down, users may not be able to establish a connection with the Virtual Apps server!

This is why, if a user to the Virtual Apps server complains of the inaccessibility of the server, administrators should first check whether the Citrix listener component is up and running or not. The ICA/RDP Listeners test helps administrators perform this check. This test tracks the status of the default listener ports and reports whether any of the ports is down.

Target of the test : A Citrix Virtual Apps server

Agent deploying the test : Internal agent

Outputs of the test : One set of outputs for every listener port configured

Configurable parameters for this test
  1. TEST PERIOD - How often should the test be executed
  2. Host - The host for which the test is to be configured.
  3. port - The port at which the host listens
  4. session ids – The default listener ports - 65536,65537,65538 – will be displayed here by default. You can override this default specification by adding more ports or by removing one/more existing ports. 
Measurements made by the test
Measurement Description Measurement Unit Interpretation
Is listener down?:

Indicates whether/not this listener port is down.


This measure reports the value Yes if the listener port is down and No if the port is up and running. The numeric values that correspond to these measure values are as follows:

Measure Value Numeric Value






By default, this measure reports the above-mentioned Measure Values to indicate the status of a listener port. However, the graph of this measure will represent the same using the numeric equivalents only.