ICA/RDP Listeners Test

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

This is why, if a user to the Microsoft RDS server complains of the inaccessibility of the server, administrators should first check whether the 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 Microsoft RDS server

Agent deploying the test : An internal agent

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

Configurable parameters for the test
Parameters Description

Test period

This indicates how often should the test be executed.


The host for which the test is to be configured.


Refers to the port used by the Microsoft RDS server.

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 of 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
Yes 0
No 1


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.