The XenApp Server Layer
As already mentioned, the DDC is based on the Citrix Presentation Server (i.e., XenApp) technology. This component uses the IMA service of XenApp to communicate with other DDCs in the farm, with the License server, and the Datastore. The use of the XenApp technology also ensures that the XenDesktop deployment benefits from the efficiencies associated with application streaming and virtualization.
Using the tests mapped to XenApp Server layer, you can be promptly alerted to unusually high IMA traffic, and slowdowns in application enumerations/resolutions.
Figure 1 : The tests mapped to the XenApp Server layer