What are Citrix Virtual Channels?


Citrix XenApp / XenDesktop is a Client Server solution meaning that in order for users to launch applications and desktops, a client software called Citrix Receiver needs to be installed on the end point device (Windows workstations, Thin Clients, MAC machines, iOS devices, Android Devices, etc). The server side also needs to have Citrix software installed usually called XenApp/XenDesktop

One of the most important components in this Client Server scenario is the use of Virtual Channels

Once the application or Server Desktop is launched using Citrix Receiver, one of its components opens virtual channels to allows various components to communicate between the two ends of this spectrum:

USB

Printers

Audio

Scanners

Client Drive Mapping

Smart Card

Flash Redirection

Display

Keyboard

Mouse

Etc.

A good reading material available from Citrix is this CTX article:

These virtual channels use the Transport Protocol in the OSI model.

On another article I will get into more details about them

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