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Citrix XenApp Performance Essentials

You're reading from   Citrix XenApp Performance Essentials A practical guide for tuning and optimizing the performance of XenApp farms using real-world examples

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Product type Paperback
Published in Aug 2013
Publisher Packt
ISBN-13 9781782170440
Length 126 pages
Edition 1st Edition
Tools
Concepts
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Author (1):
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Luca Dentella Luca Dentella
Author Profile Icon Luca Dentella
Luca Dentella
Luca Dentella is an IT architect working for an Italian consulting company, Sorint.LAB. He graduated in Telecommunication Engineering from the Polytechnic University of Milan, and he specialized in Windows and Virtualization technologies, becoming both a Microsoft and a VMware Certified Professional. Over the last 7 years, he has worked mainly for ING Direct, Italy, where he helped to design, develop, and evolve the IT infrastructure of the bank. Some projects he was involved in include call center virtualization, design of bankshop infrastructures, outsourcing part of the back office, and insourcing the core banking backend. In the past, he worked as a Java/C# developer. Now, he leverages his programming skills to write scripts and programs to automate administrative tasks.He designs, implements, and administers XenApp farms for different customers. He's the author of Citrix XenApp Performance Essentials, Packt Publishing. You can visit Luca's blog at http://www.lucadentella.it.
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Table of Contents (12) Chapters Close

Citrix XenApp Performance Essentials
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
1. Designing a Scalable XenApp Infrastructure FREE CHAPTER 2. Monitoring and Improving Server Performances 3. Optimizing Session Startup 4. Improving End User Experience 5. Optimizing for WAN Links Index

Optimizing the ICA protocol

The ICA protocol is a proprietary protocol designed by Citrix and is used for client/server communication in XenApp and XenDesktop. It runs over TCP port 1494 but it may be encapsulated in CGP (Common Gateway Protocol) over TCP port 2598. You'll learn the importance of CGP later in this chapter.

Note

Citrix offers a service-centric WAN optimization solution, with physical and virtual appliances, named NetScaler Branch Repeater.

ICA Virtual Channels

The ICA protocol comprises virtual channels, as shown in the following diagram. A virtual channel consists of a driver, running on the client side, which communicates with a server-side application. It transports data for redirected peripherals (keyboard, printer, and so on) or for Citrix functionalities (clipboard, licensing, and so on). A couple of channels are also available for Original Equipment Manufacturers (OEMs).

Virtual Channels in ICA protocol

Virtual Channel Priorities

The ICA protocol implements an internal...

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Authors (1)

Profile icon Luca Dentella
Luca Dentella
Luca Dentella is an IT architect working for an Italian consulting company, Sorint.LAB. He graduated in Telecommunication Engineering from the Polytechnic University of Milan, and he specialized in Windows and Virtualization technologies, becoming both a Microsoft and a VMware Certified Professional. Over the last 7 years, he has worked mainly for ING Direct, Italy, where he helped to design, develop, and evolve the IT infrastructure of the bank. Some projects he was involved in include call center virtualization, design of bankshop infrastructures, outsourcing part of the back office, and insourcing the core banking backend. In the past, he worked as a Java/C# developer. Now, he leverages his programming skills to write scripts and programs to automate administrative tasks.He designs, implements, and administers XenApp farms for different customers. He's the author of Citrix XenApp Performance Essentials, Packt Publishing. You can visit Luca's blog at http://www.lucadentella.it.
Read more
See other products by Luca Dentella
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