Understanding Session Services - NEC Express5800 Series User Manual

Chapter 7 Establishing a Server Environment
2.

Understanding Session Services

Before you use the information in this section to configure your Citrix ICA, Microsoft RDP, VMware Horizon, and NEC Client
Management Option (CMO) session services, be sure you understand and use the following guidelines:

General guidelines
The Thin-client session services are made available by servers hosting Citrix ICA, Microsoft RDP, VMware Horizon,
and NEC Client Management Option (CMO) software products.

Citrix ICA guidelines
Independent Computing Architecture (ICA) is a three-tier, server-based computing technology that separates the
logic of an application from its user interface. The ICA client software installed on the thin client allows the user to
interact with the application GUI, while all of the application processes are executed on the server. For information
about configuring ICA, see Chapter 7, "2.1 Configuring Citrix ICA Session Services".

Microsoft RDP guidelines
Remote Desktop Protocol (RDP) is a network protocol that allows a thin client to communicate with the remote
desktop service running on Windows Server 2008 or 2012 over the network. For information about configuring RDP,
see Chapter 7, "2.2 Configuring Microsoft RDP Session Services".

VMware Horizon guidelines
VMware Horizon is a desktop management solution that allows the system administrator to configure the desktop
and control user access. Client software securely connects users to centralized virtual desktops, back-end physical
systems, or terminal servers through the PCoIP (PC over IP) or RDP protocol. For information about configuring
VMware Horizon, see Chapter 7, "2.3 Configuring VMware Horizon Session Services".

NEC Client Management Option (CMO) guidelines
NEC Client Management Option (CMO) consists of components such as CMO Manager, CMO Configuration Console,
CMO Virtual PC Agent, and CMO Terminal Agent.
For information about configuring NEC Client Management Option (CMO), see Chapter 7, "2.4 Configuring NEC Client
Management Option (CMO) Services".
 You must purchase enough client licenses to support the total concurrent thin client load
Tips
placed on the server farm. A failure to connect when all client seats are occupied does not
represent a failure of equipment.
 If session services are used on a Windows Server OS, a Remote Desktop Services Client Access
License (RDS-CAL) server must also reside somewhere accessible on the network. The server
will grant a temporary (120-day) license on an individual device basis. Beyond the temporary
(120-day) license, you must purchase RDSCALs and install them on the RD license server (you
will not be able to make a connection without a temporary or permanent license).
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2. Understanding Session Services
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