Product Documentation

Features Page

Jun 05, 2013

This page has enable/disable toggles for the appliance’s features, plus a master enable/disable toggle called Traffic Processing.

Figure 1. Part of the Features page

In normal use, this page is helpful mostly for disabling features, since many features require more configuration than simply toggling their state from disabled to enabled. Most features should be enabled on the relevant page under the Configuration menu.

Traffic Processing

This is the master enable/disable toggle. When disabled, all features of the Appliance are disabled and all traffic passes through without modification or traffic shaping.

Traffic Acceleration

This toggle enables and disables the acceleration engine.

Traffic Shaping

This toggle enables and disables the traffic-shaping engine.

CIFS Protocol Optimization

Sets the CIFS/SMB/Windows Filesystem acceleration mode. Options are Enabled for all CIFS, allowing full acceleration, Enabled for SMB1 Only, which accelerates the SMB1 protocol (used through Windows XP and Windows Server 2003), Enabled for SMB2 Only, which accelerates the newer SMB2 protocol (Vista/Windows 7/Windows Server 2008), or Disabled.

Group Mode

Can be used to disable group mode, if enabled.

High Availability

Can be used to disable high-availability mode, if enabled.

ICA Multi-Stream

Enables ICA multi-stream acceleration support. If enabled, multi-stream ICA sessions will be negotiated when both the client and server are multi-stream-enabled. Otherwise, single-stream ICA sessions will be used.

If multi-stream, multi-port ICA is enabled on your XenApp servers, you must also modify the “ICA” service class to include the additional ports you have defined for multi-port mode.

MAPI Cross-Protocol Optimization

Allows MAPI session data to match non-MAPI session data in the compressor.


SCPS is a TCP variant used in satellite communication and similar applications. The Appliance can accelerate SCPS connections if this option is selected.

The main practical difference between SCPS and the default Appliance behavior is that SCPS-style selective negative acknowledgements (SNACKs) are used instead of standard selective acknowledgements (SACKs). These two methods of enhancing data retransmissions are mutually exclusive, so if the Appliance on one end of the connection has SCPS enabled and one does not, retransmission performance will suffer. This condition will cause an SCPS Mode Mismatch alert.

We recommend that, if you must mix SCPS-enabled Appliances with non-SCPS enabled Appliances, that you deploy them in such a way that mismatches do not occur. This can be done with IP-based service class rules or by always deploying the Appliances so that accelerated paths contain matched pairs rather than odd numbers of units.

Secure Partner

Duplicates the functionality of the Partner State toggle on the Configuration: Secure Partners page.


Duplicates the functionality of the SNMP Status button on the Logging/Monitoring: SNMP tab.

SSH Access

Duplicates the functionality of the SSH Access Enable/Disable button on the Configuration: Administrator Interface: SSH Access page.

SSL Optimization

Duplicates the functionality of the SSL Optimization Enable/Disable button on the SSL Encryption page.

Syslog Support

Duplicates the functionality of the Send to Syslog Server checkbox on the Configuration: Logging/Monitoring: Syslog Server tab.

User Data Store Encryption

Duplicates the functionality of the Enable Encryption button on the Configuration: SSL Encryption page.


Duplicates the functionality of the Enable button on the Configuration: Advanced Deployments: WCCP tab.