Instruction manual

Chapter 1: Introduction to the NetScaler 9000 Series
NetScaler 9000 Series Installation and Configuration Guide - Volume 1 1-13
NSICG60_JAN05
resources become available. Because the surge of traffic has not been passed
to the server, the server resources are preserved assuring all users of a better
and more consistent experience.
1.5.2.6 Priority Queuing
When a site is in a surge condition and clients are contending for access to
server resources, the NetScaler 9000 system can prioritize user request to
ensure that the most important traffic is serviced first. Priority can be
established based on requested URLs, cookies or a variety of other factors.
The NetScaler 9000 system places requests in a three-tier queuing system
based on their configured priority, enabling business-critical transactions to
flow smoothly even if unexpected surges or site attacks occur. Priority
queuing enables continuous delivery of the most important requests, even
when a site is under attack or overloaded.
1.5.2.7 SureConnect™
SureConnect ensures application responsiveness even when servers are
working at capacity or applications are experiencing processing delays. By
providing real-time estimates of Internet response times, interactive priority
queuing, and guaranteed content delivery, SureConnect can dramatically
improve the real and perceived availability of a site by eliminating the gap
between your customer's expectations and their browsing experience.
1.5.3 Application Optimization Features
The NetScaler 9000 system includes the following traffic optimization
features:
z Compression
z TCP Off Load
z Client Keep-alive
z TCP Buffering
z Consolidated Logging
z Application Caching
z TCP Compression