Citrix Systems 9.2 Benutzerhandbuch

5.

Configure the expression as described in 

.

A number of functions, including the following, can require an advanced 
expression that is not part of a policy:

•

Integrated Caching selectors. You define multiple non-compound 
expressions (selectlets) in the definition of the selector. Each selectlet is in 
an implicit logical AND relationship with the others.

•

Load Balancing. You configure an expression for the TOKEN method of 
load balancing for a load balancing virtual server. 

•

Rewrite actions. Expressions define the location of the rewrite action and 
the type of rewriting to be performed, depending on the type of rewrite 
action that you are configuring. For example, a DELETE action only uses a 
target expression. A REPLACE action uses a target expression and an 
expression to configure the replacement text.

•

Rate-based policies: You use advanced expressions to configure Limit 
Selectors. You can use these selectors when configuring policies to throttle 
the rate of traffic to various servers. You define up to five non-compound 
expressions (selectlets) in the definition of the selector. Each selectlet is in 
an implicit logical AND with the others.

From the NetScaler command line, enter the command for configuring the object 
that requires an advanced expression. Following is an example of configuring a 
cache selector. Note that line breaks in the following example are for readability. 
Do not insert line breaks in the command:

Following is an equivalent command that uses the more readable q delimiter, as 
described in 

: