Chapter 2 Configuring Advanced Policies 33
4. To create a new policy in this bank, click the icon for the type of policy or
policy label that you want to add to the virtual server’s bank of policies,
click Insert Policy.
Note that if you want to invoke a policy label without evaluating a policy
rule, select the NOPOLICY “dummy” policy.
5. To configure an existing entry in this policy bank, enter the following:
•Priority: A numeric value that determines either an absolute order of
evaluation within the bank or is used in conjunction with a Goto
expression.
•Expression: The policy rule. Advanced policy expressions are
described in detail in the following chapters. For an introduction, see
“Configuring Advanced Expressions: Getting Started,” on page 39.
•Action: The action to be taken if this policy evaluates to TRUE.
•Goto Expression: Optional. Determines the next policy or policy
bank to evaluate. For more information on possible values for a Goto
expression, see the table, “Entries in a Policy Bank,” on page 29.
•Invoke: Optional. To invoke another policy bank, select the name of
the policy label or virtual server policy bank that you want to invoke.
6. When you are done, click OK.
Invoking or Removing a Policy Label or Virtual Server Policy Bank
Unlike a policy, which can only be bound once, you can use a policy label or a
virtual server’s policy bank any number of times by invoking it. Invocation can
be performed from two places:
• From the binding for a named policy in a policy bank.
• From the binding for a NOPOLICY “dummy” entry in a policy bank.
Typically, the policy label must be of the same type as the policy from wh ich it is
invoked. For example, you would invoke a Responder policy label from a
Responder policy.
Note: When binding or unbinding a global NOPOLICY entry in a policy bank
at the command line, you specify a priority to distinguish one NOPOLICY entry
from another.