Chapter 1 Introduction to Policies and Expressions 7
About Policy Bindings

A policy is associated with, or bound to, an entity that enables the policy to be

invoked. For example, you can bind a policy to request-time evaluation that

applies to all virtual servers. A collection of policies that are bound to a particular
bind point constitutes a policy bank.

Following is an overview of different types of bind points for a policy:

Request time global. A policy can be available to all components in a feature at
request time.
Response time global. A policy can be available to all components in a feature at
response time.
Request time, virtual server-specific. A policy can be bound to request-time processing
for a particular virtual server. For example, you can bind a request-time policy
to a cache redirection virtual server to ensure that particular requests are
forwarded to a load balancing virtual server for the cache, and other requests
are sent to a load balancing virtual server for the origin.
Response time, virtual server-specific. A policy can also be bound to response-time
processing for a particular virtual server.
System The action is implied. For the
Authentication function, it is
either Allow or Deny. For
Auditing, it is Auditing On or
Auditing Off.
Not used.
DNS The action is implied. It is
either Drop Packets or the
location of a DNS server.
Not used.
SSL Offload The action is implied. It is
based on a policy that you
associate with an SSL virtual
server or a service.
Not used.
Compression Determine the t ype o f
compression to apply to the
data.
Not used.
Content Switching The action is implied. If a
request matches the policy, the
request is directed to the virtual
server associated with the
policy.
Not used.
Cache Redirection The action is implied. If a
request matches the policy, the
request is directed to the origin
server.
Not used.

Use of Actions and Profiles in Different NetScaler Features

Feature Use of an Action Use of a Profile