Juniper POLICY MANAGEMENT - CONFIGURATION GUIDE V11.1.X Configuration Manual page 160

JUNOSe 11.1.x Policy Management Configuration Guide
Example: Hierarchical Policy Quick Configuration
To configure hierarchical policies for interface groups, use the following steps:
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Example: Configuring Hierarchical Policies
The configuration in Figure 8 on page 135 requires four parent group resources for
each atm5/0.1, atm5/0.2, and atm5/0.3 attachment. The rate-limit instance R1 is
referenced by C1 and packet flows from C1 to EPG1 to EPG2.
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Example: Hierarchical Policy Quick Configuration
Loops The system performs basic checks to prevent formation of loops when
external parent groups refer to other external parent groups. Also, you cannot
chain together more than four rate-limits in a hierarchy.
Asynchronous Policy Parameter Configuration You can individually configure
the policy parameter configuration in an interface and the policy attachments.
If a policy parameter is not configured in the interface before a policy is attached,
the value configured in Global Configuration mode for this parameter is used.
You can later change the parameter value for the interface.
Asynchronous Parent Group Rate Limit Configuration You can configure an
external parent group without a rate-limit-profile reference. In this case, the
system doe not invoke a rate-limit for the external parent group (even if other
nodes point to it) and calls the next node in the hierarchy.
Parent Group Reference The configuration fails if you do not first create an
external parent group before it is referenced elsewhere.
In Global Configuration mode, create rate limit profiles of the type hierarchical.
In Global Configuration mode, create policy parameters of the type hierarchical.
In Global Configuration mode, create external parent groups.
In Global Configuration mode, create a policy list and use the external parent
groups and policy parameters to create a hierarchy of rate limits.
In Interface Configuration mode, attach the policy list to the interface.
(Optional) In Interface Configuration mode, specify values for the hierarchical
policy parameters used by the policy list.