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## RADIUS and Profile Configuration for Hierarchical Policies

You can use profiles to configure policy parameters. There is currently no RADIUS VSA support for policy parameters. Each reference to an external parent group and the chain of references from that group to other parent groups in a series requires one parent group resource for each reference and each attachment of the policy containing these references.

The rule that applies to external parent group resource count is: one resource per (interface, policy attachment type, policy name, external parent group name, parameter name) tuple; interface is the interface where the policy is attached and policy attachment type is the type of policy attachment.

A rate-limit instance for the external parent groups is created for each hierarchical aggregation node, which is a combination of (slot, direction, parent group name, parameter value) tuple; where slot is the slot number, direction is ingress or egress. A rate-limit resource will be consumed for each instance created.

If at least one policy attachment that uses an external parent group reference has statistics enabled, then statistics for the rate-limit configured within the external parent group is enabled. Each hierarchical aggregation node requires five statistics resources.

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