L-PDF Overview
Local policy decision functionality for application-related services adds support for a new process that regulates collection of statistics related to applications and application groups and tracking of information about dynamic subscribers and static interfaces. This functionality is collectively named the local policy decision function (L-PDF); it is currently supported only on Juniper Networks MX Series Ethernet Services routers equipped with Multiservices DPCs. The application identification (APPID) service defines the applications and how they are grouped. The application-aware access list (AACL) service defines the applications and application groups for which statistics are collected for a specific user or interface. The L-PDF configuration defines the way in which the statistics are output.
To configure properties for statistics output, include the policy-decision-statistics-profile statement at the [edit accounting-options] hierarchy level. A new traceoptions configuration is available at the [edit system services local-policy-decision-function] hierarchy level. To configure a dynamic profile to attach a specified service set to an interface, include the service statement at the [edit dynamic-profiles profile-name interfaces interface-name unit logical-unit-number family inet] hierarchy level. To attach a service set to a static interface, include the service-set service-set-name statement at the [edit interfaces interface-name unit logical-unit-number family inet service (input | output)] hierarchy level. For more information on service sets, see Service Set Properties.
The following related operational commands are supported:
- show services local-policy-decision-function flows
- show/clear services local-policy-decision-function statistics
- show/clear services application-aware-access-list statistics
For more information on the CLI configuration, see the Local Policy Decision Function. For more information on the operational commands, see the Junos System Basics and Services Command Reference.
