Cisco ASR 9000 Series Configuration Manual page 320

Disconnect Action Handler
The disconnect action handler is called to disconnect a subscriber. For a subscriber disconnect, the PRE
informs the Policy Plane Session Manager (PPSM) to notify all clients about the subscriber disconnect. The
PPSM reports back to the PRE to complete the disconnection. The PRE puts the subscriber in the disconnect
state. The PRE also cleans-up the record history data that stores policy execution history and the control
block containing the subscriber label. When PRE processing is done, control is returned to the PPSM for
further processing.
Activate Action Handler
The activate action handler enables local dynamic templates or remote AAA services on the subscriber's
configuration. The results of this action are either immediate or asynchronous. The PRE gathers information
like the AAA method list name, template type, and template name and sends to the SVM for processing.
The SVM returns the control after completing template processing, and the PRE resumes processing the
action list from the place it had stopped. The configuration example is as follows:
1 activate dynamic-template <template-name> [aaa list <list-name>]
Deactivate Action Handler
The deactivate action handler disables local dynamic templates or remote AAA services from the subscriber's
configuration. The result of this action is asynchronous. The PRE collects information like AAA list, template
type, and template name and sends to the SVM. to request it to not apply the service. The AAA list is used
to derive a key used in SVM. SVM returns control after completing template processing, and the PRE restarts
processing the action list from where it had stopped. The configuration example is as follows:
1 deactivate dynamic-template <template-name> [aaa list <list-name>]
Set Timer and Stop Timer Action Handlers
The set timer action handler sets an active named timer for a defined time period on the subscriber session.
The stop timer stops an active named timer on the subscriber session. Enabling the set timer action handler
allows the service provider to have one or more timed-policy-expiry events to be triggered on a subscriber.
This in turn provides better subscriber management over the subscriber life cycle. These action handlers
provide functions like scheduled validation of subscriber state status (checking if the subscriber is authenticated
or unauthenticated) and periodically changing subscriber policy (such as forcing re-authentication on a daily
or hourly basis).
An action with a timer value of 0, triggers the action immediately.
Note
There are two methods to stop an active timer:
• Allow the timer to expire.
• Stop the active running timer using the stop-timer action command.
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide,
Release 4.3.x
308
Action Handlers
OL-28375-03