Creating Class-Map - Cisco ASR 9000 Series Configuration Manual

Activating Control Policy

Creating Class-Map

are met. These conditions are called match criteria. The match criteria are defined in class-maps, which is
included within the policy-map. It is possible to have different match criteria for different subscribers.
For example, a control policy can be created to start the "subscriber authentication" action, when a "session
start" event occurs, for a specific "MAC address" match criteria. After this control policy is deployed, when
the device having the specified MAC address starts a new session, BNG initiates the subscriber authentication
process.
The actions defined in the policy-map are executed by action handlers. For more information about supported
action handlers, see Action Handlers, on page 307.
The following figure shows the structure of control policy. It illustrates that for each policy there can be
multiple events; for each event, there can be multiple classes; and for each class, there can be multiple actions.
As a result, a single policy map can be used to trigger multiple actions, when a match is found for a single or
several criteria, during one or many events.
Figure 4: Control Policy
The following sample configuration shows the control policy structure:
policy-map type control subscriber policy-map-name
event <event-type> [match-all|match-first]
class type control subscriber <class-map-name>
<seq#> <action-type> <action_options>
Creating Class-Map
The class-map is used to define traffic class. The traffic is classified based on match criteria defined in the
class-map. The parameter for match criteria can be protocol, MAC address, input interface, access group, and
so on.
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide,
Release 4.3.x
68 OL-28375-03