Configuring VTA Services and Policies

You do not need to complete the tasks in this topic if you used the VTA configuration script to load the sample data. The sample data includes services for the SRC-VTA and policies for the services, and it configures the services to generate tracking events.

Only the SRC-VTA should activate and deactivate services that the SRC-VTA controls, and you must ensure that these services are not visible on a portal for subscribers to control manually. You can use other services with a VTA if you design the policies and priorities for those services to work together.

For example, if you manage subscribers with a VTA, you can allow subscribers to manually activate a service that overrides the quota service, and consequently prevents charges in the periodic and bought accounts. You would account for use of this service through RADIUS rather than a VTA, and subscribers would incur an extra cost for using the service. In this case, you configure the overriding service with a higher precedence than the quota service.

To configure services for the SRC-VTA:

  1. Create services for which a VTA monitors and manages usage.
  2. Configure policies that specify ingress and egress accounting rules consistent with the usage formula.

    For information about configuring accounting rules for a policy, see Policy Management Overview.