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## Overview of Services for the SRC Software

The SRC software supports four types of services:

- Normal—Policy-based service.
- Aggregate—Group of services, handled as a unit.
- Infrastructure—Service that can be provisioned only once and then activated a number of times for one or more subscribers across network devices.
- Script—Custom service into which you can insert or reference a script that provisions policies on a number of systems across a network, including networks that contain devices that do not have supported device drivers.

Use aggregate and infrastructure services together to apply policies across routers running JUNOSe and JUNOS Software, and other systems that have a supported device driver.

Use script services to create customized service implementations, such as a service to configure firewall policies on a device that does not have a supported device driver—for example, a Juniper Networks NetScreen-5GT appliance.

## Automatic Service Activation

You can configure a permanent service—a service that the SAE automatically activates when it starts a subscriber session for subscribers who use that service. A typical application of this feature is to automatically activate a particular video service for all subscribers associated with a particular retailer. You can allow subscribers to deactivate the service, or prohibit them from deactivating it, after the SAE has automatically activated it. To make a service permanent, set the permanent option in the service configuration.

#### Related Topics

- Overview of SRC Aggregate Services
- Enabling the Service Configuration on the SRC CLI
- Before You Configure SRC Services
- Adding a Normal Service (SRC CLI)
- Setting Parameter Values for Services (SRC CLI)
- Restricting Service Activation

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