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## Overview of Sharing Service Provisioning

You can use infrastructure services to provision a service to be shared by a number of subscriber sessions. Infrastructure services are services that can be activated a number of times for one or more subscribers, but provisioned only once. Infrastructure services are designed to be shared among instances of aggregate services.

When an infrastructure service is activated, the SAE activates the service if a shared service session for the service is not already active; otherwise, it increments the usage counter for the service. When an infrastructure service is deactivated, the SAE decrements the usage counter for the shared session. When the last service session is deactivated, the shared session is also deactivated.

Although an infrastructure service is designed for use as a fragment service in an aggregate service, it can be used independently. As a fragment service, it can be bundled with other fragment services to deliver a service package in the aggregate service.

#### Related Topics

- Overview of SRC Script Services
- Overview of SRC Aggregate Services
- Adding an Infrastructure Service (SRC CLI)

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