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# Before You Configure an Aggregate Service

Before you configure an aggregate service:

1. Plan the aggregate service:
   - Plan which fragment services will constitute the aggregate service.
   - Plan the routers on which the fragment services are to be activated.
2. Configure the fragment services.

   See Adding a Normal Service (SRC CLI) .

3. If the aggregate service includes services to be activated remotely, ensure that one or more NIC proxies are configured on each SAE.
4. Ensure that the NIC is configured to use a scenario that provides the appropriate type of key.

   See NIC Configuration Scenarios.

5. Ensure that the SAEs can communicate with each other and the NIC host(s). Make sure that firewalls permit TCP and CORBA communication between the systems hosting the SAEs, and communication between the NIC host(s) and the SAE.

   See Port Settings for SRC Components.

6. Ensure that the communication between SAEs is secure.

   Follow the standards for your organization to ensure that communication between SAEs is protected.

7. If the aggregate service is to include a fragment service on a remote SAE, ensure that the remote fragment service can become active by verifying that the fragment service is loaded on the remote SAE.

#### Related Topics

- Overview of SRC Aggregate Services
- How Parameters Are Passed from Aggregate Service to Fragment Service
- Configuring Service Fragments for an Aggregate Service (SRC CLI)
- Configuring Timers for Aggregate Services (SRC CLI)
- Defining Attributes for Service Activation (SRC CLI)

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