Overview of SRC Peer Support on MX Series Routers

When the Juniper Networks routing platform supports the use of the Diameter protocol to provide extended AAA functionality, the SRC software can dynamically manage services on these devices. The SRC software uses the Diameter protocol for communications between the local SRC peer on a Juniper Networks routing platform, such as the Juniper Networks MX Series Ethernet Services Router, and the SAE. The local SRC peer is known as JSRC and is part of the AAA application.

JSRC has the following responsibilities:

• Request address authorization from the SAE.
• Request service activations from the SAE.
• Activate and deactivate services as specified by the SAE.
• Log out subscribers as specified by the SAE.
• Update the SAE with status of new service activations and deactivations.
• Synchronize subscriber state and service information with the SAE.
• Notify the SAE when subscribers log out.

The SRC software enables the SAE to activate and deactivate subscriber services and log out subscribers. The SAE can control only those resources that have been provisioned through the SAE. Therefore, the SAE receives information about only those subscribers for whom JSRC has requested provisioning from the SAE. Similarly, the SAE can control only the subscriber services that it has activated.

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