COPS Connection Between JunosE Routers and the SAE

Configuring the SRC client on a JunosE router opens a Common Open Policy Service (COPS) protocol layer connection to the SAE. When the SRC client software establishes a TCP/IP connection to the SAE, the SAE starts to manage the JunosE router. Subsequently, the SRC client sends configuration changes made on the JunosE router to the SAE, and the SAE updates SRC configurations for services and policies accordingly.

The SAE supports two versions of COPS:

The version of COPS that you use depends on the version of COPS that your JunosE router supports. When you set up your JunosE router to work with the SAE, you enable either COPS-PR mode or COPS-XDR mode.

Highly Available Connections to JunosE Routers

JunosE routers maintain state information, a feature that allows an active, managing SAE to reconnect to a JunosE router without performing a data resynchronization in the following instances:

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