Protected System Domain Components
Figure 1 provides a simplified look at the physical components of a Protected System Domain (PSD). In this example, a pair of redundant Routing Engines in the JCS 1200 chassis are connected through one JCS switch module to two FPCs on the T-series routing platform.
Figure 1: PSD Components
With redundant JCS switch modules, each Routing Engine can be connected to both JCS switch modules. See Connections Between JCS 1200 and T-series Chassis.
Once a PSD is created in the Root System Domain (RSD) configuration file, you connect to the console port on the master Routing Engine for the specified PSD. Then, using the JUNOS software preinstalled on the master Routing Engine, you configure basic configuration information so that the PSD is on the network and so that you can log in to it through its network management port.
When these steps are completed, you can load an existing configuration from another router onto the PSD, merge a portion of a configuration file, or create the configuration directly on the PSD.