Type of interface or card with which you are communicating. For most user communication tasks, the type is “RP”.
rack
Rack number. In a standalone router, the rack number is always “0”.
slot
Slot in which the RSP is installed. In a Cisco ASR 9000 Series Router, the RSP physical slot number is “RSP0” or “RSP1”.
module
Entity on a card that executes user commands or communicates with a port (interface). For executing commands from the EXEC prompt, the module is the “CPU0” of the RP. “CPU0” also controls the forwarding and operating system (OS) functions for the system..
router-name
Hostname of the router. The hostname is usually defined during initial configuration of the router,