Chassis Process

The JUNOS chassis process (chassisd) controls a Services Router chassis and its components as follows:

• Detects hardware on the system that is used to configure network interfaces with the J-Web user interface
• Monitors the physical status of hardware components and field-replaceable units (FRUs), detecting when environment sensors such as temperature sensors are triggered
• Relays signals and interrupts—for example, when devices are taken offline, so that the system can close sessions and shut down gracefully