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Monitoring the Chassis

The chassis properties include the status of any alarms on the Services Router, environment measurements, and a summary of the field-replaceable units (FRUs) on the router. To view these chassis properties, select Monitor>Chassis in the J-Web interface, or enter the following CLI show commands:

show chassis alarms
show chassis environment
show chassis hardware

Table 47 summarizes key output fields in chassis displays.

Table 47: Summary of Key Chassis Output Fields

Alarm Summary
Alarm Time	Date and time the alarm was first recorded.
Alarm Class	Severity class for this alarm: Minor or Major.	JUNOS has system-defined alarms and configurable alarms. System-defined alarms include FRU detection alarms (power supplies removed, for instance) and environmental alarms. The values for these alarms are defined within JUNOS. Configurable alarms are set in either of the following ways: In the J-Web configuration editor, on the Chassis>Alarm>interface-type page In the CLI configuration editor, with the alarm statement at the [edit chassis] level of the configuration hierarchy For details, see Configuring and Monitoring Alarms.
Alarm Description	A brief synopsis of the alarm.
Environment Information
Name	Chassis component. For J-series Services Routers, the chassis components are the Routing Engine and the fan.
Gauge Status	Status of the temperature gauge on the specified hardware component.
Temperature	Temperature of the air flowing past the hardware component.
Hardware Summary
Name	Chassis component. For J-series Services Routers, the chassis components are the Routing Engine, the Physical Interface Module (PIM) slot number (identified in the display as an FPC), and the PIM number (identified in the display as a PIC).	On J-series Services Routers, an FPC and a PIM are the same physical unit. The PIM number is always 0.
Version	Revision level of the specified hardware component.	Supply the version number when reporting any hardware problems to customer support.
Part Number	Part number of the chassis component.
Serial Number	Serial number of the chassis component. The serial number of the backplane is also the serial number of the router chassis.	Use this serial number when you need to contact customer support about the router chassis.
Description	Brief description of the hardware item.	For J-series PIMs, the description lists the number and type of the ports on the PIM—identified in the display as a PIC.

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