Step 4: Display Detailed Operational Information About Components

Action

To display detailed operational information about a component, use the following CLI command:

user@host> show chassis component-name

The command output displays the temperature of the air passing by the component, in degrees Centigrade and Fahrenheit. It displays the total percentage of CPU, interrupt, heap space, and buffer space being used by the component processor, including the total DRAM available to the component processor. The command output displays the time when the component started running and how long the component has been running. A short uptime can indicate a problem with the component.

For examples of sample output, see the JUNOS System Basics and Services Command Reference.

Figure 27 lists the components for which you can display more detailed operational status information.

Table 27: CLI Commands for Detailed Operational Status of Components

Component	Operational Mode CLI Command
FEB	show chassis feb	M5 and M10 routers
FPC	show chassis fpc	M40e and M160 routers, and T-series platforms
Routing Engine	show chassis routing-engine	M40e and M160 routers, and T-series platforms
SCB	show chassis scb	M40 routers
SFM	show chassis sfm	M40e and M160 routers
SSB	show chassis ssb	M20 routers
Switch Processor Mezzanine Board (SPMB)	show chassis spmb	T320 and T640 platforms