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show chassis cfeb



(M7i and M10i routers only) Display status information about the Compact Forwarding Engine Board (CFEB).


This command has no options.

Required Privilege Level


Output Fields

Table 1 lists the output fields for the show chassis cfeb command. Output fields are listed in the approximate order in which they appear.

Table 1: show chassis cfeb Output Fields

Field Name

Field Description


Status of the CFEB:

  • Online—CFEB is online and running.

  • Offline—CFEB is powered down.

Intake Temperature

Temperature of the air before flowing past the CFEB.

Exhaust Temperature

Temperature of the air after flowing past the CFEB.

CPU utilization

Percentage of CPU being used by the CFEB processor.

Interrupt utilization

Of the total CPU being used by the CFEB processor, the percentage being used for interrupts

Heap Utilization

Percentage of heap space (dynamic memory) being used by the CFEB processor. If this number exceeds 80 percent, there may be a software problem (memory leak).

Buffer Utilization

Percentage of buffer space being used by the CFEB processor for buffering internal messages


Amount of DRAM available to the CFEB CPU.

Internet Processor II

Information about the CFEB processor.

Start time

Time when the Routing Engine detected that the CFEB was running.


How long the Routing Engine has been connected to the CFEB and, therefore, how long the Flexible PIC Concentrator (FPC) has been up and running.

Sample Output

show chassis cfeb (M7i)

show chassis cfeb (M10i)

Release Information

Command introduced before Junos OS Release 7.4.