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Home Documentation Junos OS Junos CLI Reference CLI Reference S

Junos CLI Reference

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Junos CLI Reference
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show chassis feb

date_range 13-Jun-24
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Syntax

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show chassis feb

Description

(ACX1000, ACX7509 and QFX5700 devices only) Display Forwarding Engine Board (FEB) status information. Use this command to identify the memory allocated for each PFE (Packet Forwarding Engine).

Options

This command has no options.

Required Privilege Level

view

Output Fields

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

Table 1: show chassis feb

Field Name

Field Description

State

State of the FEB:

  • Offline—FEB is powered down.

  • Online—FEB is operational and running.

  • Check—FEB is in alarmed state where the Switch Interface Board (SIB) plane is partially operational for the following reasons:

    • FEB is not inserted properly.

    • Two or more links between the FEB and Packet Forwarding Engine fail.

Temp (C) or Intake temperature

Temperature of the air passing by the FEB, in degrees Celsius or in both degrees Celsius and degrees Fahrenheit.

CPU Utilization (%)

Percentage of CPU being used:

  • Total—Total percentage of CPU being used by the FEB processor.

  • Interrupt—Of the total CPU being used by the FEB processor, the percentage being used for interrupts.

Memory DRAM (MB)

Total DRAM, in megabytes, available to the FEB processor.

Utilization (%)

Percentage of memory utilization:

  • Heap—Percentage of heap space (dynamic memory) being used by the FEB processor. If this number exceeds 80 percent, you might experience a software problem (memory leak).

  • Buffer—Percentage of buffer space being used by the FPC processor for buffering internal messages.

Exhaust A temperature

Temperature of the air flowing past Exhaust A.

Exhaust B temperature

Temperature of the air flowing past Exhaust B.

Total DDR DRAM

Amount of double data rate dynamic random access memory (DDR DRAM) available to the FEB CPU.

Total RLDRAM

Amount of reduced latency dynamic random access memory (RLDRAM) available to the FEB CPU.

Start time (Detail output only)

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

Uptime (Detail output only)

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

Sample Output

show chassis feb detail (ACX1000 Universal Metro Router)

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user@host> show chassis feb detail
FEB status:
Slot 0 information:
  State                                 Online    
  Temperature                        46 degrees C / 114 degrees F
  CPU utilization                    15 percent
  Interrupt utilization               5 percent
  Heap utilization                   45 percent
  Buffer utilization                 37 percent
  Total CPU DRAM                    256 MB
  Start time:                           2012-06-05 19:51:53 PDT
  Uptime:                               19 minutes, 6 seconds

show chassis feb (ACX7509 Universal Metro Router)

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user@host> show chassis feb
Slot 0 information:
  State                                 Online    
  Start time:                           2022-06-13 21:30:00 PDT
  Uptime:                               2 hours, 58 minutes, 40 seconds
Slot 1 information:
 State                                 Online Standby 
 Start time:                           2022-06-13 21:30:00 PDT
 Uptime:                               2 hours, 58 minutes, 40 seconds

show chassis feb (QFX5700 Switch)

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user@host> show chassis feb
Slot 0 information:
  State                                 Online
  Start time:                           2024-06-04 05:41:18 UTC
  Uptime:                               1 day, 3 hours, 42 minutes, 3 seconds
Slot 1 information:
  State                                 Offline Standby
  Start time:                           2024-06-04 05:41:01 UTC
  Uptime:                               0 second
  Reason:                               None
 
{master}

Release Information

Command introduced before Junos OS Release 7.4.

Command support added for ACX7509 platform in Junos OS Evolved Release 22.2. Detail option is not supported on ACX7509 platform.

Related Documentation

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